diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/README.md b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/README.md
new file mode 100644
index 000000000000..15baf72d8337
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/README.md
@@ -0,0 +1,336 @@
+
+
+# cindexOf
+
+> Return the first index of a specified search element in a single-precision complex floating-point strided array.
+
+
+
+
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var cindexOf = require( '@stdlib/blas/ext/base/cindex-of' );
+```
+
+#### cindexOf( N, searchElement, x, strideX )
+
+Returns the first index of a specified search element in a single-precision complex floating-point strided array.
+
+```javascript
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+
+var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+
+var idx = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, 1 );
+// returns 1
+```
+
+The function has the following parameters:
+
+- **N**: number of indexed elements.
+- **searchElement**: search element ([`Complex64`][@stdlib/complex/float32/ctor]).
+- **x**: input [`Complex64Array`][@stdlib/array/complex64].
+- **strideX**: stride length.
+
+If the function is unable to find a search element, the function returns `-1`.
+
+```javascript
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+
+var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+
+var idx = cindexOf( x.length, new Complex64( 7.0, 8.0 ), x, 1 );
+// returns -1
+```
+
+The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to search every other element:
+
+```javascript
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+
+var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
+
+var idx = cindexOf( 2, new Complex64( 5.0, 6.0 ), x, 2 );
+// returns 1
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+```javascript
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+
+// Initial array...
+var x0 = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
+
+// Create an offset view...
+var x1 = new Complex64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+// Find index...
+var idx = cindexOf( 3, new Complex64( 7.0, 8.0 ), x1, 1 );
+// returns 2
+```
+
+#### cindexOf.ndarray( N, searchElement, x, strideX, offsetX )
+
+Returns the first index of a specified search element in a single-precision complex floating-point strided array using alternative indexing semantics.
+
+```javascript
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+
+var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+
+var idx = cindexOf.ndarray( x.length, new Complex64( 3.0, 4.0 ), x, 1, 0 );
+// returns 1
+```
+
+The function has the following additional parameters:
+
+- **offsetX**: starting index.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to access only the last three elements of the strided array
+
+```javascript
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+
+var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
+
+var idx = cindexOf.ndarray( 3, new Complex64( 5.0, 6.0 ), x, 1, x.length-3 );
+// returns 1
+```
+
+
+
+
+
+
+
+
+
+## Notes
+
+- When searching for a search element, the function checks for equality of the real and imaginary components using the strict equality operator `===`. As a consequence, `NaN` values are considered distinct, and `-0` and `+0` are considered the same.
+
+
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var uniform = require( '@stdlib/random/array/uniform' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var cindexOf = require( '@stdlib/blas/ext/base/cindex-of' );
+
+var buf = uniform( 10*2, -10, 10, {
+ 'dtype': 'float32'
+});
+var x = new Complex64Array( buf.buffer );
+console.log( x );
+
+var idx = cindexOf( x.length, new Complex64( 5.0, 5.0 ), x, 1 );
+console.log( idx );
+```
+
+
+
+
+
+
+
+* * *
+
+
+
+## C APIs
+
+
+
+
+
+
+
+
+
+
+
+### Usage
+
+```c
+#include "stdlib/blas/ext/base/cindex_of.h"
+```
+
+#### stdlib_strided_cindex_of( N, searchElement, \*X, strideX )
+
+Returns the first index of a specified search element in a single-precision complex floating-point strided array.
+
+```c
+#include "stdlib/complex/float32/ctor.h"
+
+const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f };
+const stdlib_complex64_t searchElement = stdlib_complex64( 3.0f, 4.0f );
+
+int idx = stdlib_strided_cindex_of( 3, searchElement, (const stdlib_complex64_t *)x, 1 );
+// returns 1
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements.
+- **searchElement**: `[in] stdlib_complex64_t` search element.
+- **X**: `[in] stdlib_complex64_t*` input array.
+- **strideX**: `[in] CBLAS_INT` stride length.
+
+```c
+CBLAS_INT stdlib_strided_cindex_of( const CBLAS_INT N, const stdlib_complex64_t searchElement, const stdlib_complex64_t *X, const CBLAS_INT strideX );
+```
+
+#### stdlib_strided_cindex_of_ndarray( N, searchElement, \*X, strideX, offsetX )
+
+Returns the first index of a specified search element in a single-precision complex floating-point strided array using alternative indexing semantics.
+
+```c
+#include "stdlib/complex/float32/ctor.h"
+
+const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f };
+const stdlib_complex64_t searchElement = stdlib_complex64( 3.0f, 4.0f );
+
+int idx = stdlib_strided_cindex_of_ndarray( 3, searchElement, (const stdlib_complex64_t *)x, 1, 0 );
+// returns 1
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements.
+- **searchElement**: `[in] stdlib_complex64_t` search element.
+- **X**: `[in] stdlib_complex64_t*` input array.
+- **strideX**: `[in] CBLAS_INT` stride length.
+- **offsetX**: `[in] CBLAS_INT` starting index.
