diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/README.md b/lib/node_modules/@stdlib/number/float16/base/sub/README.md index 02fb5c84b9f0..e539314ac64f 100644 --- a/lib/node_modules/@stdlib/number/float16/base/sub/README.md +++ b/lib/node_modules/@stdlib/number/float16/base/sub/README.md @@ -98,6 +98,104 @@ logEachMap( 'x: %f, y: %f => %f', x, y, sub ); + + +* * * + +
+ +## C APIs + + + +
+ +
+ + + + + +
+ +### Usage + +```c +#include "stdlib/number/float16/base/sub.h" +``` + +#### stdlib_base_float16_mul( x, y ) + +Subtract two half-precision floating-point numbers. + +```c +#include "stdlib/number/float16/ctor.h" + +stdlib_float16_t x = stdlib_float16_from_bits( 17664 ); // => 5.0 +stdlib_float16_t y = stdlib_float16_from_bits( 16384 ); // => 2.0 + +stdlib_float16_t v = stdlib_base_float16_sub( x, y ); +``` + +The function accepts the following arguments: + +- **x**: `[in] stdlib_float16_t` first input value. +- **y**: `[in] stdlib_float16_t` second input value. + +```c +stdlib_float16_t stdlib_base_float16_sub( const stdlib_float16_t x, const stdlib_float16_t y ); +``` + +
+ + + + + +
+ +
+ + + + + +
+ +### Examples + +```c +#include "stdlib/number/float16/base/sub.h" +#include "stdlib/number/float16/ctor.h" +#include "stdlib/number/float32/base/to_float16.h" +#include "stdlib/number/float16/base/to_float32.h" +#include + +int main( void ) { + const float x[] = { 3.14f, -3.14f, 0.0f, 0.0f/0.0f }; + const float y[] = { 3.14f, -3.14f, -0.0f, 0.0f/0.0f }; + + stdlib_float16_t v; + stdlib_float16_t w; + stdlib_float16_t z; + int i; + for ( i = 0; i < 4; i++ ) { + v = stdlib_base_float32_to_float16( x[ i ]); + w = stdlib_base_float32_to_float16( y[ i ]); + z = stdlib_base_float16_sub( v, w ); + printf( "%f - %f = %f\n", stdlib_base_float16_to_float32( v ), stdlib_base_float16_to_float32( w ), stdlib_base_float16_to_float32( z ) ); + } +} +``` + +
+ + + +
+ + +
diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/benchmark.js b/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/benchmark.js index b43dce23a2e1..cd28516c98de 100644 --- a/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/benchmark.js +++ b/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/benchmark.js @@ -26,6 +26,7 @@ var map = require( '@stdlib/array/base/map' ); var toFloat16 = require( '@stdlib/number/float64/base/to-float16' ); var isnan = require( '@stdlib/math/base/assert/is-nan' ); var naryFunction = require( '@stdlib/utils/nary-function' ); +var format = require( '@stdlib/string/format' ); var pkg = require( './../package.json' ).name; var sub = require( './../lib' ); @@ -55,3 +56,25 @@ bench( pkg, function benchmark( b ) { b.pass( 'benchmark finished' ); b.end(); }); + +bench( format( '%s::inline', pkg ), function benchmark( b ) { + var x; + var y; + var i; + + x = map( uniform( 100, -100, 100 ), naryFunction( toFloat16, 1 ) ); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + y = x[ i%x.length ] + 5.0; + 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(); +}); diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/benchmark.native.js new file mode 100644 index 000000000000..53398a686f85 --- /dev/null +++ b/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/benchmark.native.js @@ -0,0 +1,67 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 uniform = require( '@stdlib/random/array/uniform' ); +var map = require( '@stdlib/array/base/map' ); +var toFloat16 = require( '@stdlib/number/float64/base/to-float16' ); +var naryFunction = require( '@stdlib/utils/nary-function' ); +var format = require( '@stdlib/string/format' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var tryRequire = require( '@stdlib/utils/try-require' ); +var pkg = require( './../package.json' ).name; + + +// VARIABLES // + +var sub = tryRequire( resolve( __dirname, './../lib/native.js' ) ); +var opts = { + 'skip': ( sub instanceof Error ) +}; + + +// MAIN // + +bench( format( '%s::native', pkg ), opts, function benchmark( b ) { + var out; + var x; + var y; + var i; + + x = map( uniform( 100, -100, 100 ), naryFunction( toFloat16, 1 ) ); + y = map( uniform( 100, -100, 100 ), naryFunction( toFloat16, 1 ) ); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + out = sub( x[ i%x.length ], y[ i%y.length ] ); + 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(); +}); diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/c/Makefile b/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/c/Makefile new file mode 100644 index 000000000000..979768abbcec --- /dev/null +++ b/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/c/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 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 diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/c/benchmark.c new file mode 100644 index 000000000000..775648d3ea56 --- /dev/null +++ b/lib/node_modules/@stdlib/number/float16/base/sub/benchmark/c/benchmark.c @@ -0,0 +1,140 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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. +*/ + +#include "stdlib/number/float16/base/sub.h" +#include "stdlib/number/float64/base/to_float16.h" +#include "stdlib/number/float16/ctor.h" +#include +#include +#include +#include +#include + +#define NAME "sub" +#define ITERATIONS 1000000 +#define REPEATS 3 + +/** +* Prints the TAP version. +*/ +static void print_version( void ) { + printf( "TAP version 13\n" ); +} + +/** +* Prints the TAP summary. +* +* @param total total number of tests +* @param passing total number of passing tests +*/ +static void print_summary( int total, int passing ) { + printf( "#\n" ); + printf( "1..%d\n", total ); // TAP plan + printf( "# total %d\n", total ); + printf( "# pass %d\n", passing ); + printf( "#\n" ); + printf( "# ok\n" ); +} + +/** +* Prints benchmarks results. +* +* @param elapsed elapsed time in seconds +*/ +static void print_results( double elapsed ) { + double rate = (double)ITERATIONS / elapsed; + printf( " ---\n" ); + printf( " iterations: %d\n", ITERATIONS ); + printf( " elapsed: %0.9f\n", elapsed ); + printf( " rate: %0.9f\n", rate ); + printf( " ...\n" ); +} + +/** +* Returns a clock time. +* +* @return clock time +*/ +static double tic( void ) { + struct timeval now; + gettimeofday( &now, NULL ); + return (double)now.tv_sec + (double)now.tv_usec/1.0e6; +} + +/** +* Generates a random number on the interval [0,1). +* +* @return random number +*/ +static double rand_double( void ) { + int r = rand(); + return (double)r / ( (double)RAND_MAX + 1.0 ); +} + +/** +* Runs a benchmark. +* +* @return elapsed time in seconds +*/ +static double benchmark( void ) { + stdlib_float16_t x[ 100 ]; + stdlib_float16_t y[ 100 ]; + double elapsed; + stdlib_float16_t z; + double t; + int i; + + for ( i = 0; i < 100; i++ ) { + x[i] = stdlib_base_float64_to_float16( ( 1000.0*rand_double() ) - 500.0 ); + y[i] = stdlib_base_float64_to_float16( ( 1000.0*rand_double() ) - 500.0 ); + } + + t = tic(); + for ( i = 0; i < ITERATIONS; i++ ) { + z = stdlib_base_float16_sub( x[ i%100 ], y[ i%100 ] ); + if ( z != z ) { + printf( "should not return NaN\n" ); + break; + } + } + elapsed = tic() - t; + if ( z != z ) { + printf( "should not return NaN\n" ); + } + return elapsed; +} + +/** +* Main execution sequence. +*/ +int main( void ) { + double elapsed; + int i; + + // Use the current time to seed the random number generator: + srand( time( NULL ) ); + + print_version(); + for ( i = 0; i < REPEATS; i++ ) { + printf( "# c::%s\n", NAME ); + elapsed = benchmark(); + print_results( elapsed ); + printf( "ok %d benchmark finished\n", i+1 ); + } + print_summary( REPEATS, REPEATS ); +} diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/binding.gyp b/lib/node_modules/@stdlib/number/float16/base/sub/binding.gyp new file mode 100644 index 000000000000..0d6508a12e99 --- /dev/null +++ b/lib/node_modules/@stdlib/number/float16/base/sub/binding.gyp @@ -0,0 +1,170 @@ +# @license Apache-2.0 +# +# Copyright (c) 2026 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. + +# A `.gyp` file for building a Node.js native add-on. +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # List of files to include in this file: + 'includes': [ + './include.gypi', + ], + + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Target name should match the add-on export name: + 'addon_target_name%': 'addon', + + # Set variables based on the host OS: + 'conditions': [ + [ + 'OS=="win"', + { + # Define the object file suffix: + 'obj': 'obj', + }, + { + # Define the object file suffix: + 'obj': 'o', + } + ], # end condition (OS=="win") + ], # end conditions + }, # end variables + + # Define compile targets: + 'targets': [ + + # Target to generate an add-on: + { + # The target name should match the add-on export name: + 'target_name': '<(addon_target_name)', + + # Define dependencies: + 'dependencies': [], + + # Define directories which contain relevant include headers: + 'include_dirs': [ + # Local include directory: + '<@(include_dirs)', + ], + + # List of source