diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/README.md b/lib/node_modules/@stdlib/lapack/base/iladlc/README.md
new file mode 100644
index 000000000000..e0715351a0b5
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/README.md
@@ -0,0 +1,259 @@
+
+
+# iladlc
+
+> Find the index of the last non-zero column in a matrix `A`.
+
+
+
+## Usage
+
+```javascript
+var iladlc = require( '@stdlib/lapack/base/iladlc' );
+```
+
+#### iladlc( order, M, N, A, LDA )
+
+Returns the index of the last non-zero column in a matrix `A`.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var A = new Float64Array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] );
+
+/*
+ A = [
+ [ 1.0, 2.0, 0.0 ],
+ [ 3.0, 4.0, 0.0 ]
+ ]
+*/
+
+var out = iladlc( 'row-major', 2, 3, A, 3 );
+// returns 1
+```
+
+The function has the following parameters:
+
+- **order**: storage layout.
+- **M**: number of rows in `A`.
+- **N**: number of columns in `A`.
+- **A**: input [`Float64Array`][mdn-float64array].
+- **LDA**: stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`).
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+// Initial array:
+var A0 = new Float64Array( [ 9999.0, 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] );
+
+// Create an offset view:
+var A1 = new Float64Array( A0.buffer, A0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+var out = iladlc( 'row-major', 2, 3, A1, 3 );
+// returns 1
+```
+
+#### iladlc.ndarray( M, N, A, strideA1, strideA2, offsetA )
+
+Returns the index of the last non-zero column in a matrix `A` using alternative indexing semantics.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var A = new Float64Array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] );
+
+/*
+ A = [
+ [ 1.0, 2.0, 0.0 ],
+ [ 3.0, 4.0, 0.0 ]
+ ]
+*/
+
+var out = iladlc.ndarray( 2, 3, A, 3, 1, 0 );
+// returns 1
+```
+
+The function has the following parameters:
+
+- **M**: number of rows in `A`.
+- **N**: number of columns in `A`.
+- **A**: input [`Float64Array`][mdn-float64array].
+- **strideA1**: stride of the first dimension of `A`.
+- **strideA2**: stride of the second dimension of `A`.
+- **offsetA**: starting index for `A`.
+
+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,
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var A = new Float64Array( [ 9999.0, 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] );
+
+/*
+ A = [
+ [ 1.0, 2.0, 0.0 ],
+ [ 3.0, 4.0, 0.0 ]
+ ]
+*/
+
+var out = iladlc.ndarray( 2, 3, A, 3, 1, 1 );
+// returns 1
+```
+
+
+
+
+
+
+
+## Notes
+
+- This routine is commonly used throughout LAPACK to shrink work domains (e.g., before bulge-chasing, deflation, or when trimming Householder panels), thus ensuring that higher-level routines operate only on numerically relevant sub-matrices.
+- `iladlc()` corresponds to the [LAPACK][lapack] routine [`iladlc`][lapack-iladlc].
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var ndarray2array = require( '@stdlib/ndarray/base/to-array' );
+var Float64Array = require( '@stdlib/array/float64' );
+var shape2strides = require( '@stdlib/ndarray/base/shape2strides' );
+var iladlc = require( '@stdlib/lapack/base/iladlc' );
+
+var shape = [ 3, 3 ];
+var order = 'row-major';
+var strides = shape2strides( shape, order );
+
+var A = new Float64Array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0, 5.0, 6.0, 0.0 ] );
+console.log( ndarray2array( A, shape, strides, 0, order ) );
+
+var out = iladlc( order, shape[ 0 ], shape[ 1 ], A, strides[ 0 ] );
+console.log( out );
+```
+
+
+
+
+
+
+
+* * *
+
+
+
+## C APIs
+
+
+
+
+
+
+
+
+
+
+
+### Usage
+
+```c
+TODO
+```
+
+#### TODO
+
+TODO.