+
+```c
+CBLAS_INT stdlib_strided_cindex_of_ndarray( const CBLAS_INT N, const stdlib_complex64_t searchElement, const stdlib_complex64_t *X, const CBLAS_INT strideX, const CBLAS_INT offsetX );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+### Examples
+
+```c
+#include "stdlib/blas/ext/base/cindex_of.h"
+#include "stdlib/complex/float32/ctor.h"
+#include
+
+int main( void ) {
+ // Create a strided array (interleaved real and imaginary components):
+ const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f, 8.0f };
+
+ // Specify the number of indexed elements:
+ const int N = 4;
+
+ // Specify a stride:
+ const int strideX = 1;
+
+ // Specify a search element:
+ const stdlib_complex64_t searchElement = stdlib_complex64( 5.0f, 6.0f );
+
+ // Perform a search:
+ int idx = stdlib_strided_cindex_of( N, searchElement, (const stdlib_complex64_t *)x, strideX );
+
+ // Print the result:
+ printf( "index value: %d\n", idx );
+}
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[@stdlib/array/complex64]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/complex64
+
+[@stdlib/complex/float32/ctor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/complex/float32/ctor
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.js
new file mode 100644
index 000000000000..0e1d5d0fbdfa
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.js
@@ -0,0 +1,108 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var uniform = require( '@stdlib/random/array/uniform' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var cindexOf = require( './../lib/cindex_of.js' );
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var search;
+ var buf;
+ var x;
+
+ buf = uniform( len*2, -10.0, 10.0, {
+ 'dtype': 'float32'
+ });
+ x = new Complex64Array( buf.buffer );
+ search = new Complex64( 100.0, 100.0 );
+
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var out;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ out = cindexOf( x.length, search, x, 1 );
+ if ( typeof out !== 'number' ) {
+ b.fail( 'should return a number' );
+ }
+ }
+ b.toc();
+ if ( !isInteger( out ) ) {
+ b.fail( 'should return an integer' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+
+ f = createBenchmark( len );
+ bench( format( '%s:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..39441ec972d0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.native.js
@@ -0,0 +1,117 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var uniform = require( '@stdlib/random/array/uniform' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var cindexOf = tryRequire( resolve( __dirname, './../lib/cindex_of.native.js' ) );
+var opts = {
+ 'skip': ( cindexOf instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var search;
+ var buf;
+ var x;
+
+ buf = uniform( len*2, -10.0, 10.0, {
+ 'dtype': 'float32'
+ });
+ x = new Complex64Array( buf.buffer );
+ search = new Complex64( 100.0, 100.0 );
+
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var out;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ out = cindexOf( x.length, search, x, 1 );
+ if ( typeof out !== 'number' ) {
+ b.fail( 'should return a number' );
+ }
+ }
+ b.toc();
+ if ( !isInteger( out ) ) {
+ b.fail( 'should return an integer' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+
+ f = createBenchmark( len );
+ bench( format( '%s::native:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..3781d1d9e63c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.ndarray.js
@@ -0,0 +1,108 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var uniform = require( '@stdlib/random/array/uniform' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var cindexOf = require( './../lib/ndarray.js' );
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var search;
+ var buf;
+ var x;
+
+ buf = uniform( len*2, -10.0, 10.0, {
+ 'dtype': 'float32'
+ });
+ x = new Complex64Array( buf.buffer );
+ search = new Complex64( 100.0, 100.0 );
+
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var out;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ out = cindexOf( x.length, search, x, 1, 0 );
+ if ( typeof out !== 'number' ) {
+ b.fail( 'should return a number' );
+ }
+ }
+ b.toc();
+ if ( !isInteger( out ) ) {
+ b.fail( 'should return an integer' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+
+ f = createBenchmark( len );
+ bench( format( '%s:ndarray:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.ndarray.native.js
new file mode 100644
index 000000000000..f37462ae0fb9
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/benchmark.ndarray.native.js
@@ -0,0 +1,117 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var uniform = require( '@stdlib/random/array/uniform' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var cindexOf = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( cindexOf instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var search;
+ var buf;
+ var x;
+
+ buf = uniform( len*2, -10.0, 10.0, {
+ 'dtype': 'float32'
+ });
+ x = new Complex64Array( buf.buffer );
+ search = new Complex64( 100.0, 100.0 );
+
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var out;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ out = cindexOf( x.length, search, x, 1, 0 );
+ if ( typeof out !== 'number' ) {
+ b.fail( 'should return a number' );
+ }
+ }
+ b.toc();
+ if ( !isInteger( out ) ) {
+ b.fail( 'should return an integer' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+
+ f = createBenchmark( len );
+ bench( format( '%s::native:ndarray:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/c/Makefile
new file mode 100644
index 000000000000..0756dc7da20a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := benchmark.length.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled benchmarks.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/c/benchmark.length.c
new file mode 100644
index 000000000000..01c010e18e42
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/benchmark/c/benchmark.length.c
@@ -0,0 +1,202 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/cindex_of.h"
+#include "stdlib/complex/float32/ctor.h"
+#include
+#include
+#include
+#include
+#include
+
+#define NAME "cindex_of"
+#define ITERATIONS 10000000
+#define REPEATS 3
+#define MIN 1
+#define MAX 6
+
+/**
+* Prints the TAP version.
+*/
+static void print_version( void ) {
+ printf( "TAP version 13\n" );
+}
+
+/**
+* Prints the TAP summary.
+*
+* @param total total number of tests
+* @param passing total number of passing tests
+*/
+static void print_summary( int total, int passing ) {
+ printf( "#\n" );
+ printf( "1..%d\n", total ); // TAP plan
+ printf( "# total %d\n", total );
+ printf( "# pass %d\n", passing );
+ printf( "#\n" );
+ printf( "# ok\n" );
+}
+
+/**
+* Prints benchmarks results.
