From cbc4ab89aaa0cac32853d504c15647b2f2b9d13d Mon Sep 17 00:00:00 2001
From: Pranavchiku <goswami.4@iitj.ac.in>
Date: Sat, 31 Aug 2024 01:09:12 +0530
Subject: [PATCH 1/6] feat: add base implementation

---
 .../@stdlib/lapack/base/iladlr/lib/base.js    | 92 +++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/lib/base.js

diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/lib/base.js b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/base.js
new file mode 100644
index 00000000000..6a723d63dc2
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/base.js
@@ -0,0 +1,92 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 isRowMajor = require( '@stdlib/ndarray/base/assert/is-row-major' );
+var max = require( '@stdlib/math/base/special/fast/max' );
+
+
+// MAIN //
+
+/**
+* Returns last non-zero row of matrix `A`.
+*
+* @private
+* @param {NonNegativeInteger} M - number of rows
+* @param {NonNegativeInteger} N - number of columns
+* @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 - starting index for `A`
+* @returns {integer} index of last non-zero row
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var out;
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+*
+* out = iladlr( 2, 2, A, 2, 1, 0 );
+* // returns 1
+*/
+function iladlr( M, N, A, strideA1, strideA2, offsetA ) {
+	var out;
+	var i;
+	var j;
+
+	if ( M === 0 ) {
+		return 0;
+	}
+	if ( isRowMajor( [ strideA1, strideA2 ] ) ) {
+		if ( A[ offsetA + ( ( M - 1 ) * strideA1 ) ] !== 0.0 || A[ offsetA + ( ( M - 1 ) * strideA1 ) + ( ( N - 1 ) * strideA2 ) ] ) {
+			return M - 1;
+		}
+		// Scan up each column tracking the last zero row seen.
+		out = -1;
+		for ( j = 0; j < N; j++ ) {
+			i = M - 1;
+			while ( i >= 0 && A[ offsetA + ( i * strideA1 ) + ( j * strideA2 ) ] === 0.0 ) {
+				i -= 1;
+			}
+			out = max( out, i );
+		}
+		return out;
+	}
+	// column-major
+	if ( A[ offsetA + ( ( M - 1 ) * strideA2 ) ] !== 0.0 || A[ offsetA + ( ( M - 1 ) * strideA2 ) + ( ( N - 1 ) * strideA1 ) ] ) {
+		return M - 1;
+	}
+	// Scan up each column tracking the last zero row seen.
+	out = -1;
+	for ( j = 0; j < N; j++ ) {
+		i = M - 1;
+		while ( i >= 0 && A[ offsetA + ( i * strideA2 ) + ( j * strideA1 ) ] === 0.0 ) {
+			i -= 1;
+		}
+		out = max( out, i );
+	}
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = iladlr;

From 5c783d7bdc8af11e68861222246a835af1d4a707 Mon Sep 17 00:00:00 2001
From: Pranavchiku <goswami.4@iitj.ac.in>
Date: Mon, 2 Sep 2024 12:05:20 +0530
Subject: [PATCH 2/6] feat: add lib

---
 .../@stdlib/lapack/base/iladlr/lib/iladlr.js  | 69 +++++++++++++++++++
 .../@stdlib/lapack/base/iladlr/lib/main.js    | 35 ++++++++++
 .../@stdlib/lapack/base/iladlr/lib/ndarray.js | 56 +++++++++++++++
 3 files changed, 160 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/lib/iladlr.js
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/lib/main.js
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/lib/ndarray.js

diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/lib/iladlr.js b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/iladlr.js
new file mode 100644
index 00000000000..3c9fa21732e
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/iladlr.js
@@ -0,0 +1,69 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 format = require( '@stdlib/string/format' );
+var base = require( './base.js' );
+
+
+// MAIN //
+
+/**
+* Returns last non-zero row of matrix `A`.