+
+```c
+TODO
+```
+
+TODO
+
+```c
+TODO
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+### Examples
+
+```c
+TODO
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[lapack]: https://www.netlib.org/lapack/explore-html/
+
+[lapack-iladlc]: https://www.netlib.org/lapack/explore-html-3.6.1/d7/d43/group__aux_o_t_h_e_rauxiliary_gab8b3783390380038c9d26de61d7aefb4.html
+
+[mdn-float64array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float64Array
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+
+
+
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/benchmark/benchmark.js b/lib/node_modules/@stdlib/lapack/base/iladlc/benchmark/benchmark.js
new file mode 100644
index 000000000000..1d123579f1e9
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/benchmark/benchmark.js
@@ -0,0 +1,111 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 isnan = require( '@stdlib/math/base/assert/is-nan' );
+var zeros = require( '@stdlib/array/zeros' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var floor = require( '@stdlib/math/base/special/floor' );
+var pkg = require( './../package.json' ).name;
+var iladlc = require( './../lib/iladlc.js' );
+
+
+// VARIABLES //
+
+var LAYOUTS = [
+ 'row-major',
+ 'column-major'
+];
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {string} order - storage layout
+* @param {PositiveInteger} N - number of elements along each dimension
+* @returns {Function} benchmark function
+*/
+function createBenchmark( order, N ) {
+ var A = zeros( N*N, 'float64' );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var z;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ A[ 0 ] = i;
+ z = iladlc( order, N, N, A, N );
+ if ( isnan( z ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var min;
+ var max;
+ var ord;
+ var N;
+ var f;
+ var i;
+ var k;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( k = 0; k < LAYOUTS.length; k++ ) {
+ ord = LAYOUTS[ k ];
+ for ( i = min; i <= max; i++ ) {
+ N = floor( pow( pow( 10, i ), 1.0/2.0 ) );
+ f = createBenchmark( ord, N );
+ bench( pkg+'::square_matrix:order='+ord+',size='+(N*N), f );
+ }
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/lapack/base/iladlc/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..584f12bd7e37
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/benchmark/benchmark.ndarray.js
@@ -0,0 +1,122 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var floor = require( '@stdlib/math/base/special/floor' );
+var zeros = require( '@stdlib/array/zeros' );
+var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string' );
+var pkg = require( './../package.json' ).name;
+var iladlc = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var LAYOUTS = [
+ 'row-major',
+ 'column-major'
+];
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {string} order - storage layout
+* @param {PositiveInteger} N - number of elements along each dimension
+* @returns {Function} benchmark function
+*/
+function createBenchmark( order, N ) {
+ var A = zeros( N*N, 'float64' );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var sa1;
+ var sa2;
+ var z;
+ var i;
+
+ if ( isColumnMajor( order ) ) {
+ sa1 = 1;
+ sa2 = N;
+ } else { // order === 'row-major'
+ sa1 = N;
+ sa2 = 1;
+ }
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ A[ 0 ] = i;
+ z = iladlc( N, N, A, sa1, sa2, 0 );
+ if ( isnan( z ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var min;
+ var max;
+ var ord;
+ var N;
+ var f;
+ var i;
+ var k;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( k = 0; k < LAYOUTS.length; k++ ) {
+ ord = LAYOUTS[ k ];
+ for ( i = min; i <= max; i++ ) {
+ N = floor( pow( pow( 10, i ), 1.0/2.0 ) );
+ f = createBenchmark( ord, N );
+ bench( pkg+'::square_matrix:order='+ord+',size='+(N*N), f );
+ }
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/docs/repl.txt b/lib/node_modules/@stdlib/lapack/base/iladlc/docs/repl.txt
new file mode 100644
index 000000000000..6945e7c29f86
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/docs/repl.txt
@@ -0,0 +1,81 @@
+
+{{alias}}( order, M, N, A, LDA )
+ Returns the index of the last non-zero column in a matrix `A`.
+
+ Indexing is relative to the first index. To introduce an offset, use typed
+ array views.
+
+ If provided an empty matrix or a matrix containing only zeros, the function
+ returns `-1` (i.e., an invalid index).
+
+ Parameters
+ ----------
+ order: string
+ Row-major (C-style) or column-major (Fortran-style) order. Must be
+ either 'row-major' or 'column-major'.
+
+ M: integer
+ Number of rows in `A`.
+
+ N: integer
+ Number of columns in `A`.
+
+ A: Float64Array
+ Input matrix `A`.
+
+ Returns
+ -------
+ out: integer
+ Zero-based index of the last non-zero column.
+
+ Examples
+ --------
+ > var A = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0, 4.0 ] );
+ > {{alias}}( 'row-major', 2, 2, A, 2 )
+ 1
+
+
+{{alias}}.ndarray( M, N, A, strideA1, strideA2, offsetA )
+ Returns the index of the last non-zero column in a matrix `A` using
+ alternative indexing semantics.
+
+ While typed array views mandate a view offset based on the underlying
+ buffer, the offset parameters support indexing semantics based on starting
+ indices.
+
+ If provided an empty matrix or a matrix containing only zeros, the function
+ returns `-1` (i.e., an invalid index).
+
+ Parameters
+ ----------
+ M: integer
+ Number of rows in `A`.
+
+ N: integer
+ Number of columns in `A`.
+
+ A: Float64Array
+ Input matrix `A`.
+
+ strideA1: integer
+ Stride of the first dimension of `A`.
+
+ strideA2: integer
+ Stride of the second dimension of `A`.
+
+ offsetA: integer
+ Starting index for `A`.
+
+ Returns
+ -------
+ out: integer
+ Zero-based index of the last non-zero column.
+
+ Examples
+ --------
+ > var A = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0, 4.0 ] );
+ > {{alias}}.ndarray( 2, 2, A, 2, 1, 0 )
+ 1
+
+ See Also
+ --------
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/docs/types/index.d.ts b/lib/node_modules/@stdlib/lapack/base/iladlc/docs/types/index.d.ts
new file mode 100644
index 000000000000..b74c6859dc3d
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/docs/types/index.d.ts
@@ -0,0 +1,113 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 { Layout } from '@stdlib/types/blas';
+
+/**
+* Interface describing `iladlc`.
+*/
+interface Routine {
+ /**
+ * Returns the index of the last non-zero column in a matrix `A`.
+ *
+ * ## Notes
+ *
+ * - If provided an empty matrix or a matrix containing only zeros, the function returns `-1` (i.e., an invalid index).