+*
+* @param iterations number of iterations
+* @param elapsed elapsed time in seconds
+*/
+static void print_results( int iterations, double elapsed ) {
+ double rate = (double)iterations / elapsed;
+ printf( " ---\n" );
+ printf( " iterations: %d\n", iterations );
+ printf( " elapsed: %0.9f\n", elapsed );
+ printf( " rate: %0.9f\n", rate );
+ printf( " ...\n" );
+}
+
+/**
+* Returns a clock time.
+*
+* @return clock time
+*/
+static double tic( void ) {
+ struct timeval now;
+ gettimeofday( &now, NULL );
+ return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+}
+
+/**
+* Generates a random number on the interval [0,1).
+*
+* @return random number
+*/
+static float rand_float( void ) {
+ int r = rand();
+ return (float)r / ( (float)RAND_MAX + 1.0f );
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark1( int iterations, int len ) {
+ stdlib_complex64_t search;
+ double elapsed;
+ float *x;
+ double t;
+ int idx;
+ int i;
+
+ x = (float *)malloc( (size_t)( len*2 ) * sizeof( float ) );
+ for ( i = 0; i < len*2; i++ ) {
+ x[ i ] = ( rand_float()*20000.0f ) - 10000.0f;
+ }
+ search = stdlib_complex64( 20000.0f, 20000.0f );
+ idx = -1;
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ // cppcheck-suppress uninitvar
+ idx = stdlib_strided_cindex_of( len, search, (stdlib_complex64_t *)x, 1 );
+ if ( idx < -2 ) {
+ printf( "unexpected result\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( idx < -2 ) {
+ printf( "unexpected result\n" );
+ }
+ free( x );
+ return elapsed;
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark2( int iterations, int len ) {
+ stdlib_complex64_t search;
+ double elapsed;
+ float *x;
+ double t;
+ int idx;
+ int i;
+
+ x = (float *)malloc( (size_t)( len*2 ) * sizeof( float ) );
+ for ( i = 0; i < len*2; i++ ) {
+ x[ i ] = ( rand_float()*20000.0f ) - 10000.0f;
+ }
+ search = stdlib_complex64( 20000.0f, 20000.0f );
+ idx = -1;
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ // cppcheck-suppress uninitvar
+ idx = stdlib_strided_cindex_of_ndarray( len, search, (stdlib_complex64_t *)x, 1, 0 );
+ if ( idx < -2 ) {
+ printf( "unexpected result\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( idx < -2 ) {
+ printf( "unexpected result\n" );
+ }
+ free( x );
+ return elapsed;
+}
+
+/**
+* Main execution sequence.
+*/
+int main( void ) {
+ double elapsed;
+ int count;
+ int iter;
+ int len;
+ int i;
+ int j;
+
+ // Use the current time to seed the random number generator:
+ srand( time( NULL ) );
+
+ print_version();
+ count = 0;
+ for ( i = MIN; i <= MAX; i++ ) {
+ len = pow( 10, i );
+ iter = ITERATIONS / pow( 10, i-1 );
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::%s:len=%d\n", NAME, len );
+ elapsed = benchmark1( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::%s:ndarray:len=%d\n", NAME, len );
+ elapsed = benchmark2( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ }
+ print_summary( count, count );
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/binding.gyp b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/binding.gyp
new file mode 100644
index 000000000000..0d6508a12e99
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/binding.gyp
@@ -0,0 +1,170 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A `.gyp` file for building a Node.js native add-on.
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ # List of files to include in this file:
+ 'includes': [
+ './include.gypi',
+ ],
+
+ # Define variables to be used throughout the configuration for all targets:
+ 'variables': {
+ # Target name should match the add-on export name:
+ 'addon_target_name%': 'addon',
+
+ # Set variables based on the host OS:
+ 'conditions': [
+ [
+ 'OS=="win"',
+ {
+ # Define the object file suffix:
+ 'obj': 'obj',
+ },
+ {
+ # Define the object file suffix:
+ 'obj': 'o',
+ }
+ ], # end condition (OS=="win")
+ ], # end conditions
+ }, # end variables
+
+ # Define compile targets:
+ 'targets': [
+
+ # Target to generate an add-on:
+ {
+ # The target name should match the add-on export name:
+ 'target_name': '<(addon_target_name)',
+
+ # Define dependencies:
+ 'dependencies': [],
+
+ # Define directories which contain relevant include headers:
+ 'include_dirs': [
+ # Local include directory:
+ '<@(include_dirs)',
+ ],
+
+ # List of source files:
+ 'sources': [
+ '<@(src_files)',
+ ],
+
+ # Settings which should be applied when a target's object files are used as linker input:
+ 'link_settings': {
+ # Define libraries:
+ 'libraries': [
+ '<@(libraries)',
+ ],
+
+ # Define library directories:
+ 'library_dirs': [
+ '<@(library_dirs)',
+ ],
+ },
+
+ # C/C++ compiler flags:
+ 'cflags': [
+ # Enable commonly used warning options:
+ '-Wall',
+
+ # Aggressive optimization:
+ '-O3',
+ ],
+
+ # C specific compiler flags:
+ 'cflags_c': [
+ # Specify the C standard to which a program is expected to conform:
+ '-std=c99',
+ ],
+
+ # C++ specific compiler flags:
+ 'cflags_cpp': [
+ # Specify the C++ standard to which a program is expected to conform:
+ '-std=c++11',
+ ],
+
+ # Linker flags:
+ 'ldflags': [],
+
+ # Apply conditions based on the host OS:
+ 'conditions': [
+ [
+ 'OS=="mac"',
+ {
+ # Linker flags:
+ 'ldflags': [
+ '-undefined dynamic_lookup',
+ '-Wl,-no-pie',
+ '-Wl,-search_paths_first',
+ ],
+ },
+ ], # end condition (OS=="mac")
+ [
+ 'OS!="win"',
+ {