+*
+* @param {string} order - storage layout
+* @param {NonNegativeInteger} M - number of rows
+* @param {NonNegativeInteger} N - number of columns
+* @param {Float64Array} A - input matrix
+* @param {PositiveInteger} 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
+* @returns {integer} index of last non-zero row
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var out;
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+*
+* out = iladlr( 'row-major', 2, 2, A, 2 );
+* // returns 1
+*/
+function iladlr( order, M, N, A, LDA ) {
+	var sa1;
+	var sa2;
+	if ( !isLayout( order ) ) {
+		throw new TypeError( format( 'invalid argument. First argument must be a valid order. Value: `%s`.', order ) );
+	}
+	if ( order === 'column-major' ) {
+		sa1 = 1;
+		sa2 = LDA;
+	} else { // order === 'row-major'
+		sa1 = LDA;
+		sa2 = 1;
+	}
+	return base( M, N, A, sa1, sa2, 0 );
+}
+
+
+// EXPORTS //
+
+module.exports = iladlr;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/lib/main.js b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/main.js
new file mode 100644
index 00000000000..4886cc6bee1
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/main.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 iladlr = require( './iladlr.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( iladlr, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = iladlr;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/lib/ndarray.js b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/ndarray.js
new file mode 100644
index 00000000000..820e85bc14a
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/ndarray.js
@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 //
+
+/**
+* Returns last non-zero row of matrix `A` using alternative indexing semantics.
+*
+* @name iladlr
+* @type {Function}
+* @param {NonNegativeInteger} M - number of rows
+* @param {NonNegativeInteger} N - number of columns
+* @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 - starting index for `A`
+* @throws {TypeError} first argument must be a valid order
+* @returns {integer} index of last non-zero row
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var out;
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+*
+* out = iladlr( 2, 2, A, 2, 1, 0 );
+* // returns 1
+*/
+var iladlr = base;
+
+
+// EXPORTS //
+
+module.exports = iladlr;

From b1ffa9b3425d18ee9e2dba4f543cc3dc979a2260 Mon Sep 17 00:00:00 2001
From: Pranavchiku <goswami.4@iitj.ac.in>
Date: Mon, 2 Sep 2024 13:16:31 +0530
Subject: [PATCH 3/6] docs: add readme

---
 .../@stdlib/lapack/base/iladlr/README.md      | 232 ++++++++++++++++++
 1 file changed, 232 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/README.md

diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/README.md b/lib/node_modules/@stdlib/lapack/base/iladlr/README.md
new file mode 100644
index 00000000000..e8cd6dad4fd
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/README.md
@@ -0,0 +1,232 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2024 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.
+
+-->
+
+# iladlr
+
+> Return last non-zero row of matrix `A`.
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var iladlr = require( '@stdlib/lapack/base/iladlr' );
+```
+
+#### iladlr( order, M, N, A, LDA )
+
+Returns last non-zero row of matrix `A`.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var out;
+var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+out = iladlr( 'row-major', 2, 2, A, 2 );
+// 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.
+
+<!-- eslint-disable stdlib/capitalized-comments -->
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+// Initial an array.
+var A0 = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
+
+// Create offset view.
+var A1 = new Float64Array( A0.buffer, A0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+var out = iladlr( 'row-major', 2, 2, A1, 2 );
+// out => 1
+```
+
+#### iladlr.ndarray( M, N, A, strideA1, strideA2, offsetA )
+
+Returns last non-zero row of matrix `A` using alternative indexing semantics.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var out;
+var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+out = iladlr.ndarray( 2, 2, A, 2, 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].
+-   **sa1**: stride of the first dimension of `A`.
+-   **sa2**: stride of the second dimension of `A`.
+-   **oa**: starting index for `A`.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameters support indexing semantics based on starting indices. For example,
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var out;
+var A = new Float64Array( [ 4.0, 3.0, 2.0, 4.0 ] );
+
+out = iladlr.ndarray( 2, 2, A, -2, -1, 3 );
+// returns 1
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="notes">
+
+## Notes
+
+-   `iladlr()` corresponds to the [LAPACK][lapack] routine [`iladlr`][lapack-iladlr].