+ *
+ * @param order - storage layout
+ * @param M - number of rows in `A`
+ * @param N - number of columns in `A`
+ * @param A - input matrix
+ * @param LDA - stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`)
+ * @returns index of the last non-zero column
+ *
+ * @example
+ * var Float64array = require( '@stdlib/array/float64' );
+ *
+ * var A = new Float64array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] ); // => [ [ 1.0, 2.0, 0,0 ], [ 3.0, 4.0, 0.0 ] ]
+ *
+ * var out = iladlc( 'row-major', 2, 3, A, 3 );
+ * // returns 1
+ */
+ ( order: Layout, M: number, N: number, A: Float64Array, LDA: number ): number;
+
+ /**
+ * Returns the index of the last non-zero column in a matrix `A` using alternative indexing semantics.
+ *
+ * ## Notes
+ *
+ * - If provided an empty matrix or a matrix containing only zeros, the function returns `-1` (i.e., an invalid index).
+ *
+ * @param M - number of rows in `A`
+ * @param N - number of columns in `A`
+ * @param A - input matrix
+ * @param strideA1 - stride of the first dimension of `A`
+ * @param strideA2 - stride of the second dimension of `A`
+ * @returns index of the last non-zero column
+ *
+ * @example
+ * var Float64array = require( '@stdlib/array/float64' );
+ *
+ * var A = new Float64array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] ); // => [ [ 1.0, 2.0, 0,0 ], [ 3.0, 4.0, 0.0 ] ]
+ *
+ * var out = iladlc.ndarray( 2, 3, A, 3, 1, 0 );
+ * // returns 1
+ */
+ ndarray( M: number, N: number, A: Float64Array, strideA1: number, strideA2: number, offsetA: number ): number;
+}
+
+/**
+* Returns the index of the last non-zero column in a matrix `A`.
+*
+* ## Notes
+*
+* - If provided an empty matrix or a matrix containing only zeros, the function returns `-1` (i.e., an invalid index).
+*
+* @param order - storage layout
+* @param M - number of rows in `A`
+* @param N - number of columns in `A`
+* @param A - input matrix
+* @param LDA - stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`)
+* @returns index of the last non-zero column
+*
+* @example
+* var Float64array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] ); // => [ [ 1.0, 2.0, 0,0 ], [ 3.0, 4.0, 0.0 ] ]
+*
+* var out = iladlc( 'row-major', 2, 3, A, 3 );
+* // returns 1
+*
+* @example
+* var Float64array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] ); // => [ [ 1.0, 2.0, 0,0 ], [ 3.0, 4.0, 0.0 ] ]
+*
+* var out = iladlc.ndarray( 2, 3, A, 3, 1, 0 );
+* // returns 1
+*/
+declare var iladlc: Routine;
+
+
+// EXPORTS //
+
+export = iladlc;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/docs/types/test.ts b/lib/node_modules/@stdlib/lapack/base/iladlc/docs/types/test.ts
new file mode 100644
index 000000000000..d75a38de80ea
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/docs/types/test.ts
@@ -0,0 +1,213 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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.
+*/
+
+import iladlc = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc( 'row-major', 2, 2, A, 2 ); // $ExpectType number
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a string...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc( 5, 2, 2, A, 2 ); // $ExpectError
+ iladlc( true, 2, 2, A, 2 ); // $ExpectError
+ iladlc( false, 2, 2, A, 2 ); // $ExpectError
+ iladlc( null, 2, 2, A, 2 ); // $ExpectError
+ iladlc( void 0, 2, 2, A, 2 ); // $ExpectError
+ iladlc( [], 2, 2, A, 2 ); // $ExpectError
+ iladlc( {}, 2, 2, A, 2 ); // $ExpectError
+ iladlc( ( x: number ): number => x, 2, 2, A, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc( 'row-major', '5', 2, A, 2 ); // $ExpectError
+ iladlc( 'row-major', true, 2, A, 2 ); // $ExpectError
+ iladlc( 'row-major', false, 2, A, 2 ); // $ExpectError
+ iladlc( 'row-major', null, 2, A, 2 ); // $ExpectError
+ iladlc( 'row-major', void 0, 2, A, 2 ); // $ExpectError
+ iladlc( 'row-major', [], 2, A, 2 ); // $ExpectError
+ iladlc( 'row-major', {}, 2, A, 2 ); // $ExpectError
+ iladlc( 'row-major', ( x: number ): number => x, 2, A, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc( 'row-major', 2, '5', A, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, true, A, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, false, A, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, null, A, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, void 0, A, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, [], A, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, {}, A, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, ( x: number ): number => x, A, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a Float64Array...