+ # C/C++ flags:
+ 'cflags': [
+ # Generate platform-independent code:
+ '-fPIC',
+ ],
+ },
+ ], # end condition (OS!="win")
+ ], # end conditions
+ }, # end target <(addon_target_name)
+
+ # Target to copy a generated add-on to a standard location:
+ {
+ 'target_name': 'copy_addon',
+
+ # Declare that the output of this target is not linked:
+ 'type': 'none',
+
+ # Define dependencies:
+ 'dependencies': [
+ # Require that the add-on be generated before building this target:
+ '<(addon_target_name)',
+ ],
+
+ # Define a list of actions:
+ 'actions': [
+ {
+ 'action_name': 'copy_addon',
+ 'message': 'Copying addon...',
+
+ # Explicitly list the inputs in the command-line invocation below:
+ 'inputs': [],
+
+ # Declare the expected outputs:
+ 'outputs': [
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+
+ # Define the command-line invocation:
+ 'action': [
+ 'cp',
+ '<(PRODUCT_DIR)/<(addon_target_name).node',
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+ },
+ ], # end actions
+ }, # end target copy_addon
+ ], # end targets
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/docs/repl.txt
new file mode 100644
index 000000000000..0833aee84650
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/docs/repl.txt
@@ -0,0 +1,79 @@
+
+{{alias}}( N, searchElement, x, strideX )
+ Returns the first index of a specified search element in a single-precision
+ complex floating-point strided array.
+
+ The `N` and stride parameters determine which elements in the strided array
+ are accessed at runtime.
+
+ Indexing is relative to the first index. To introduce an offset, use a typed
+ array view.
+
+ If `N <= 0`, the function returns `-1`.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ searchElement: Complex64
+ Search element.
+
+ x: Complex64Array
+ Input array.
+
+ strideX: integer
+ Stride length.
+
+ Returns
+ -------
+ idx: integer
+ Index.
+
+ Examples
+ --------
+ > var x = new {{alias:@stdlib/array/complex64}}( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ > var s = new {{alias:@stdlib/complex/float32/ctor}}( 3.0, 4.0 );
+ > var idx = {{alias}}( x.length, s, x, 1 )
+ 1
+
+
+{{alias}}.ndarray( N, searchElement, x, strideX, offsetX )
+ Returns the first index of a specified search element in a single-precision
+ complex floating-point strided array using alternative indexing semantics.
+
+ While typed array views mandate a view offset based on the underlying
+ buffer, the offset parameter supports indexing semantics based on a
+ starting index.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ searchElement: Complex64
+ Search element.
+
+ x: Complex64Array
+ Input array.
+
+ strideX: integer
+ Stride length.
+
+ offsetX: integer
+ Starting index.
+
+ Returns
+ -------
+ idx: integer
+ Index.
+
+ Examples
+ --------
+ > var x = new {{alias:@stdlib/array/complex64}}( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ > var s = new {{alias:@stdlib/complex/float32/ctor}}( 3.0, 4.0 );
+ > var idx = {{alias}}.ndarray( x.length, s, x, 1, 0 )
+ 1
+
+ See Also
+ --------
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/docs/types/index.d.ts
new file mode 100644
index 000000000000..bdc69efdc081
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/docs/types/index.d.ts
@@ -0,0 +1,116 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+///
+
+import { Complex64Array } from '@stdlib/types/array';
+import { Complex64 } from '@stdlib/types/complex';
+
+/**
+* Interface describing `cindexOf`.
+*/
+interface Routine {
+ /**
+ * Returns the first index of a specified search element in a single-precision complex floating-point strided array.
+ *
+ * ## Notes
+ *
+ * - If the function is unable to find a search element, the function returns `-1`.
+ *
+ * @param N - number of indexed elements
+ * @param searchElement - search element
+ * @param x - input array
+ * @param strideX - stride length
+ * @returns index
+ *
+ * @example
+ * var Complex64Array = require( '@stdlib/array/complex64' );
+ * var Complex64 = require( '@stdlib/complex/float32/ctor' );
+ *
+ * var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ *
+ * var idx = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, 1 );
+ * // returns 1
+ */
+ ( N: number, searchElement: Complex64, x: Complex64Array, strideX: number ): number;
+
+ /**
+ * Returns the first index of a specified search element in a single-precision complex floating-point strided array using alternative indexing semantics.
+ *
+ * ## Notes
+ *
+ * - If the function is unable to find a search element, the function returns `-1`.
+ *
+ * @param N - number of indexed elements
+ * @param searchElement - search element
+ * @param x - input array
+ * @param strideX - stride length
+ * @param offsetX - starting index
+ * @returns index
+ *
+ * @example
+ * var Complex64Array = require( '@stdlib/array/complex64' );
+ * var Complex64 = require( '@stdlib/complex/float32/ctor' );
+ *
+ * var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ *
+ * var idx = cindexOf.ndarray( x.length, new Complex64( 3.0, 4.0 ), x, 1, 0 );
+ * // returns 1
+ */
+ ndarray( N: number, searchElement: Complex64, x: Complex64Array, strideX: number, offsetX: number ): number;
+}
+
+/**
+* Returns the first index of a specified search element in a single-precision complex floating-point strided array.