+
+</section>
+
+<!-- /.notes -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+var iladlr = require( '@stdlib/lapack/base/iladlr' );
+
+var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+var out = iladlr( 'row-major', 2, 2, A, 2 );
+console.log( out );
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+TODO
+```
+
+#### TODO
+
+TODO.
+
+```c
+TODO
+```
+
+TODO
+
+```c
+TODO
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+### Examples
+
+```c
+TODO
+```
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+[lapack]: https://www.netlib.org/lapack/explore-html/
+
+[lapack-iladlr]: https://netlib.org/lapack/explore-html//da/d60/group__ilalr_gadb53a9bd5cc7a6e3bbca7bf4eca32208.html#gadb53a9bd5cc7a6e3bbca7bf4eca32208
+
+[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
+
+</section>
+
+<!-- /.links -->

From d363531fb809ce3ccd24b385d0264dccafddc49e Mon Sep 17 00:00:00 2001
From: Pranavchiku <goswami.4@iitj.ac.in>
Date: Mon, 2 Sep 2024 13:23:05 +0530
Subject: [PATCH 4/6] docs: add repl

---
 .../@stdlib/lapack/base/iladlr/docs/repl.txt  | 79 +++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/docs/repl.txt

diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/docs/repl.txt b/lib/node_modules/@stdlib/lapack/base/iladlr/docs/repl.txt
new file mode 100644
index 00000000000..fc0b937ce7d
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/docs/repl.txt
@@ -0,0 +1,79 @@
+
+{{alias}}( order, M, N, A, LDA )
+    Return last non-zero row of matrix `A`.
+
+    Indexing is relative to the first index. To introduce an offset, use typed
+    array views.
+
+    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`.
+
+    LDA: integer
+        Stride of the first dimension of `A` (a.k.a., leading dimension of the
+        matrix `A`).
+
+    Returns
+    -------
+    out: integer
+        Index of last non-zero row.
+
+    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, sa1, sa2, oa )
+    Returns last non-zero row of 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.
+
+    Parameters
+    ----------
+    M: integer
+        Number of rows in `A`.
+
+    N: integer
+        Number of columns in `A`.
+
+    A: Float64Array
+        Input matrix `A`.
+
+    sa1: integer
+        Stride of the first dimension of `A`.
+
+    sa2: integer
+        Stride of the second dimension of `A`.
+
+    oa: integer
+        Starting index for `A`.
+
+    Returns
+    -------
+    out: integer
+        Index of last non-zero row.
+
+    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
+    --------

From 45f9026671c7bc623be0c7999e9b7a5c84b77632 Mon Sep 17 00:00:00 2001
From: Pranavchiku <goswami.4@iitj.ac.in>
Date: Mon, 2 Sep 2024 16:37:45 +0530
Subject: [PATCH 5/6] feat: add other files

---
 .../@stdlib/lapack/base/iladlr/README.md      |   2 +-
 .../lapack/base/iladlr/benchmark/benchmark.js |  97 ++++++++
 .../iladlr/benchmark/benchmark.ndarray.js     |  97 ++++++++
 .../lapack/base/iladlr/docs/types/index.d.ts  | 108 +++++++++
 .../lapack/base/iladlr/docs/types/test.ts     | 215 ++++++++++++++++++
 .../lapack/base/iladlr/examples/index.js      |  26 +++
 .../@stdlib/lapack/base/iladlr/lib/index.js   |  68 ++++++
 .../@stdlib/lapack/base/iladlr/package.json   |  69 ++++++
 .../lapack/base/iladlr/test/test.iladlr.js    |  94 ++++++++
 .../@stdlib/lapack/base/iladlr/test/test.js   |  82 +++++++
 .../lapack/base/iladlr/test/test.ndarray.js   |  82 +++++++
 11 files changed, 939 insertions(+), 1 deletion(-)
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/benchmark/benchmark.js
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/benchmark/benchmark.ndarray.js
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/docs/types/index.d.ts
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/docs/types/test.ts
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/examples/index.js
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/lib/index.js
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/package.json
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/test/test.iladlr.js