+{
+ iladlc( 'row-major', 2, 2, '5', 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, 5, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, true, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, false, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, null, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, void 0, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, [], 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, {}, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, ( x: number ): number => x, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc( 'row-major', 2, 2, A, '5' ); // $ExpectError
+ iladlc( 'row-major', 2, 2, A, true ); // $ExpectError
+ iladlc( 'row-major', 2, 2, A, false ); // $ExpectError
+ iladlc( 'row-major', 2, 2, A, null ); // $ExpectError
+ iladlc( 'row-major', 2, 2, A, void 0 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, A, [] ); // $ExpectError
+ iladlc( 'row-major', 2, 2, A, {} ); // $ExpectError
+ iladlc( 'row-major', 2, 2, A, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc(); // $ExpectError
+ iladlc( 'row-major' ); // $ExpectError
+ iladlc( 'row-major', 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2 ); // $ExpectError
+ iladlc( 'row-major', 2, 2, A ); // $ExpectError
+ iladlc( 'row-major', 2, 2, A, 2, 10 ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc.ndarray( 2, 2, A, 2, 1, 0 ); // $ExpectType number
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc.ndarray( '5', 2, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( true, 2, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( false, 2, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( null, 2, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( void 0, 2, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( [], 2, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( {}, 2, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( ( x: number ): number => x, 2, A, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc.ndarray( 2, '5', A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, true, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, false, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, null, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, void 0, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, [], A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, {}, A, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, ( x: number ): number => x, A, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a Float64Array...
+{
+ iladlc.ndarray( 2, 2, '5', 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, 5, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, true, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, false, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, null, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, void 0, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, [], 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, {}, 2, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, ( x: number ): number => x, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc.ndarray( 2, 2, A, '5', 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, true, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, false, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, null, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, void 0, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, [], 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, {}, 1, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc.ndarray( 2, 2, A, 2, '5', 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, true, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, false, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, null, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, void 0, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, [], 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, {}, 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a number...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc.ndarray( 2, 2, A, 2, 1, '5' ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, 1, true ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, 1, false ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, 1, null ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, 1, void 0 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, 1, [] ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, 1, {} ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
+{
+ const A = new Float64Array( 4 );
+
+ iladlc.ndarray(); // $ExpectError
+ iladlc.ndarray( 2 ); // $ExpectError
+ iladlc.ndarray( 2, 2 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, 1 ); // $ExpectError
+ iladlc.ndarray( 2, 2, A, 2, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/examples/index.js b/lib/node_modules/@stdlib/lapack/base/iladlc/examples/index.js
new file mode 100644
index 000000000000..38ed4505cdf5
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/examples/index.js
@@ -0,0 +1,34 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 ndarray2array = require( '@stdlib/ndarray/base/to-array' );
+var Float64Array = require( '@stdlib/array/float64' );
+var shape2strides = require( '@stdlib/ndarray/base/shape2strides' );
+var iladlc = require( './../lib' );
+
+var shape = [ 3, 3 ];
+var order = 'row-major';
+var strides = shape2strides( shape, order );
+
+var A = new Float64Array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0, 5.0, 6.0, 0.0 ] );
+console.log( ndarray2array( A, shape, strides, 0, order ) );
+
+var out = iladlc( order, shape[ 0 ], shape[ 1 ], A, strides[ 0 ] );
+console.log( out );
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/lib/base.js b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/base.js
new file mode 100644
index 000000000000..9971bd25d8ba
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/base.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 iladlr = require( '@stdlib/lapack/base/iladlr' ).ndarray;
+
+
+// MAIN //
+
+/**
+* Returns the index of the last non-zero column in a matrix `A`.
+*
+* ## Notes
+*
+* - If provided an empty matrix or a matrix containing only zeros, the function returns `-1` (i.e., an invalid index).
+*
+* @private
+* @param {PositiveInteger} M - number of rows in `A`
+* @param {PositiveInteger} N - number of columns in `A`
+* @param {Float64Array} A - input matrix
+* @param {integer} strideA1 - stride of the first dimension of `A`
+* @param {integer} strideA2 - stride of the second dimension of `A`
+* @param {NonNegativeInteger} offsetA - index offset for `A`
+* @returns {integer} index of the last non-zero column
+*
+* @example
+* var Float64array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] ); // => [ [ 1.0, 2.0, 0.0 ], [ 3.0, 4.0, 0.0 ] ]
+*
+* var out = iladlc( 2, 3, A, 3, 1, 0 );
+* // returns 1
+*
+* @example
+* var Float64array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64array( [ 1.0, 3.0, 2.0, 4.0, 0.0, 0.0 ] ); // => [ [ 1.0, 2.0, 0.0 ], [ 3.0, 4.0, 0.0 ] ]
+*
+* var out = iladlc( 2, 3, A, 1, 2, 0 );
+* // returns 1
+*/
+function iladlc( M, N, A, strideA1, strideA2, offsetA ) {
+ return iladlr( N, M, A, strideA2, strideA1, offsetA );
+}
+
+
+// EXPORTS //
+
+module.exports = iladlc;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/lib/iladlc.js b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/iladlc.js
new file mode 100644
index 000000000000..3231fe0d57a9
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/iladlc.js
@@ -0,0 +1,85 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 isLayout = require( '@stdlib/blas/base/assert/is-layout' );
+var isRowMajor = require( '@stdlib/ndarray/base/assert/is-row-major-string' );
+var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string' );
+var max = require( '@stdlib/math/base/special/fast/max' );
+var format = require( '@stdlib/string/format' );
+var base = require( './base.js' );
+
+
+// MAIN //
+
+/**
+* Returns the index of the last non-zero column in a matrix `A`.
+*
+* ## Notes
+*
+* - If provided an empty matrix or a matrix containing only zeros, the function returns `-1` (i.e., an invalid index).