+*
+* ## Notes
+*
+* - If the function is unable to find a search element, the function returns `-1`.
+*
+* @param N - number of indexed elements
+* @param searchElement - search element
+* @param x - input array
+* @param strideX - stride length
+* @returns index
+*
+* @example
+* var Complex64Array = require( '@stdlib/array/complex64' );
+* var Complex64 = require( '@stdlib/complex/float32/ctor' );
+*
+* var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+*
+* var idx = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, 1 );
+* // returns 1
+*
+* @example
+* var Complex64Array = require( '@stdlib/array/complex64' );
+* var Complex64 = require( '@stdlib/complex/float32/ctor' );
+*
+* var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+*
+* var idx = cindexOf.ndarray( x.length, new Complex64( 3.0, 4.0 ), x, 1, 0 );
+* // returns 1
+*/
+declare var cindexOf: Routine;
+
+
+// EXPORTS //
+
+export = cindexOf;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/docs/types/test.ts
new file mode 100644
index 000000000000..5fe0fcb36840
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/docs/types/test.ts
@@ -0,0 +1,196 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable space-in-parens */
+
+import Complex64Array = require( '@stdlib/array/complex64' );
+import Complex64 = require( '@stdlib/complex/float32/ctor' );
+import cindexOf = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf( x.length, s, x, 1 ); // $ExpectType number
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a number...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf( '10', s, x, 1 ); // $ExpectError
+ cindexOf( true, s, x, 1 ); // $ExpectError
+ cindexOf( false, s, x, 1 ); // $ExpectError
+ cindexOf( null, s, x, 1 ); // $ExpectError
+ cindexOf( undefined, s, x, 1 ); // $ExpectError
+ cindexOf( [], s, x, 1 ); // $ExpectError
+ cindexOf( {}, s, x, 1 ); // $ExpectError
+ cindexOf( ( x: number ): number => x, s, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a Complex64...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+
+ cindexOf( x.length, '10', x, 1 ); // $ExpectError
+ cindexOf( x.length, true, x, 1 ); // $ExpectError
+ cindexOf( x.length, false, x, 1 ); // $ExpectError
+ cindexOf( x.length, null, x, 1 ); // $ExpectError
+ cindexOf( x.length, undefined, x, 1 ); // $ExpectError
+ cindexOf( x.length, [], x, 1 ); // $ExpectError
+ cindexOf( x.length, {}, x, 1 ); // $ExpectError
+ cindexOf( x.length, ( x: number ): number => x, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a Complex64Array...
+{
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf( 3, s, '10', 1 ); // $ExpectError
+ cindexOf( 3, s, true, 1 ); // $ExpectError
+ cindexOf( 3, s, false, 1 ); // $ExpectError
+ cindexOf( 3, s, null, 1 ); // $ExpectError
+ cindexOf( 3, s, undefined, 1 ); // $ExpectError
+ cindexOf( 3, s, {}, 1 ); // $ExpectError
+ cindexOf( 3, s, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a number...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf( x.length, s, x, '10' ); // $ExpectError
+ cindexOf( x.length, s, x, true ); // $ExpectError
+ cindexOf( x.length, s, x, false ); // $ExpectError
+ cindexOf( x.length, s, x, null ); // $ExpectError
+ cindexOf( x.length, s, x, undefined ); // $ExpectError
+ cindexOf( x.length, s, x, [] ); // $ExpectError
+ cindexOf( x.length, s, x, {} ); // $ExpectError
+ cindexOf( x.length, s, x, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf(); // $ExpectError
+ cindexOf( x.length ); // $ExpectError
+ cindexOf( x.length, s ); // $ExpectError
+ cindexOf( x.length, s, x ); // $ExpectError
+ cindexOf( x.length, s, x, 1, 0 ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a number...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf.ndarray( x.length, s, x, 1, 0 ); // $ExpectType number
+}
+
+// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf.ndarray( '10', s, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( true, s, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( false, s, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( null, s, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( undefined, s, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( [], s, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( {}, s, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( ( x: number ): number => x, s, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a Complex64...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+
+ cindexOf.ndarray( x.length, '10', x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, true, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, false, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, null, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, undefined, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, [], x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, {}, x, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, ( x: number ): number => x, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a third argument which is not a Complex64Array...
