feat: add blas/base/dcabs1

lib/node_modules/@stdlib/blas/base/dcabs1/README.md

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+<!--
+
+@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.
+
+-->
+
+# dcabs1
+
+> Compute the sum of the [absolute values][absolute-value] of the real part and imaginary components of a double-precision [complex][@stdlib/complex/float64/ctor] floating-point number.
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var dcabs1 = require( '@stdlib/blas/base/dcabs1' );
+```
+
+#### dcabs1( z )
+
+Computes the sum of the [absolute values][absolute-value] of the real part and imaginary components of a double-precision [complex][@stdlib/complex/float64/ctor] floating-point number.
+
+```javascript
+var Complex128 = require( '@stdlib/complex/float64/ctor' );
+
+var y = dcabs1( new Complex128( 5.0, -3.0 ) );
+// returns 8.0
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var Complex128 = require( '@stdlib/complex/float64/ctor' );
+var discreteUniform = require( '@stdlib/random/base/discrete-uniform' );
+var dcabs1 = require( '@stdlib/blas/base/dcabs1' );
+
+var z;
+var i;
+for ( i = 0; i < 100; i++ ) {
+    z = new Complex128( discreteUniform( -5, 5 ), discreteUniform( -5, 5 ) );
+    console.log( 'dcabs1(%s) = %d', z.toString(), dcabs1( z ) );
+}
+```
+
+</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
+#include "stdlib/blas/base/dcabs1.h"
+```
+
+#### c_dcabs1( z )
+
+Computes the sum of the [absolute values][absolute-value] of the real and imaginary components of a double-precision [complex][@stdlib/complex/float64/ctor] floating-point number.
+
+```c
+#include "stdlib/complex/float64/ctor.h"
+
+const stdlib_complex128_t c = stdlib_complex128( 5.0, -3.0 );
+
+double y = c_dcabs1( z );
+// returns 8.0
+```
+
+The function accepts the following arguments:
+
+-   **z**: `[in] stdlib_complex128_t` complex number.
+
+```c
+double c_dcabs1( const stdlib_complex128_t z );
+```
+
+</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
+#include "stdlib/blas/base/dcabs1.h"
+#include "stdlib/complex/float64/ctor.h"
+#include "stdlib/complex/real.h"
+#include "stdlib/complex/imag.h"
+#include <stdio.h>
+
+int main( void ) {
+    const stdlib_complex128_t x[] = {
+        stdlib_complex128( 3.14, 1.0 ),
+        stdlib_complex128( -3.14, -1.0 ),
+        stdlib_complex128( 0.0, 0.0 ),
+        stdlib_complex128( 0.0/0.0, 0.0/0.0 )
+    };
+
+    float y;
+    int i;
+    for ( i = 0; i < 4; i++ ) {
+        y = c_dcabs1( x[ i ] );
+        printf( "f(%lf + %lf) = %lf\n", stdlib_real( x[ i ] ), stdlib_imag( x[ i ] ), y );
+    }
+}
+```
+
+</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">
+
+[absolute-value]: https://en.wikipedia.org/wiki/Absolute_value
+
+[@stdlib/complex/float64/ctor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/complex/float64/ctor
+
+</section>
+
+<!-- /.links -->

lib/node_modules/@stdlib/blas/base/dcabs1/benchmark/benchmark.js

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+/**
+* @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 discreteUniform = require( '@stdlib/random/base/discrete-uniform' ).factory;
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var Complex128 = require( '@stdlib/complex/float64/ctor' );
+var pkg = require( './../package.json' ).name;
+var dcabs1 = require( './../lib' );
+
+
+// VARIABLES //
+
+var rand = discreteUniform( -500.0, 500.0 );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var values;
+	var y;
+	var i;
+
+	values = [
+		new Complex128( rand(), rand() ),
+		new Complex128( rand(), rand() )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = dcabs1( values[ i%values.length ] );
+		if ( isnan( y ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});

lib/node_modules/@stdlib/blas/base/dcabs1/benchmark/benchmark.native.js

@@ -0,0 +1,66 @@
+/**
+* @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 resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var discreteUniform = require( '@stdlib/random/base/discrete-uniform' ).factory;
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var Complex128 = require( '@stdlib/complex/float64/ctor' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var dcabs1 = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( dcabs1 instanceof Error )
+};
+var rand = discreteUniform( -500.0, 500.0 );
+
+
+// MAIN //
+
+bench( pkg+'::native', opts, function benchmark( b ) {
+	var values;
+	var y;
+	var i;
+
+	values = [
+		new Complex128( rand(), rand() ),
+		new Complex128( rand(), rand() )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = dcabs1( values[ i%values.length ] );
+		if ( isnan( y ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});