+*
+* @param {string} order - storage layout
+* @param {PositiveInteger} M - number of rows in `A`
+* @param {PositiveInteger} N - number of columns in `A`
+* @param {Float64Array} A - input matrix
+* @param {integer} LDA - stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`)
+* @throws {TypeError} first argument must be a valid order
+* @throws {RangeError} fifth argument must be greater than or equal to max(1,N)
+* @returns {integer} index of the last non-zero column
+*
+* @example
+* var Float64array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] ); // => [ [ 1.0, 2.0, 0.0 ], [ 3.0, 4.0, 0.0 ] ]
+*
+* var out = iladlc( 'row-major', 2, 3, A, 3 );
+* // returns 1
+*/
+function iladlc( order, M, N, A, LDA ) {
+ var sa1;
+ var sa2;
+ var s;
+ if ( !isLayout( order ) ) {
+ throw new TypeError( format( 'invalid argument. First argument must be a valid order. Value: `%s`.', order ) );
+ }
+ if ( isRowMajor( order ) ) {
+ s = N;
+ } else {
+ s = M;
+ }
+ if ( LDA < max( 1, s ) ) {
+ throw new RangeError( format( 'invalid argument. Fifth argument must be greater than or equal to max(1,%d). Value: `%d`.', s, LDA ) );
+ }
+ if ( isColumnMajor( order ) ) {
+ sa1 = 1;
+ sa2 = LDA;
+ } else { // order === 'row-major'
+ sa1 = LDA;
+ sa2 = 1;
+ }
+ return base( M, N, A, sa1, sa2, 0 );
+}
+
+
+// EXPORTS //
+
+module.exports = iladlc;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/lib/index.js b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/index.js
new file mode 100644
index 000000000000..b5618f0794e2
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/index.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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';
+
+/**
+* LAPACK routine to find the index of the last non-zero column in a input matrix.
+*
+* @module @stdlib/lapack/base/iladlc
+*
+* @example
+* var Float64array = require( '@stdlib/array/float64' );
+* var iladlc = require( '@stdlib/lapack/base/iladlc' );
+*
+* var A = new Float64array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] ); // => [ [ 1.0, 2.0, 0.0 ], [ 3.0, 4.0, 0.0 ] ]
+*
+* var out = iladlc( 'row-major', 2, 3, A, 3 );
+* // returns 1
+*/
+
+// MODULES //
+
+var join = require( 'path' ).join;
+var tryRequire = require( '@stdlib/utils/try-require' );
+var isError = require( '@stdlib/assert/is-error' );
+var main = require( './main.js' );
+
+
+// MAIN //
+
+var iladlc;
+var tmp = tryRequire( join( __dirname, './native.js' ) );
+if ( isError( tmp ) ) {
+ iladlc = main;
+} else {
+ iladlc = tmp;
+}
+
+
+// EXPORTS //
+
+module.exports = iladlc;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/lib/main.js b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/main.js
new file mode 100644
index 000000000000..f97d6f686359
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/main.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var iladlc = require( './iladlc.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( iladlc, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = iladlc;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/lib/ndarray.js b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/ndarray.js
new file mode 100644
index 000000000000..06351fbd120c
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/lib/ndarray.js
@@ -0,0 +1,58 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 base = require( './base.js' );
+
+
+// MAIN //
+
+/**
+* Finds the index of the last non-zero column in a matrix `A` using alternative indexing semantics.
+*
+* ## Notes
+*
+* - If provided an empty matrix or a matrix containing only zeros, the function returns `-1` (i.e., an invalid index).
+*
+* @param {PositiveInteger} M - number of rows in `A`
+* @param {PositiveInteger} N - number of columns in `A`
+* @param {Float64Array} A - input matrix
+* @param {integer} strideA1 - stride of the first dimension of `A`
+* @param {integer} strideA2 - stride of the second dimension of `A`
+* @param {NonNegativeInteger} offsetA - index offset for `A`
+* @returns {integer} index of the last non-zero column
+*
+* @example
+* var Float64array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 0.0 ] ); // => [ [ 1.0, 2.0, 0.0 ], [ 3.0, 4.0, 0.0 ] ]
+*
+* var out = iladlc( 2, 3, A, 3, 1, 0 );
+* // returns 1
+*/
+function iladlc( M, N, A, strideA1, strideA2, offsetA ) {
+ return base( M, N, A, strideA1, strideA2, offsetA );
+}
+
+
+// EXPORTS //
+
+module.exports = iladlc;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/package.json b/lib/node_modules/@stdlib/lapack/base/iladlc/package.json
new file mode 100644
index 000000000000..31ae84a7411f
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/package.json
@@ -0,0 +1,72 @@
+{
+ "name": "@stdlib/lapack/base/iladlc",
+ "version": "0.0.0",
+ "description": "LAPACK routine to find the index of the last non-zero column in a input matrix.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "main": "./lib",
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "lib": "./lib",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "stdmath",
+ "mathematics",
+ "math",
+ "lapack",
+ "iladlc",
+ "last",
+ "column",
+ "index",
+ "matrix",
+ "auxilary",
+ "linear",
+ "algebra",
+ "subroutines",
+ "array",
+ "ndarray",
+ "float64",
+ "double",
+ "float64array"
+ ]
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/column_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/column_major.json
new file mode 100644
index 000000000000..75b1e74f3f39
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/column_major.json
@@ -0,0 +1,15 @@
+{
+ "order": "column-major",
+ "A": [ 1.0, 4.0, 2.0, 1.0, 0.0, 0.0 ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 1,
+ "strideA2": 2,
+ "offsetA": 0,
+ "LDA": 2,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/column_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/column_major_zeros.json
new file mode 100644
index 000000000000..f480814443be
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/column_major_zeros.json
@@ -0,0 +1,15 @@
+{
+ "order": "column-major",
+ "A": [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 1,
+ "strideA2": 2,
+ "offsetA": 0,