+{
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf.ndarray( 3, s, '10', 1, 0 ); // $ExpectError
+ cindexOf.ndarray( 3, s, true, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( 3, s, false, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( 3, s, null, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( 3, s, undefined, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( 3, s, {}, 1, 0 ); // $ExpectError
+ cindexOf.ndarray( 3, s, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf.ndarray( x.length, s, x, '10', 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, true, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, false, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, null, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, undefined, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, [], 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, {}, 0 ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a number...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf.ndarray( x.length, s, x, 1, '10' ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, 1, true ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, 1, false ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, 1, null ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, 1, undefined ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, 1, [] ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, 1, {} ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
+{
+ const x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ const s = new Complex64( 3.0, 4.0 );
+
+ cindexOf.ndarray(); // $ExpectError
+ cindexOf.ndarray( x.length ); // $ExpectError
+ cindexOf.ndarray( x.length, s ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, 1 ); // $ExpectError
+ cindexOf.ndarray( x.length, s, x, 1, 0, 0 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/examples/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/examples/c/Makefile
new file mode 100644
index 000000000000..c8f8e9a1517b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := example.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled examples.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/examples/c/example.c
new file mode 100644
index 000000000000..e0a65b53f0cd
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/examples/c/example.c
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/cindex_of.h"
+#include "stdlib/complex/float32/ctor.h"
+#include
+
+int main( void ) {
+ // Create a strided array (interleaved real and imaginary components):
+ const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f, 8.0f };
+
+ // Specify the number of indexed elements:
+ const int N = 4;
+
+ // Specify a stride:
+ const int strideX = 1;
+
+ // Specify a search element:
+ const stdlib_complex64_t searchElement = stdlib_complex64( 5.0f, 6.0f );
+
+ // Perform a search:
+ int idx = stdlib_strided_cindex_of( N, searchElement, (const stdlib_complex64_t *)x, strideX );
+
+ // Print the result:
+ printf( "index value: %d\n", idx );
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/examples/index.js
new file mode 100644
index 000000000000..c97f396ae3f4
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/examples/index.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var uniform = require( '@stdlib/random/array/uniform' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var cindexOf = require( './../lib' );
+
+var buf = uniform( 10*2, -10, 10, {
+ 'dtype': 'float32'
+});
+var x = new Complex64Array( buf.buffer );
+console.log( x );
+
+var idx = cindexOf( x.length, new Complex64( 5.0, 5.0 ), x, 1 );
+console.log( idx );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/include.gypi b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/include.gypi
new file mode 100644
index 000000000000..bee8d41a2caf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/include.gypi
@@ -0,0 +1,53 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A GYP include file for building a Node.js native add-on.
+#
+# Main documentation:
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ # Define variables to be used throughout the configuration for all targets:
+ 'variables': {
+ # Source directory:
+ 'src_dir': './src',
+
+ # Include directories:
+ 'include_dirs': [
+ '=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "blas",
+ "find",
+ "index",
+ "search",
+ "element",
+ "array",
+ "ndarray",
+ "strided",
+ "complex",
+ "complex64",
+ "complex64array"
+ ]
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/src/Makefile b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/src/Makefile
new file mode 100644
index 000000000000..2caf905cedbe
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+
+# RULES #
+
+#/
+# Removes generated files for building an add-on.
+#
+# @example
+# make clean-addon
+#/
+clean-addon:
+ $(QUIET) -rm -f *.o *.node
+
+.PHONY: clean-addon
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean: clean-addon
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/src/addon.c
new file mode 100644
index 000000000000..882048deab7a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/src/addon.c
@@ -0,0 +1,65 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/cindex_of.h"
+#include "stdlib/blas/base/shared.h"
+#include "stdlib/complex/float32/ctor.h"
+#include "stdlib/napi/export.h"
+#include "stdlib/napi/argv.h"
+#include "stdlib/napi/argv_complex64.h"
+#include "stdlib/napi/argv_int64.h"
+#include "stdlib/napi/argv_strided_complex64array.h"
+#include "stdlib/napi/create_int32.h"
+#include
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 4 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 );
+ STDLIB_NAPI_ARGV_COMPLEX64( env, searchElement, argv, 1 );
+ STDLIB_NAPI_ARGV_STRIDED_COMPLEX64ARRAY( env, X, N, strideX, argv, 2 );
+ STDLIB_NAPI_CREATE_INT32( env, API_SUFFIX(stdlib_strided_cindex_of)( N, searchElement, (stdlib_complex64_t *)X, strideX ), idx ); // TODO: Need to revisit in order to support int64_t for CBLAS_INT
+ return idx;
+}
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon_method( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 5 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 4 );
+ STDLIB_NAPI_ARGV_COMPLEX64( env, searchElement, argv, 1 );
+ STDLIB_NAPI_ARGV_STRIDED_COMPLEX64ARRAY( env, X, N, strideX, argv, 2 );
+ STDLIB_NAPI_CREATE_INT32( env, API_SUFFIX(stdlib_strided_cindex_of_ndarray)( N, searchElement, (stdlib_complex64_t *)X, strideX, offsetX ), idx ); // TODO: Need to revisit in order to support int64_t for CBLAS_INT
+ return idx;
+}
+
+STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( addon, "ndarray", addon_method );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/src/main.c
new file mode 100644
index 000000000000..1fa9cfa1332f
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/src/main.c
@@ -0,0 +1,71 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/cindex_of.h"
+#include "stdlib/complex/float32/ctor.h"
+#include "stdlib/complex/float32/real.h"
+#include "stdlib/complex/float32/imag.h"
+#include "stdlib/strided/base/stride2offset.h"
+#include "stdlib/blas/base/shared.h"
+
+/**
+* Returns the first index of a specified search element in a single-precision complex floating-point strided array.
+*
+* @param N number of indexed elements
+* @param searchElement search element
+* @param X input array
+* @param strideX stride length
+* @return index
+*/
+CBLAS_INT API_SUFFIX(stdlib_strided_cindex_of)( const CBLAS_INT N, const stdlib_complex64_t searchElement, const stdlib_complex64_t *X, const CBLAS_INT strideX ) {
+ CBLAS_INT ox = stdlib_strided_stride2offset( N, strideX );
+ return API_SUFFIX(stdlib_strided_cindex_of_ndarray)( N, searchElement, X, strideX, ox );
+}
+
+/**
+* Returns the first index of a specified search element in a single-precision complex floating-point strided array using alternative indexing semantics.