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/test/test.js
 create mode 100644 lib/node_modules/@stdlib/lapack/base/iladlr/test/test.ndarray.js

diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/README.md b/lib/node_modules/@stdlib/lapack/base/iladlr/README.md
index e8cd6dad4fd..f861b4a3ec2 100644
--- a/lib/node_modules/@stdlib/lapack/base/iladlr/README.md
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/README.md
@@ -69,7 +69,7 @@ var out = iladlr( 'row-major', 2, 2, A1, 2 );
 // out => 1
 ```
 
-#### iladlr.ndarray( M, N, A, strideA1, strideA2, offsetA )
+#### iladlr.ndarray( M, N, A, sa1, sa2, oa )
 
 Returns last non-zero row of matrix `A` using alternative indexing semantics.
 
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/benchmark/benchmark.js b/lib/node_modules/@stdlib/lapack/base/iladlr/benchmark/benchmark.js
new file mode 100644
index 00000000000..0a0427b672f
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/benchmark/benchmark.js
@@ -0,0 +1,97 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var floor = require( '@stdlib/math/base/special/floor' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var pkg = require( './../package.json' ).name;
+var iladlr = require( './../lib/iladlr.js' );
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var A = uniform( len * len, -100.0, 100.0, options );
+	return benchmark;
+
+	function benchmark( b ) {
+		var out;
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			out = iladlr( 'row-major', len, len, A, len );
+			if ( isnan( out ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnan( out ) ) {
+			b.fail( 'should not return NaN' );
+		}
+		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 = floor( pow( pow( 10, i ), 0.5 ) );
+		f = createBenchmark( len );
+		bench( pkg+':order=row-major,len='+len, f );
+	}
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/lapack/base/iladlr/benchmark/benchmark.ndarray.js
new file mode 100644
index 00000000000..7a648a9af37
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/benchmark/benchmark.ndarray.js
@@ -0,0 +1,97 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var floor = require( '@stdlib/math/base/special/floor' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var pkg = require( './../package.json' ).name;
+var iladlr = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var A = uniform( len * len, -100.0, 100.0, options );
+	return benchmark;
+
+	function benchmark( b ) {
+		var out;
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			out = iladlr( len, len, A, len, 1, 0 );
+			if ( isnan( out ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnan( out ) ) {
+			b.fail( 'should not return NaN' );
+		}
+		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 = floor( pow( pow( 10, i ), 0.5 ) );
+		f = createBenchmark( len );
+		bench( pkg+':ndarray:order=row-major,len='+len, f );
+	}
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/docs/types/index.d.ts b/lib/node_modules/@stdlib/lapack/base/iladlr/docs/types/index.d.ts
new file mode 100644
index 00000000000..bb072eb5fc3
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/docs/types/index.d.ts
@@ -0,0 +1,108 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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
+
+/// <reference types="@stdlib/types"/>
+
+import { Layout } from '@stdlib/types/blas';
+
+/**
+* Interface describing `iladlr`.
+*/
+interface Routine {
+	/**
+	* Returns last non-zero row of matrix `A`.
+	*
+	* @param order - storage layout
+	* @param M - number of rows
+	* @param N - number of columns
+	* @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 last non-zero row
+	*
+	* @example
+	* var Float64Array = require( '@stdlib/array/float64' );
+	*
+	* var out;
+	* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+	*
+	* out = iladlr( 'row-major', 2, 2, A, 2 );
+	* // returns 1
+	*/
+	( order: Layout, M: number, N: number, A: Float64Array, LDA: number ): number;
+
+	/**
+	* Returns last non-zero row of matrix `A` using alternative indexing semantics.
