diff --git a/lib/node_modules/@stdlib/array/fixed-endian-factory/README.md b/lib/node_modules/@stdlib/array/fixed-endian-factory/README.md
index 985e4560ca9b..3e758ed1ffb6 100644
--- a/lib/node_modules/@stdlib/array/fixed-endian-factory/README.md
+++ b/lib/node_modules/@stdlib/array/fixed-endian-factory/README.md
@@ -229,6 +229,27 @@ var len = arr.length;
### Typed Array Methods
+
+
+#### TypedArrayFE.prototype.copyWithin( target, start\[, end] )
+
+Copies a sequence of elements within the array starting at `start` and ending at `end` (non-inclusive) to the position starting at `target`.
+
+```javascript
+var Float64ArrayFE = fixedEndianFactory( 'float64' );
+
+var arr = new Float64ArrayFE( 'little-endian', [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
+
+arr.copyWithin( 0, 3 );
+
+var out = arr.get( 0 );
+// returns 4.0
+
+out = arr.get( 1 );
+// returns 5.0
+```
+
+
#### TypedArrayFE.from( endianness, src\[, map\[, thisArg]] )
diff --git a/lib/node_modules/@stdlib/array/fixed-endian-factory/benchmark/benchmark.copy_within.js b/lib/node_modules/@stdlib/array/fixed-endian-factory/benchmark/benchmark.copy_within.js
new file mode 100644
index 000000000000..9c1068b28fec
--- /dev/null
+++ b/lib/node_modules/@stdlib/array/fixed-endian-factory/benchmark/benchmark.copy_within.js
@@ -0,0 +1,54 @@
+/**
+* @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 factory = require( './../lib' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var Float64ArrayFE = factory( 'float64' );
+
+
+// MAIN //
+
+bench( pkg+':copyWithin', function benchmark( b ) {
+ var arr;
+ var i;
+
+ arr = new Float64ArrayFE( 'little-endian', [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] );
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ arr.copyWithin( 0, 6 );
+ if ( arr.get( 0 ) !== 7.0 ) {
+ b.fail( 'unexpected result' );
+ }
+ }
+ b.toc();
+ if ( arr.at( 0 ) !== arr.at( 0 ) ) {
+ b.fail( 'should not be NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+});
diff --git a/lib/node_modules/@stdlib/array/fixed-endian-factory/benchmark/benchmark_copy_within.length.js b/lib/node_modules/@stdlib/array/fixed-endian-factory/benchmark/benchmark_copy_within.length.js
new file mode 100644
index 000000000000..f837bab5a029
--- /dev/null
+++ b/lib/node_modules/@stdlib/array/fixed-endian-factory/benchmark/benchmark_copy_within.length.js
@@ -0,0 +1,98 @@
+/**
+* @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 pow = require( '@stdlib/math/base/special/pow' );
+var pkg = require( './../package.json' ).name;
+var factory = require( './../lib' );
+
+
+// VARIABLES //
+
+var Float64ArrayFE = factory( 'float64' );
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ return function benchmark( b ) {
+ var arr;
+ var i;
+
+ function generateArray( len ) {
+ return new Array( len ).fill( 0 ).map(function mapFn( _, idx ) {
+ return idx + 1;
+ });
+ }
+
+ arr = new Float64ArrayFE( 'little-endian', generateArray( len ) );
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ arr.copyWithin( 0, len - 1 );
+ if ( arr.get( 0 ) !== len ) {
+ b.fail( 'unexpected result' );
+ }
+ }
+ b.toc();
+ if ( arr.at( 0 ) !== arr.at( 0 ) ) {
+ b.fail( 'should not be 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 = pow( 10, i );
+ f = createBenchmark( len );
+ bench( pkg + ':copyWithin:len=' + len, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/array/fixed-endian-factory/lib/main.js b/lib/node_modules/@stdlib/array/fixed-endian-factory/lib/main.js
index d15a80bf7da2..4f7ee04f723e 100644
--- a/lib/node_modules/@stdlib/array/fixed-endian-factory/lib/main.js
+++ b/lib/node_modules/@stdlib/array/fixed-endian-factory/lib/main.js
@@ -44,6 +44,8 @@ var contains = require( '@stdlib/array/base/assert/contains' ).factory;
var bytesPerElement = require( '@stdlib/ndarray/base/bytes-per-element' );
var capitalize = require( '@stdlib/string/base/capitalize' );
var format = require( '@stdlib/string/format' );
+var max = require( '@stdlib/math/base/special/max' );
+var min = require( '@stdlib/math/base/special/min' );
var fromIterator = require( './from_iterator.js' );
var fromIteratorMap = require( './from_iterator_map.js' );
@@ -488,6 +490,92 @@ function factory( dtype ) { // eslint-disable-line max-lines-per-function, stdli
return this._buffer[ GETTER ]( idx * BYTES_PER_ELEMENT, this._isLE );
});
+ /**
+ * Copies a sequence of array elements from `start` to `end` within the array to the position starting at `target`.
