feat: add C implementation for math/base/special/minmaxabs

lib/node_modules/@stdlib/math/base/special/minmaxabs/README.md

@@ -119,6 +119,96 @@ for ( i = 0; i < 100; i++ ) {
 
 <!-- /.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/math/base/special/minmaxabs.h"
+```
+
+#### stdlib_base_minmaxabs( x, y, &minabs, &maxabs )
+
+Gets minimum and maximum absolute values in a single pass.
+
+```c
+stdlib_base_minmaxabs( 4.2, 3.14, &minabs, &maxabs );
+
+stdlib_base_minmaxabs( +0.0, -0.0, &minabs, &maxabs );
+```
+
+The function accepts the following arguments:
+
+-   **x**: `[in] double` input value.
+-   **y**: `[in] double` input value.
+-   **minabs**: `[out] double*` destination for the minimum part.
+-   **maxabs**: `[out] double*` destination for the maximum part.
+
+```c
+void stdlib_base_minmaxabs( const double x, const double y, double *minabs, double *maxabs );
+```
+
+</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/math/base/special/minmaxabs.h"
+#include <stdio.h>
+int main( void ) {
+    const double x[] = { 4.2, 2.0, -2.0, 1.0, -1.0, 3.9, -3.14, 5.0, -5.0, 1.0/0.0, -1.0/0.0, 0.0/0.0 };
+    const double y[] = { 3.14, 0.0, -0.0, 1.0, -1.0, 5.9, -3.14, 6.0, -6.0, 1.0/0.0, -1.0/0.0, 0.0/0.0 };
+    double minabs;
+    double maxabs;
+    int i;
+
+    for ( i = 0; i < 12; i++ ) {
+        stdlib_base_minmaxabs( x[ i ], y[ i ], &minabs, &maxabs );
+        printf( "x: %lf => minabs: %lf, y: %lf, minmaxabs(x, y): %lf\n", x[ i ], y[ i ], minabs, maxabs );
+    }
+}
+```
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
 <!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
 
 <section class="references">
@@ -131,14 +221,6 @@ for ( i = 0; i < 100; i++ ) {
 
 <section class="related">
 
-* * *
-
-## See Also
-
--   <span class="package-name">[`@stdlib/math/base/special/maxabs`][@stdlib/math/base/special/maxabs]</span><span class="delimiter">: </span><span class="description">return the maximum absolute value.</span>
--   <span class="package-name">[`@stdlib/math/base/special/minabs`][@stdlib/math/base/special/minabs]</span><span class="delimiter">: </span><span class="description">return the minimum absolute value.</span>
--   <span class="package-name">[`@stdlib/math/base/special/minmax`][@stdlib/math/base/special/minmax]</span><span class="delimiter">: </span><span class="description">return the minimum and maximum values.</span>
-
 </section>
 
 <!-- /.related -->
@@ -149,12 +231,6 @@ for ( i = 0; i < 100; i++ ) {
 
 <!-- <related-links> -->
 
-[@stdlib/math/base/special/maxabs]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/math/base/special/maxabs
-
-[@stdlib/math/base/special/minabs]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/math/base/special/minabs
-
-[@stdlib/math/base/special/minmax]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/math/base/special/minmax
-
 <!-- </related-links> -->
 
 </section>

lib/node_modules/@stdlib/math/base/special/minmaxabs/benchmark/benchmark.js

@@ -21,7 +21,7 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
-var randu = require( '@stdlib/random/base/randu' );
+var randu = require( '@stdlib/random/base/uniform' );
 var isArray = require( '@stdlib/assert/is-array' );
 var minabs = require( '@stdlib/math/base/special/minabs' );
 var maxabs = require( '@stdlib/math/base/special/maxabs' );
@@ -37,10 +37,11 @@ bench( pkg, function benchmark( b ) {
 	var z;
 	var i;
 
+	x = ( randu()*1000.0 ) - 500.0;
+	y = ( randu()*1000.0 ) - 500.0;
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = ( randu()*1000.0 ) - 500.0;
-		y = ( randu()*1000.0 ) - 500.0;
 		z = minmaxabs( x, y );
 		if ( z.length !== 2 ) {
 			b.fail( 'should have expected length' );
@@ -63,10 +64,11 @@ bench( pkg+':assign', function benchmark( b ) {
 
 	out = [ 0.0, 0.0 ];
 
+	x = ( randu()*1000.0 ) - 500.0;
+	y = ( randu()*1000.0 ) - 500.0;
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = ( randu()*1000.0 ) - 500.0;
-		y = ( randu()*1000.0 ) - 500.0;
 		z = minmaxabs.assign( x, y, out, 1, 0 );
 		if ( z.length !== 2 ) {
 			b.fail( 'should have expected length' );
@@ -86,10 +88,11 @@ bench( pkg+'::minabs,maxabs', function benchmark( b ) {
 	var z;
 	var i;
 
+	x = ( randu()*1000.0 ) - 500.0;
+	y = ( randu()*1000.0 ) - 500.0;
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = ( randu()*1000.0 ) - 500.0;
-		y = ( randu()*1000.0 ) - 500.0;
 		z = [ minabs( x, y ), maxabs( x, y ) ];
 		if ( z.length !== 2 ) {
 			b.fail( 'should have expected length' );
@@ -111,10 +114,11 @@ bench( pkg+'::minabs,maxabs,memory_reuse', function benchmark( b ) {
 
 	z = [ 0.0, 0.0 ];
 
+	x = ( randu()*1000.0 ) - 500.0;
+	y = ( randu()*1000.0 ) - 500.0;
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = ( randu()*1000.0 ) - 500.0;
-		y = ( randu()*1000.0 ) - 500.0;
 		z[ 0 ] = minabs( x, y );
 		z[ 1 ] = maxabs( x, y );
 		if ( z.length !== 2 ) {

lib/node_modules/@stdlib/math/base/special/minmaxabs/benchmark/c/native/Makefile

@@ -0,0 +1,146 @@
+#/
+# @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.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+	CC := $(C_COMPILER)
+else
+	CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+	-std=c99 \
+	-O3 \
+	-Wall \
+	-pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+	fPIC ?=
+else
+	fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := benchmark.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+	$(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled benchmarks.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+	$(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+	$(QUIET) -rm -f *.o *.out
+
+.PHONY: clean