+	*
+	* @name iladlr.ndarray
+	* @type {Function}
+	* @param M - number of rows
+	* @param N - number of columns
+	* @param A - input matrix
+	* @param strideA1 - stride of the first dimension of `A`
+	* @param strideA2 - stride of the second dimension of `A`
+	* @param offsetA - starting index for `A`
+	* @returns index of last non-zero row
+	*
+	* @example
+	* var Float64Array = require( '@stdlib/array/float64' );
+	*
+	* var out;
+	* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+	*
+	* out = iladlr.ndarray( 2, 2, A, 2, 1, 0 );
+	* // returns 1
+	*/
+	ndarray( M: number, N: number, A: Float64Array, strideA1: number, strideA2: number, offsetA: number ): number;
+}
+
+/**
+* Returns last non-zero row of matrix `A`.
+*
+* @param order - storage layout
+* @param M - number of rows
+* @param N - number of columns
+* @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 last non-zero row
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var out;
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+*
+* out = iladlr( 'row-major', 2, 2, A, 2 );
+* // returns 1
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var out;
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+*
+* out = iladlr.ndarray( 2, 2, A, 2, 1, 0 );
+* // returns 1
+*/
+declare var iladlr: Routine;
+
+
+// EXPORTS //
+
+export = iladlr;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/docs/types/test.ts b/lib/node_modules/@stdlib/lapack/base/iladlr/docs/types/test.ts
new file mode 100644
index 00000000000..647ec630184
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/docs/types/test.ts
@@ -0,0 +1,215 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 iladlr = require( './index' );
+
+
+// TESTS //
+
+// The function returns a Float64Array...
+{
+	const A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr( '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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr( 5, 2, 2, A, 2 ); // $ExpectError
+	iladlr( true, 2, 2, A, 2 ); // $ExpectError
+	iladlr( false, 2, 2, A, 2 ); // $ExpectError
+	iladlr( null, 2, 2, A, 2 ); // $ExpectError
+	iladlr( void 0, 2, 2, A, 2 ); // $ExpectError
+	iladlr( [], 2, 2, A, 2 ); // $ExpectError
+	iladlr( {}, 2, 2, A, 2 ); // $ExpectError
+	iladlr( ( 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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr( 'row-major', '5', 2, A, 2 ); // $ExpectError
+	iladlr( 'row-major', true, 2, A, 2 ); // $ExpectError
+	iladlr( 'row-major', false, 2, A, 2 ); // $ExpectError
+	iladlr( 'row-major', null, 2, A, 2 ); // $ExpectError
+	iladlr( 'row-major', void 0, 2, A, 2 ); // $ExpectError
+	iladlr( 'row-major', [], 2, A, 2 ); // $ExpectError
+	iladlr( 'row-major', {}, 2, A, 2 ); // $ExpectError
+	iladlr( '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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr( 'row-major', 2, '5', A, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, true, A, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, false, A, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, null, A, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, void 0, A, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, [], A, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, {}, A, 2 ); // $ExpectError
+	iladlr( '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...
+{
+
+	iladlr( 'row-major', 2, 2, '5', 2 ); // $ExpectError
+	iladlr( 'row-major', 2, 2, 5, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, 2, true, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, 2, false, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, 2, null, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, 2, void 0, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, 2, [], 2 ); // $ExpectError
+	iladlr( 'row-major', 2, 2, {}, 2 ); // $ExpectError
+	iladlr( '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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr( 'row-major', 2, 2, A, '5' ); // $ExpectError
+	iladlr( 'row-major', 2, 2, A, true ); // $ExpectError
+	iladlr( 'row-major', 2, 2, A, false ); // $ExpectError
+	iladlr( 'row-major', 2, 2, A, null ); // $ExpectError
+	iladlr( 'row-major', 2, 2, A, void 0 ); // $ExpectError
+	iladlr( 'row-major', 2, 2, A, [] ); // $ExpectError
+	iladlr( 'row-major', 2, 2, A, {} ); // $ExpectError
+	iladlr( '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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr(); // $ExpectError
+	iladlr( 'row-major' ); // $ExpectError
+	iladlr( 'row-major', 2 ); // $ExpectError
+	iladlr( 'row-major', 2, 2 ); // $ExpectError
+	iladlr( 'row-major', 2, 2, A ); // $ExpectError
+	iladlr( 'row-major', 2, 2, A, 2, 10 ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a Float64Array...