+ *
+ * @private
+ * @name copyWithin
+ * @memberof TypedArray.prototype
+ * @type {Function}
+ * @param {integer} target - index at which to copy the sequence to
+ * @param {integer} start - index at which to start copying the sequence from
+ * @param {integer} end - index at which to end copying the sequence (optional)
+ * @throws {TypeError} `this` is not a typed array
+ * @throws {TypeError} `target` must be an integer
+ * @throws {TypeError} `start` must be an integer
+ * @throws {TypeError} `end` must be an integer
+ * @returns {void}
+ */
+ setReadOnly( TypedArray.prototype, 'copyWithin', function copyWithin( target, start ) {
+ var copyDirection;
+ var len;
+ var end;
+ var cnt;
+ var buf;
+
+ if ( !isTypedArray( this ) ) {
+ throw new TypeError( format( 'invalid invocation. `this` is not %s %s.', CHAR2ARTICLE[ dtype[0] ], CTOR_NAME ) );
+ }
+ if ( arguments.length < 2 || arguments.length > 3 ) {
+ throw new TypeError( format( 'invalid invocation. Unsupported number of arguments. Value: `%s`.', arguments.length ) );
+ }
+ if ( !isInteger( target ) ) {
+ throw new TypeError( format( 'invalid argument. Must provide an integer. Value: `%s`.', target ) );
+ }
+ if ( !isInteger( start ) ) {
+ throw new TypeError( format( 'invalid argument. Must provide an integer. Value: `%s`.', start ) );
+ }
+
+ len = this._length;
+
+ if ( target >= len || start >= len ) {
+ return;
+ }
+
+ if ( arguments.length === 3 ) {
+ end = arguments[ 2 ];
+ if ( !isInteger( end ) ) {
+ throw new TypeError( format( 'invalid argument. Must provide an integer. Value: `%s`.', end ) );
+ }
+ if ( end < 0 ) {
+ end = max(len + end, 0);
+ }
+ end = min( end, len );
+ } else {
+ end = len;
+ }
+
+ if ( target < 0 ) {
+ target = max(len + target, 0);
+ }
+ if ( start < 0 ) {
+ start = max(len + start, 0);
+ }
+
+ cnt = min( end - start, len - target );
+
+ if ( cnt <= 0 ) {
+ return;
+ }
+
+ buf = this._buffer;
+
+ if ( start < target && target < ( start + cnt ) ) {
+ copyDirection = -1;
+ start = start + cnt - 1;
+ target = target + cnt - 1;
+ } else {
+ copyDirection = 1;
+ }
+
+ while ( cnt > 0 ) {
+ buf[ SETTER ]( target*BYTES_PER_ELEMENT, buf[ GETTER ]( start*BYTES_PER_ELEMENT, this._isLE ), this._isLE );
+ target += copyDirection;
+ start += copyDirection;
+ cnt -= 1;
+ }
+ });
+
/**
* Pointer to the underlying data buffer.