+*
+* @param N number of indexed elements
+* @param searchElement search element
+* @param X input array
+* @param strideX stride length
+* @param offsetX starting index
+* @return index
+*/
+CBLAS_INT API_SUFFIX(stdlib_strided_cindex_of_ndarray)( const CBLAS_INT N, const stdlib_complex64_t searchElement, const stdlib_complex64_t *X, const CBLAS_INT strideX, const CBLAS_INT offsetX ) {
+ stdlib_complex64_t v;
+ CBLAS_INT ix;
+ CBLAS_INT i;
+ float re;
+ float im;
+
+ if ( N <= 0 ) {
+ return -1;
+ }
+ re = stdlib_complex64_real( searchElement );
+ im = stdlib_complex64_imag( searchElement );
+ ix = offsetX;
+ for ( i = 0; i < N; i++ ) {
+ v = X[ ix ];
+ if ( stdlib_complex64_real( v ) == re && stdlib_complex64_imag( v ) == im ) {
+ return i;
+ }
+ ix += strideX;
+ }
+ return -1;
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.cindex_of.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.cindex_of.js
new file mode 100644
index 000000000000..25e74c89a92c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.cindex_of.js
@@ -0,0 +1,145 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var cindexOf = require( './../lib/cindex_of.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof cindexOf, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function returns the first index of an element which equals a provided search element', function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0,
+ 5.0,
+ 6.0
+ ]);
+
+ // Nonnegative stride...
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, 1 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, 1 );
+ t.strictEqual( actual, 2, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 5.0, 6.0 ), x, 1 );
+ t.strictEqual( actual, 4, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 7.0, 8.0 ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ // Negative stride...
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, -1 );
+ t.strictEqual( actual, 4, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, -1 );
+ t.strictEqual( actual, 2, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 5.0, 6.0 ), x, -1 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 7.0, 8.0 ), x, -1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns `-1` if provided `N` parameter is less than or equal to zero', function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+
+ actual = cindexOf( 0, new Complex64( 3.0, 4.0 ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( -1, new Complex64( 3.0, 4.0 ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a stride length equal to zero', function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 3.0,
+ 4.0,
+ 1.0,
+ 2.0,
+ 5.0,
+ 6.0
+ ]);
+
+ actual = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, 0 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns `-1` if provided a search element having a `NaN` component', function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array( [ NaN, NaN ] );
+
+ actual = cindexOf( 1, new Complex64( NaN, NaN ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( 1, new Complex64( NaN, 0.0 ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( 1, new Complex64( 0.0, NaN ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.cindex_of.native.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.cindex_of.native.js
new file mode 100644
index 000000000000..6f15c71f970e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.cindex_of.native.js
@@ -0,0 +1,154 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var cindexOf = tryRequire( resolve( __dirname, './../lib/cindex_of.native.js' ) );
+var opts = {
+ 'skip': ( cindexOf instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof cindexOf, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function returns the first index of an element which equals a provided search element', opts, function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0,
+ 5.0,
+ 6.0
+ ]);
+
+ // Nonnegative stride...
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, 1 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, 1 );
+ t.strictEqual( actual, 2, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 5.0, 6.0 ), x, 1 );
+ t.strictEqual( actual, 4, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 7.0, 8.0 ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ // Negative stride...
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, -1 );
+ t.strictEqual( actual, 4, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, -1 );
+ t.strictEqual( actual, 2, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 5.0, 6.0 ), x, -1 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 7.0, 8.0 ), x, -1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns `-1` if provided `N` parameter is less than or equal to zero', opts, function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+
+ actual = cindexOf( 0, new Complex64( 3.0, 4.0 ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( -1, new Complex64( 3.0, 4.0 ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a stride length equal to zero', opts, function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 3.0,
+ 4.0,
+ 1.0,
+ 2.0,
+ 5.0,
+ 6.0
+ ]);
+
+ actual = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, 0 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns `-1` if provided a search element having a `NaN` component', opts, function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array( [ NaN, NaN ] );
+
+ actual = cindexOf( 1, new Complex64( NaN, NaN ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( 1, new Complex64( NaN, 0.0 ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( 1, new Complex64( 0.0, NaN ), x, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.js
new file mode 100644
index 000000000000..a72dff7d7889
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.js
@@ -0,0 +1,82 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var proxyquire = require( 'proxyquire' );
+var IS_BROWSER = require( '@stdlib/assert/is-browser' );
+var cindexOf = require( './../lib' );
+
+
+// VARIABLES //
+
+var opts = {
+ 'skip': IS_BROWSER
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof cindexOf, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+ t.strictEqual( typeof cindexOf.ndarray, 'function', 'method is a function' );
+ t.end();
+});
+
+tape( 'if a native implementation is available, the main export is the native implementation', opts, function test( t ) {
+ var cindexOf = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( cindexOf, mock, 'returns expected value' );
+ t.end();
+
+ function tryRequire() {
+ return mock;
+ }
+
+ function mock() {
+ // Mock...
+ }
+});
+
+tape( 'if a native implementation is not available, the main export is a JavaScript implementation', opts, function test( t ) {
+ var cindexOf;
+ var main;
+
+ main = require( './../lib/main.js' );
+
+ cindexOf = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( cindexOf, main, 'returns expected value' );
+ t.end();
+
+ function tryRequire() {
+ return new Error( 'Cannot find module' );
+ }
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.ndarray.js
new file mode 100644
index 000000000000..2ab40706a516
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.ndarray.js
@@ -0,0 +1,172 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var cindexOf = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof cindexOf, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function returns the first index of an element which equals a provided search element', function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0,
+ 5.0,
+ 6.0
+ ]);
+
+ // Nonnegative stride...