+{
+	const A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr.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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr.ndarray( '5', 2, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( true, 2, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( false, 2, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( null, 2, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( void 0, 2, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( [], 2, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( {}, 2, A, 2, 1, 0 ); // $ExpectError
+	iladlr.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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr.ndarray( 2, '5', A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, true, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, false, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, null, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, void 0, A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, [], A, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, {}, A, 2, 1, 0 ); // $ExpectError
+	iladlr.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...
+{
+
+	iladlr.ndarray( 2, 2, '5', 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, 5, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, true, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, false, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, null, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, void 0, 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, [], 2, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, {}, 2, 1, 0 ); // $ExpectError
+	iladlr.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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr.ndarray( 2, 2, A, '5', 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, true, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, false, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, null, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, void 0, 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, [], 1, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, {}, 1, 0 ); // $ExpectError
+	iladlr.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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr.ndarray( 2, 2, A, 2, '5', 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, true, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, false, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, null, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, void 0, 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, [], 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, {}, 0 ); // $ExpectError
+	iladlr.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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr.ndarray( 2, 2, A, 2, 1, '5' ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, 1, true ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, 1, false ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, 1, null ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, 1, void 0 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, 1, [] ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, 1, {} ); // $ExpectError
+	iladlr.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( [ 1.0, 2.0, 3.0, 4.0 ] );
+
+	iladlr.ndarray(); // $ExpectError
+	iladlr.ndarray( 2 ); // $ExpectError
+	iladlr.ndarray( 2, 2 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, 1 ); // $ExpectError
+	iladlr.ndarray( 2, 2, A, 2, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/examples/index.js b/lib/node_modules/@stdlib/lapack/base/iladlr/examples/index.js
new file mode 100644
index 00000000000..2f619cab53f
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/examples/index.js
@@ -0,0 +1,26 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 Float64Array = require( '@stdlib/array/float64' );
+var iladlr = require( './../lib' );
+
+var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+var out = iladlr( 'row-major', 2, 2, A, 2 );
+console.log( out );
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/lib/index.js b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/index.js
new file mode 100644
index 00000000000..5d85ba84dbd
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/index.js
@@ -0,0 +1,68 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 return last non-zero row of matrix `A`.