*
diff --git a/lib/node_modules/@stdlib/array/fixed-endian-factory/test/test.copy_within.js b/lib/node_modules/@stdlib/array/fixed-endian-factory/test/test.copy_within.js
new file mode 100644
index 000000000000..c0e93a2da765
--- /dev/null
+++ b/lib/node_modules/@stdlib/array/fixed-endian-factory/test/test.copy_within.js
@@ -0,0 +1,322 @@
+/**
+* @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 hasOwnProp = require( '@stdlib/assert/has-own-property' );
+var isFunction = require( '@stdlib/assert/is-function' );
+var factory = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof factory, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function returns a function', function test( t ) {
+ var ctor = factory( 'float64' );
+ t.strictEqual( isFunction( ctor ), true, 'returns expected value' );
+ t.end();
+});
+
+tape( 'attached to the prototype of the returned function is an `copyWithin` method', function test( t ) {
+ var ctor = factory( 'float64' );
+ t.strictEqual( hasOwnProp( ctor.prototype, 'copyWithin' ), true, 'returns expected value' );
+ t.strictEqual( isFunction( ctor.prototype.at ), true, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the method throws an error if invoked with a `this` context which is not a typed array instance', function test( t ) {
+ var values;
+ var ctor;
+ var arr;
+ var i;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', 5 );
+
+ values = [
+ '5',
+ 5,
+ NaN,
+ true,
+ false,
+ null,
+ void 0,
+ {},
+ [],
+ function noop() {}
+ ];
+ 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() {
+ return arr.copyWithin.call( value, 0, 2 );
+ };
+ }
+});
+
+tape( 'the method throws an error if provided an `target` argument which is not an integer', function test( t ) {
+ var values;
+ var ctor;
+ var arr;
+ var i;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', [ 1.0, 2.0, 3.0, 4.0 ] );
+
+ values = [
+ '5',
+ 3.14,
+ NaN,
+ true,
+ false,
+ null,
+ void 0,
+ {},
+ [],
+ function noop() {}
+ ];
+ 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() {
+ return arr.copyWithin( value, 0 );
+ };
+ }
+});
+
+tape( 'the method throws an error if provided an `start` argument which is not an integer', function test( t ) {
+ var values;
+ var ctor;
+ var arr;
+ var i;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', [ 1.0, 2.0, 3.0, 4.0 ] );
+
+ values = [
+ '5',
+ 3.14,
+ NaN,
+ true,
+ false,
+ null,
+ void 0,
+ {},
+ [],
+ function noop() {}
+ ];
+ 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() {
+ return arr.copyWithin( 0, value );
+ };
+ }
+});
+
+tape( 'the method throws an error if provided an `end` argument which is not an integer', function test( t ) {
+ var values;
+ var ctor;
+ var arr;
+ var i;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', [ 1.0, 2.0, 3.0, 4.0 ] );
+
+ values = [
+ '5',
+ 3.14,
+ NaN,
+ true,
+ false,
+ null,
+ void 0,
+ {},
+ [],
+ function noop() {}
+ ];
+ 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() {
+ return arr.copyWithin( 0, 1, value );
+ };
+ }
+});
+
+tape( 'the method copies a sequence of elements within an array', function test( t ) {
+ var ctor;
+ var arr;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] );
+
+ arr.copyWithin( 0, 5 );
+
+ // Overwritten:
+ t.strictEqual( arr.get( 0 ), 6.0, 'returns expected value' );
+ t.strictEqual( arr.get( 1 ), 7.0, 'returns expected value' );
+
+ // // Remain the same:
+ t.strictEqual( arr.get( 2 ), 3.0, 'returns expected value' );
+ t.strictEqual( arr.get( 3 ), 4.0, 'returns expected value' );
+ t.strictEqual( arr.get( 4 ), 5.0, 'returns expected value' );
+ t.strictEqual( arr.get( 5 ), 6.0, 'returns expected value' );