+ "LDA": 2,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/column_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/column_major.json
new file mode 100644
index 000000000000..f75917461c24
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/column_major.json
@@ -0,0 +1,28 @@
+{
+ "order": "column-major",
+ "A": [
+ 1.0,
+ 9999.0,
+ 4.0,
+ 9999.0,
+ 2.0,
+ 9999.0,
+ 1.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 2,
+ "strideA2": 4,
+ "offsetA": 0,
+ "LDA": 2,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/column_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/column_major_zeros.json
new file mode 100644
index 000000000000..a5832e296c80
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/column_major_zeros.json
@@ -0,0 +1,28 @@
+{
+ "order": "column-major",
+ "A": [
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 2,
+ "strideA2": 4,
+ "offsetA": 0,
+ "LDA": 2,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/row_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/row_major.json
new file mode 100644
index 000000000000..9f679c20e503
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/row_major.json
@@ -0,0 +1,28 @@
+{
+ "order": "row-major",
+ "A": [
+ 1.0,
+ 9999.0,
+ 2.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 4.0,
+ 9999.0,
+ 1.0,
+ 9999.0,
+ 0.0,
+ 9999.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 6,
+ "strideA2": 2,
+ "offsetA": 0,
+ "LDA": 3,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/row_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/row_major_zeros.json
new file mode 100644
index 000000000000..a4600f4cc890
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/large_strides/row_major_zeros.json
@@ -0,0 +1,28 @@
+{
+ "order": "row-major",
+ "A": [
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0,
+ 0.0,
+ 9999.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 6,
+ "strideA2": 2,
+ "offsetA": 0,
+ "LDA": 3,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/column_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/column_major.json
new file mode 100644
index 000000000000..6255823ae44a
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/column_major.json
@@ -0,0 +1,22 @@
+{
+ "order": "column-major",
+ "A": [
+ 0.0,
+ 0.0,
+ 2.0,
+ 1.0,
+ 1.0,
+ 4.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 1,
+ "strideA2": -2,
+ "offsetA": 4,
+ "LDA": 2,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/column_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/column_major_zeros.json
new file mode 100644
index 000000000000..8d10b99a7f59
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/column_major_zeros.json
@@ -0,0 +1,22 @@
+{
+ "order": "column-major",
+ "A": [
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 1,
+ "strideA2": -2,
+ "offsetA": 4,
+ "LDA": 2,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/row_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/row_major.json
new file mode 100644
index 000000000000..2a5419a31eb2
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/row_major.json
@@ -0,0 +1,22 @@
+{
+ "order": "row-major",
+ "A": [
+ 4.0,
+ 1.0,
+ 0.0,
+ 1.0,
+ 2.0,
+ 0.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": -3,
+ "strideA2": 1,
+ "offsetA": 3,
+ "LDA": 3,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/row_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/row_major_zeros.json
new file mode 100644
index 000000000000..99450022d8cc
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/mixed_strides/row_major_zeros.json
@@ -0,0 +1,22 @@
+{
+ "order": "row-major",
+ "A": [
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": -3,
+ "strideA2": 1,
+ "offsetA": 3,
+ "LDA": 3,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/column_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/column_major.json
new file mode 100644
index 000000000000..62e842441497
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/column_major.json
@@ -0,0 +1,22 @@
+{
+ "order": "column-major",
+ "A": [
+ 0.0,
+ 0.0,
+ 1.0,
+ 2.0,
+ 4.0,
+ 1.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": -1,
+ "strideA2": -2,
+ "offsetA": 5,
+ "LDA": 2,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/column_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/column_major_zeros.json
new file mode 100644
index 000000000000..1123e8d1b252
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/column_major_zeros.json
@@ -0,0 +1,22 @@
+{
+ "order": "column-major",
+ "A": [
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": -1,
+ "strideA2": -2,
+ "offsetA": 5,
+ "LDA": 2,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/row_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/row_major.json
new file mode 100644
index 000000000000..50dec8496a73
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/row_major.json
@@ -0,0 +1,22 @@
+{
+ "order": "row-major",
+ "A": [
+ 0.0,
+ 1.0,
+ 4.0,
+ 0.0,
+ 2.0,
+ 1.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": -3,
+ "strideA2": -1,
+ "offsetA": 5,
+ "LDA": 3,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/row_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/row_major_zeros.json
new file mode 100644
index 000000000000..8525dd854700
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/negative_strides/row_major_zeros.json
@@ -0,0 +1,22 @@
+{
+ "order": "row-major",
+ "A": [
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": -3,
+ "strideA2": -1,
+ "offsetA": 5,
+ "LDA": 3,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/column_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/column_major.json
new file mode 100644
index 000000000000..eff5c767d2c7
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/column_major.json
@@ -0,0 +1,23 @@
+{
+ "order": "column-major",
+ "A": [
+ 9999.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 1.0,
+ 0.0,
+ 0.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 1,
+ "strideA2": 2,
+ "offsetA": 1,
+ "LDA": 2,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/column_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/column_major_zeros.json
new file mode 100644
index 000000000000..b544ba368326
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/column_major_zeros.json
@@ -0,0 +1,23 @@