+*
+* @module @stdlib/lapack/base/iladlr
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var iladlr = require( '@stdlib/lapack/base/iladlr' );
+*
+* var out;
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+*
+* out = iladlr( 'row-major', 2, 2, A, 2 );
+* // returns 1
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var iladlr = require( '@stdlib/lapack/base/iladlr' );
+*
+* var out;
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+*
+* out = iladlr.ndarray( 2, 2, A, 2, 1, 0 );
+* // 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 iladlr;
+var tmp = tryRequire( join( __dirname, './native.js' ) );
+if ( isError( tmp ) ) {
+	iladlr = main;
+} else {
+	iladlr = tmp;
+}
+
+
+// EXPORTS //
+
+module.exports = iladlr;
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/package.json b/lib/node_modules/@stdlib/lapack/base/iladlr/package.json
new file mode 100644
index 00000000000..7f1cc8a9bd3
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/package.json
@@ -0,0 +1,69 @@
+{
+  "name": "@stdlib/lapack/base/iladlr",
+  "version": "0.0.0",
+  "description": "Return last non-zero row of matrix `A`.",
+  "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",
+    "iladlr",
+    "triangular",
+    "matrix",
+    "linear",
+    "algebra",
+    "subroutines",
+    "array",
+    "ndarray",
+    "float64",
+    "double",
+    "float64array"
+  ]
+}
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/test/test.iladlr.js b/lib/node_modules/@stdlib/lapack/base/iladlr/test/test.iladlr.js
new file mode 100644
index 00000000000..e01031be311
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/test/test.iladlr.js
@@ -0,0 +1,94 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 iladlr = require( './../lib/iladlr.js' );
+
+
+// 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 5', function test( t ) {
+	t.strictEqual( iladlr.length, 5, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function throws an error if provided an invalid first argument', function test( t ) {
+	var values;
+	var A;
+	var i;
+
+	values = [
+		'foo',
+		'bar',
+		'beep',
+		'boop',
+		5,
+		true,
+		false
+	];
+
+	A = new Float64Array( [ 1.0, 2.0, 0.0, 4.0 ] );
+
+	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() {
+			iladlr( value, 2, 2, A, 2 );
+		};
+	}
+});
+
+tape( 'the function correctly determines the last non-zero row of a matrix', function test( t ) {
+	var out;
+	var A;
+
+	A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+	out = iladlr( 'row-major', 2, 2, A, 2 );
+	t.strictEqual( out, 1, 'returns expected value' );
+
+	out = iladlr( 'column-major', 2, 2, A, 1 );
+	t.strictEqual( out, 1, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function correctly determines the last non-zero row of a matrix', function test( t ) {
+	var out;
+	var A;
+
+	A = new Float64Array( [ 0.0, 2.0, 3.0, 0.0, 0.0, 0.0 ] );
+	out = iladlr( 'row-major', 2, 3, A, 3 );
+	t.strictEqual( out, 0, 'returns expected value' );
+
+	out = iladlr( 'column-major', 2, 3, A, 1 );
+	t.strictEqual( out, 1, 'returns expected value' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/test/test.js b/lib/node_modules/@stdlib/lapack/base/iladlr/test/test.js
new file mode 100644
index 00000000000..91d2b8a57e4
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/test/test.js
@@ -0,0 +1,82 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 iladlr = 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 iladlr, '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 iladlr.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 iladlr = proxyquire( './../lib', {
+		'@stdlib/utils/try-require': tryRequire
+	});
+
+	t.strictEqual( iladlr, 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 iladlr;
+	var main;
+
+	main = require( './../lib/iladlr.js' );
+
+	iladlr = proxyquire( './../lib', {
+		'@stdlib/utils/try-require': tryRequire
+	});
+