+ t.strictEqual( arr.get( 6 ), 7.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the method copies a sequence of elements within an array (negative target)', function test( t ) {
+ var ctor;
+ var arr;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] );
+
+ arr.copyWithin( -arr.length, 5 );
+
+ // Overwritten:
+ t.strictEqual( arr.get( 0 ), 6.0, 'returns expected value' );
+ t.strictEqual( arr.get( 1 ), 7.0, 'returns expected value' );
+
+ // Remain the same:
+ t.strictEqual( arr.get( 2 ), 3.0, 'returns expected value' );
+ t.strictEqual( arr.get( 3 ), 4.0, 'returns expected value' );
+ t.strictEqual( arr.get( 4 ), 5.0, 'returns expected value' );
+ t.strictEqual( arr.get( 5 ), 6.0, 'returns expected value' );
+ t.strictEqual( arr.get( 6 ), 7.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the method copies a sequence of elements within an array (negative start)', function test( t ) {
+ var ctor;
+ var arr;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] );
+
+ arr.copyWithin( 0, -2 );
+
+ // Overwritten:
+ t.strictEqual( arr.get( 0 ), 6.0, 'returns expected value' );
+ t.strictEqual( arr.get( 1 ), 7.0, 'returns expected value' );
+
+ // Remain the same:
+ t.strictEqual( arr.get( 2 ), 3.0, 'returns expected value' );
+ t.strictEqual( arr.get( 3 ), 4.0, 'returns expected value' );
+ t.strictEqual( arr.get( 4 ), 5.0, 'returns expected value' );
+ t.strictEqual( arr.get( 5 ), 6.0, 'returns expected value' );
+ t.strictEqual( arr.get( 6 ), 7.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the method copies a sequence of elements within an array (end=length)', function test( t ) {
+ var ctor;
+ var arr;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] );
+
+ arr.copyWithin( 0, 5, arr.length );
+
+ // Overwritten:
+ t.strictEqual( arr.get( 0 ), 6.0, 'returns expected value' );
+ t.strictEqual( arr.get( 1 ), 7.0, 'returns expected value' );
+
+ // Remain the same:
+ t.strictEqual( arr.get( 2 ), 3.0, 'returns expected value' );
+ t.strictEqual( arr.get( 3 ), 4.0, 'returns expected value' );
+ t.strictEqual( arr.get( 4 ), 5.0, 'returns expected value' );
+ t.strictEqual( arr.get( 5 ), 6.0, 'returns expected value' );
+ t.strictEqual( arr.get( 6 ), 7.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the method copies a sequence of elements within an array (non-inclusive end)', function test( t ) {
+ var ctor;
+ var arr;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] );
+
+ arr.copyWithin( 2, 0, 2 );
+
+ // Remain the same:
+ t.strictEqual( arr.get( 0 ), 1.0, 'returns expected value' );
+ t.strictEqual( arr.get( 1 ), 2.0, 'returns expected value' );
+
+ // Overwritten:
+ t.strictEqual( arr.get( 2 ), 1.0, 'returns expected value' );
+ t.strictEqual( arr.get( 3 ), 2.0, 'returns expected value' );
+
+ // Remain the same:
+ t.strictEqual( arr.get( 4 ), 5.0, 'returns expected value' );
+ t.strictEqual( arr.get( 5 ), 6.0, 'returns expected value' );
+ t.strictEqual( arr.get( 6 ), 7.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the method copies a sequence of elements within an array (negative end)', function test( t ) {
+ var ctor;
+ var arr;
+
+ ctor = factory( 'float64' );
+ arr = new ctor( 'little-endian', [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] );
+
+ arr.copyWithin( 2, 0, -3 );
+
+ // Remain the same:
+ t.strictEqual( arr.get( 0 ), 1.0, 'returns expected value' );
+ t.strictEqual( arr.get( 1 ), 2.0, 'returns expected value' );
+
+ // Overwritten:
+ t.strictEqual( arr.get( 2 ), 1.0, 'returns expected value' );
+ t.strictEqual( arr.get( 3 ), 2.0, 'returns expected value' );
+
+ // Remain the same:
+ t.strictEqual( arr.get( 4 ), 3.0, 'returns expected value' );
+ t.strictEqual( arr.get( 5 ), 4.0, 'returns expected value' );
+ t.strictEqual( arr.get( 6 ), 7.0, 'returns expected value' );
+
+ t.end();
+});