+{
+ "order": "column-major",
+ "A": [
+ 9999.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 1,
+ "strideA2": 2,
+ "offsetA": 1,
+ "LDA": 2,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/row_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/row_major.json
new file mode 100644
index 000000000000..a711dc2ce270
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/row_major.json
@@ -0,0 +1,23 @@
+{
+ "order": "row-major",
+ "A": [
+ 9999.0,
+ 1.0,
+ 2.0,
+ 0.0,
+ 4.0,
+ 1.0,
+ 0.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "offsetA": 1,
+ "LDA": 3,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/row_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/row_major_zeros.json
new file mode 100644
index 000000000000..0beb43f62a9f
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/offsets/row_major_zeros.json
@@ -0,0 +1,23 @@
+{
+ "order": "row-major",
+ "A": [
+ 9999.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "offsetA": 1,
+ "LDA": 3,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/row_major.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/row_major.json
new file mode 100644
index 000000000000..820ab2f8010c
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/row_major.json
@@ -0,0 +1,15 @@
+{
+ "order": "row-major",
+ "A": [ 1.0, 2.0, 0.0, 4.0, 1.0, 0.0 ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "offsetA": 0,
+ "LDA": 3,
+ "A_mat": [
+ [ 1.0, 2.0, 0.0 ],
+ [ 4.0, 1.0, 0.0 ]
+ ],
+ "expected": 1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/row_major_zeros.json b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/row_major_zeros.json
new file mode 100644
index 000000000000..aaafc221b206
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/fixtures/row_major_zeros.json
@@ -0,0 +1,15 @@
+{
+ "order": "row-major",
+ "A": [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ],
+ "M": 2,
+ "N": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "offsetA": 0,
+ "LDA": 3,
+ "A_mat": [
+ [ 0.0, 0.0, 0.0 ],
+ [ 0.0, 0.0, 0.0 ]
+ ],
+ "expected": -1
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/test.iladlc.js b/lib/node_modules/@stdlib/lapack/base/iladlc/test/test.iladlc.js
new file mode 100644
index 000000000000..5abceac2236d
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/test.iladlc.js
@@ -0,0 +1,223 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 Float64Array = require( '@stdlib/array/float64' );
+var iladlc = require( './../lib/iladlc.js' );
+
+
+// FIXTURES //
+
+var ROW_MAJOR_DATA = require( './fixtures/row_major.json' );
+var ROW_MAJOR_ZEROS = require( './fixtures/row_major_zeros.json' );
+var COLUMN_MAJOR_DATA = require( './fixtures/column_major.json' );
+var COLUMN_MAJOR_ZEROS = require( './fixtures/column_major_zeros.json' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof iladlc, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 5', function test( t ) {
+ t.strictEqual( iladlc.length, 5, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function throws an error if provided a first argument which is not a valid order', function test( t ) {
+ var values;
+ var data;
+ var A;
+ var i;
+
+ data = ROW_MAJOR_DATA;
+
+ values = [
+ 'foo',
+ 'bar',
+ 'beep',
+ 'boop',
+ -5,
+ NaN,
+ true,
+ false,
+ null,
+ void 0,
+ [],
+ {},
+ function noop() {}
+ ];
+
+ A = new Float64Array( data.A );
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ iladlc( value, data.M, data.N, A, data.LDA );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided a fifth argument which is not a valid `LDA` value (row-major)', function test( t ) {
+ var values;
+ var data;
+ var A;
+ var i;
+
+ data = ROW_MAJOR_DATA;
+
+ values = [
+ 0,
+ 1
+ ];
+
+ A = new Float64Array( data.A );
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), RangeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ iladlc( data.order, data.M, data.N, A, value );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided a fifth argument which is not a valid `LDA` value (column-major)', function test( t ) {
+ var values;
+ var data;
+ var A;
+ var i;
+
+ data = COLUMN_MAJOR_DATA;
+
+ values = [
+ 0,
+ 1
+ ];
+
+ A = new Float64Array( data.A );
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), RangeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ iladlc( data.order, data.M, data.N, A, value );
+ };
+ }
+});
+
+tape( 'the function returns an invalid index (-1) when M is less than or equal to zero', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = ROW_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlc( data.order, 0, data.N, A, data.LDA );
+
+ t.deepEqual( out, -1, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when N is less than or equal to zero', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = ROW_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlc( data.order, data.M, 0, A, data.LDA );
+
+ t.deepEqual( out, -1, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (row-major)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = ROW_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlc( data.order, data.M, data.N, A, data.LDA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (column-major)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = COLUMN_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlc( data.order, data.M, data.N, A, data.LDA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (row-major)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = ROW_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlc( data.order, data.M, data.N, A, data.LDA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (column-major)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = COLUMN_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlc( data.order, data.M, data.N, A, data.LDA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/test.js b/lib/node_modules/@stdlib/lapack/base/iladlc/test/test.js
new file mode 100644
index 000000000000..1d911d3b6b33
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/test.js