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, 1, 0 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length-1, new Complex64( 3.0, 4.0 ), x, 1, 1 );
+ t.strictEqual( actual, 1, 'returns expected value' );
+
+ actual = cindexOf( x.length-2, new Complex64( 5.0, 6.0 ), x, 1, 2 );
+ t.strictEqual( actual, 2, 'returns expected value' );
+
+ actual = cindexOf( x.length-2, new Complex64( 7.0, 8.0 ), x, 1, 2 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ // Negative stride...
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, -1, x.length-1 );
+ t.strictEqual( actual, 4, 'returns expected value' );
+
+ actual = cindexOf( 3, new Complex64( 3.0, 4.0 ), x, -2, x.length-1 );
+ t.strictEqual( actual, 1, 'returns expected value' );
+
+ actual = cindexOf( 3, new Complex64( 1.0, 2.0 ), x, -2, x.length-2 );
+ t.strictEqual( actual, 2, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 7.0, 8.0 ), x, -1, x.length-1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns `-1` if provided an `N` parameter is less than or equal to zero', function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+
+ actual = cindexOf( 0, new Complex64( 3.0, 4.0 ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( -1, new Complex64( 3.0, 4.0 ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` offset', function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0,
+ 7.0,
+ 8.0
+ ]);
+
+ actual = cindexOf( 3, new Complex64( 5.0, 6.0 ), x, 1, 1 );
+ t.strictEqual( actual, 1, 'returns expected value' );
+
+ actual = cindexOf( 3, new Complex64( 1.0, 2.0 ), x, 1, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a stride length equal to zero', function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 3.0,
+ 4.0,
+ 1.0,
+ 2.0,
+ 5.0,
+ 6.0
+ ]);
+
+ actual = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, 0, 0 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 5.0, 6.0 ), x, 0, 2 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, 0, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns `-1` if provided a search element having a `NaN` component', function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array( [ NaN, NaN ] );
+
+ actual = cindexOf( 1, new Complex64( NaN, NaN ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( 1, new Complex64( NaN, 0.0 ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( 1, new Complex64( 0.0, NaN ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.ndarray.native.js
new file mode 100644
index 000000000000..9c5a1bd2c013
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/cindex-of/test/test.ndarray.native.js
@@ -0,0 +1,181 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Complex64Array = require( '@stdlib/array/complex64' );
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var cindexOf = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( cindexOf instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof cindexOf, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function returns the first index of an element which equals a provided search element', opts, function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0,
+ 5.0,
+ 6.0
+ ]);
+
+ // Nonnegative stride...
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, 1, 0 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length-1, new Complex64( 3.0, 4.0 ), x, 1, 1 );
+ t.strictEqual( actual, 1, 'returns expected value' );
+
+ actual = cindexOf( x.length-2, new Complex64( 5.0, 6.0 ), x, 1, 2 );
+ t.strictEqual( actual, 2, 'returns expected value' );
+
+ actual = cindexOf( x.length-2, new Complex64( 7.0, 8.0 ), x, 1, 2 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ // Negative stride...
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, -1, x.length-1 );
+ t.strictEqual( actual, 4, 'returns expected value' );
+
+ actual = cindexOf( 3, new Complex64( 3.0, 4.0 ), x, -2, x.length-1 );
+ t.strictEqual( actual, 1, 'returns expected value' );
+
+ actual = cindexOf( 3, new Complex64( 1.0, 2.0 ), x, -2, x.length-2 );
+ t.strictEqual( actual, 2, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 7.0, 8.0 ), x, -1, x.length-1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns `-1` if provided an `N` parameter is less than or equal to zero', opts, function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0
+ ]);
+
+ actual = cindexOf( 0, new Complex64( 3.0, 4.0 ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( -1, new Complex64( 3.0, 4.0 ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` offset', opts, function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 1.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 5.0,
+ 6.0,
+ 7.0,
+ 8.0
+ ]);
+
+ actual = cindexOf( 3, new Complex64( 5.0, 6.0 ), x, 1, 1 );
+ t.strictEqual( actual, 1, 'returns expected value' );
+
+ actual = cindexOf( 3, new Complex64( 1.0, 2.0 ), x, 1, 1 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a stride length equal to zero', opts, function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array([
+ 3.0,
+ 4.0,
+ 1.0,
+ 2.0,
+ 5.0,
+ 6.0
+ ]);
+
+ actual = cindexOf( x.length, new Complex64( 3.0, 4.0 ), x, 0, 0 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 5.0, 6.0 ), x, 0, 2 );
+ t.strictEqual( actual, 0, 'returns expected value' );
+
+ actual = cindexOf( x.length, new Complex64( 1.0, 2.0 ), x, 0, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns `-1` if provided a search element having a `NaN` component', opts, function test( t ) {
+ var actual;
+ var x;
+
+ x = new Complex64Array( [ NaN, NaN ] );
+
+ actual = cindexOf( 1, new Complex64( NaN, NaN ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( 1, new Complex64( NaN, 0.0 ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ actual = cindexOf( 1, new Complex64( 0.0, NaN ), x, 1, 0 );
+ t.strictEqual( actual, -1, 'returns expected value' );
+
+ t.end();
+});