+	t.strictEqual( iladlr, main, 'returns expected value' );
+	t.end();
+
+	function tryRequire() {
+		return new Error( 'Cannot find module' );
+	}
+});
diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/test/test.ndarray.js b/lib/node_modules/@stdlib/lapack/base/iladlr/test/test.ndarray.js
new file mode 100644
index 00000000000..b88bf36ef3e
--- /dev/null
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/test/test.ndarray.js
@@ -0,0 +1,82 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 iladlr = require( './../lib/ndarray.js' );
+
+
+// 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 supports accessing elements from non-contiguous order of row and columns', function test( t ) {
+	var out;
+	var A;
+
+	/* eslint-disable array-element-newline, no-multi-spaces */
+
+	A = new Float64Array([
+		999, 999, 999, 999, 999, 999,
+		999,   1, 999,   2, 999,   3,
+		999, 999, 999, 999, 999, 999,
+		999,   0, 999,   4, 999,   5,
+		999, 999, 999, 999, 999, 999,
+		999,   0, 999,   0, 999,   0,
+		999, 999, 999, 999, 999, 999
+	]);
+
+	/* eslint-enable array-element-newline, no-multi-spaces */
+	out = iladlr( 3, 3, A, 12, 2, 7 );
+	t.strictEqual( out, 1, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports accessing elements from non-contiguous order of row and columns and in different order', function test( t ) {
+	var out;
+	var A;
+
+	/* eslint-disable array-element-newline, no-multi-spaces */
+
+	A = new Float64Array([
+		999, 999, 999, 999, 999, 999,
+		999,   1, 999,   2, 999,   3,
+		999, 999, 999, 999, 999, 999,
+		999,   0, 999,   4, 999,   5,
+		999, 999, 999, 999, 999, 999,
+		999,   0, 999,   0, 999,   0
+	]);
+
+	/* eslint-enable array-element-newline, no-multi-spaces */
+	out = iladlr( 3, 3, A, -12, -2, A.length-1 );
+	t.strictEqual( out, 2, 'returns expected value' );
+	t.end();
+});

From 00b131a9b552fab00d884f610fce4a8c853e929f Mon Sep 17 00:00:00 2001
From: Pranavchiku <goswami.4@iitj.ac.in>
Date: Mon, 2 Sep 2024 16:41:09 +0530
Subject: [PATCH 6/6] refactor: base implementation

---
 .../@stdlib/lapack/base/iladlr/lib/base.js    | 30 ++++++++-----------
 1 file changed, 12 insertions(+), 18 deletions(-)

diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/lib/base.js b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/base.js
index 6a723d63dc2..13320164fc0 100644
--- a/lib/node_modules/@stdlib/lapack/base/iladlr/lib/base.js
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/base.js
@@ -49,36 +49,30 @@ var max = require( '@stdlib/math/base/special/fast/max' );
 */
 function iladlr( M, N, A, strideA1, strideA2, offsetA ) {
 	var out;
+	var sa0;
+	var sa1;
 	var i;
 	var j;
 
+	if ( isRowMajor( [ strideA1, strideA2 ] ) ) {
+		sa0 = strideA1;
+		sa1 = strideA2;
+	} else {
+		sa0 = strideA2;
+		sa1 = strideA1;
+	}
+
 	if ( M === 0 ) {
 		return 0;
 	}
-	if ( isRowMajor( [ strideA1, strideA2 ] ) ) {
-		if ( A[ offsetA + ( ( M - 1 ) * strideA1 ) ] !== 0.0 || A[ offsetA + ( ( M - 1 ) * strideA1 ) + ( ( N - 1 ) * strideA2 ) ] ) {
-			return M - 1;
-		}
-		// Scan up each column tracking the last zero row seen.
-		out = -1;
-		for ( j = 0; j < N; j++ ) {
-			i = M - 1;
-			while ( i >= 0 && A[ offsetA + ( i * strideA1 ) + ( j * strideA2 ) ] === 0.0 ) {
-				i -= 1;
-			}
-			out = max( out, i );
-		}
-		return out;
-	}
-	// column-major
-	if ( A[ offsetA + ( ( M - 1 ) * strideA2 ) ] !== 0.0 || A[ offsetA + ( ( M - 1 ) * strideA2 ) + ( ( N - 1 ) * strideA1 ) ] ) {
+	if ( A[ offsetA + ( ( M - 1 ) * sa0 ) ] !== 0.0 || A[ offsetA + ( ( M - 1 ) * sa0 ) + ( ( N - 1 ) * sa1 ) ] ) {
 		return M - 1;
 	}
 	// Scan up each column tracking the last zero row seen.
 	out = -1;
 	for ( j = 0; j < N; j++ ) {
 		i = M - 1;
-		while ( i >= 0 && A[ offsetA + ( i * strideA2 ) + ( j * strideA1 ) ] === 0.0 ) {
+		while ( i >= 0 && A[ offsetA + ( i * sa0 ) + ( j * sa1 ) ] === 0.0 ) {
 			i -= 1;
 		}
 		out = max( out, i );