@@ -0,0 +1,82 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 iladlc = 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 iladlc, '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 iladlc.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 iladlc = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( iladlc, 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 iladlc;
+ var main;
+
+ main = require( './../lib/iladlc.js' );
+
+ iladlc = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( iladlc, main, 'returns expected value' );
+ t.end();
+
+ function tryRequire() {
+ return new Error( 'Cannot find module' );
+ }
+});
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlc/test/test.ndarray.js b/lib/node_modules/@stdlib/lapack/base/iladlc/test/test.ndarray.js
new file mode 100644
index 000000000000..677173508ae2
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlc/test/test.ndarray.js
@@ -0,0 +1,349 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 max-len, id-length */
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var iladlr = require( './../lib/ndarray.js' );
+
+
+// FIXTURES //
+
+var ROW_MAJOR_DATA = require( './fixtures/row_major.json' );
+var ROW_MAJOR_ZEROS = require( './fixtures/row_major_zeros.json' );
+var COLUMN_MAJOR_DATA = require( './fixtures/column_major.json' );
+var COLUMN_MAJOR_ZEROS = require( './fixtures/column_major_zeros.json' );
+
+var OFFSET_ROW_MAJOR_DATA = require( './fixtures/offsets/row_major.json' );
+var OFFSET_ROW_MAJOR_ZEROS = require( './fixtures/offsets/row_major_zeros.json' );
+var OFFSET_COLUMN_MAJOR_DATA = require( './fixtures/offsets/column_major.json' );
+var OFFSET_COLUMN_MAJOR_ZEROS = require( './fixtures/offsets/column_major_zeros.json' );
+
+var NEGATIVE_STRIDES_ROW_MAJOR_DATA = require( './fixtures/negative_strides/row_major.json' );
+var NEGATIVE_STRIDES_ROW_MAJOR_ZEROS = require( './fixtures/negative_strides/row_major_zeros.json' );
+var NEGATIVE_STRIDES_COLUMN_MAJOR_DATA = require( './fixtures/negative_strides/column_major.json' );
+var NEGATIVE_STRIDES_COLUMN_MAJOR_ZEROS = require( './fixtures/negative_strides/column_major_zeros.json' );
+
+var MIXED_STRIDES_ROW_MAJOR_DATA = require( './fixtures/mixed_strides/row_major.json' );
+var MIXED_STRIDES_ROW_MAJOR_ZEROS = require( './fixtures/mixed_strides/row_major_zeros.json' );
+var MIXED_STRIDES_COLUMN_MAJOR_DATA = require( './fixtures/mixed_strides/column_major.json' );
+var MIXED_STRIDES_COLUMN_MAJOR_ZEROS = require( './fixtures/mixed_strides/column_major_zeros.json' );
+
+var LARGE_STRIDES_ROW_MAJOR_DATA = require( './fixtures/large_strides/row_major.json' );
+var LARGE_STRIDES_ROW_MAJOR_ZEROS = require( './fixtures/large_strides/row_major_zeros.json' );
+var LARGE_STRIDES_COLUMN_MAJOR_DATA = require( './fixtures/large_strides/column_major.json' );
+var LARGE_STRIDES_COLUMN_MAJOR_ZEROS = require( './fixtures/large_strides/column_major_zeros.json' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof iladlr, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 6', function test( t ) {
+ t.strictEqual( iladlr.length, 6, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (row-major)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = ROW_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (column-major)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = COLUMN_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (row-major)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = ROW_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (column-major)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = COLUMN_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (row-major) (offsets)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = OFFSET_ROW_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (column-major) (offsets)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = OFFSET_COLUMN_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (row-major) (offsets)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = OFFSET_ROW_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (column-major) (offsets)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = OFFSET_COLUMN_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (row-major) (mixed strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = MIXED_STRIDES_ROW_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (column-major) (mixed strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = MIXED_STRIDES_COLUMN_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (row-major) (mixed strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = MIXED_STRIDES_ROW_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (column-major) (mixed strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = MIXED_STRIDES_COLUMN_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (row-major) (negative strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = NEGATIVE_STRIDES_ROW_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (column-major) (negative strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = NEGATIVE_STRIDES_COLUMN_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (row-major) (negative strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = NEGATIVE_STRIDES_ROW_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (column-major) (negative strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = NEGATIVE_STRIDES_COLUMN_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (row-major) (large strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = LARGE_STRIDES_ROW_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the expected zero-based index of the last non-zero column of a matrix (column-major) (large strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = LARGE_STRIDES_COLUMN_MAJOR_DATA;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (row-major) (large strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = LARGE_STRIDES_ROW_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns an invalid index (-1) when all elements in a matrix are zero (column-major) (large strides)', function test( t ) {
+ var data;
+ var out;
+ var A;
+
+ data = LARGE_STRIDES_COLUMN_MAJOR_ZEROS;
+
+ A = new Float64Array( data.A );
+ out = iladlr( data.M, data.N, A, data.strideA1, data.strideA2, data.offsetA );
+
+ t.deepEqual( out, data.expected, 'returns expected value' );
+ t.end();
+});