files: + 'sources': [ + '<@(src_files)', + ], + + # Settings which should be applied when a target's object files are used as linker input: + 'link_settings': { + # Define libraries: + 'libraries': [ + '<@(libraries)', + ], + + # Define library directories: + 'library_dirs': [ + '<@(library_dirs)', + ], + }, + + # C/C++ compiler flags: + 'cflags': [ + # Enable commonly used warning options: + '-Wall', + + # Aggressive optimization: + '-O3', + ], + + # C specific compiler flags: + 'cflags_c': [ + # Specify the C standard to which a program is expected to conform: + '-std=c99', + ], + + # C++ specific compiler flags: + 'cflags_cpp': [ + # Specify the C++ standard to which a program is expected to conform: + '-std=c++11', + ], + + # Linker flags: + 'ldflags': [], + + # Apply conditions based on the host OS: + 'conditions': [ + [ + 'OS=="mac"', + { + # Linker flags: + 'ldflags': [ + '-undefined dynamic_lookup', + '-Wl,-no-pie', + '-Wl,-search_paths_first', + ], + }, + ], # end condition (OS=="mac") + [ + 'OS!="win"', + { + # C/C++ flags: + 'cflags': [ + # Generate platform-independent code: + '-fPIC', + ], + }, + ], # end condition (OS!="win") + ], # end conditions + }, # end target <(addon_target_name) + + # Target to copy a generated add-on to a standard location: + { + 'target_name': 'copy_addon', + + # Declare that the output of this target is not linked: + 'type': 'none', + + # Define dependencies: + 'dependencies': [ + # Require that the add-on be generated before building this target: + '<(addon_target_name)', + ], + + # Define a list of actions: + 'actions': [ + { + 'action_name': 'copy_addon', + 'message': 'Copying addon...', + + # Explicitly list the inputs in the command-line invocation below: + 'inputs': [], + + # Declare the expected outputs: + 'outputs': [ + '<(addon_output_dir)/<(addon_target_name).node', + ], + + # Define the command-line invocation: + 'action': [ + 'cp', + '<(PRODUCT_DIR)/<(addon_target_name).node', + '<(addon_output_dir)/<(addon_target_name).node', + ], + }, + ], # end actions + }, # end target copy_addon + ], # end targets +} diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/examples/c/Makefile b/lib/node_modules/@stdlib/number/float16/base/sub/examples/c/Makefile new file mode 100644 index 000000000000..c8f8e9a1517b --- /dev/null +++ b/lib/node_modules/@stdlib/number/float16/base/sub/examples/c/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 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 := example.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 examples. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/examples/c/example.c b/lib/node_modules/@stdlib/number/float16/base/sub/examples/c/example.c new file mode 100644 index 000000000000..e3d17992acfd --- /dev/null +++ b/lib/node_modules/@stdlib/number/float16/base/sub/examples/c/example.c @@ -0,0 +1,39 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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. +*/ + +#include "stdlib/number/float16/base/sub.h" +#include "stdlib/number/float16/ctor.h" +#include "stdlib/number/float32/base/to_float16.h" +#include "stdlib/number/float16/base/to_float32.h" +#include + +int main( void ) { + const float x[] = { 3.14f, -3.14f, 0.0f, 0.0f/0.0f }; + const float y[] = { 3.14f, -3.14f, -0.0f, 0.0f/0.0f }; + + stdlib_float16_t v; + stdlib_float16_t w; + stdlib_float16_t z; + int i; + for ( i = 0; i < 4; i++ ) { + v = stdlib_base_float32_to_float16( x[ i ]); + w = stdlib_base_float32_to_float16( y[ i ]); + z = stdlib_base_float16_sub( v, w ); + printf( "%f - %f = %f\n", stdlib_base_float16_to_float32( v ), stdlib_base_float16_to_float32( w ), stdlib_base_float16_to_float32( z ) ); + } +} diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/include.gypi b/lib/node_modules/@stdlib/number/float16/base/sub/include.gypi new file mode 100644 index 000000000000..bee8d41a2caf --- /dev/null +++ b/lib/node_modules/@stdlib/number/float16/base/sub/include.gypi @@ -0,0 +1,53 @@ +# @license Apache-2.0 +# +# Copyright (c) 2026 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. + +# A GYP include file for building a Node.js native add-on. +# +# Main documentation: +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Source directory: + 'src_dir': './src', + + # Include directories: + 'include_dirs': [ + ' +#include +#include +#include + +/** +* Receives JavaScript callback invocation data. +* +* @param env environment under which the function is invoked +* @param info callback data +* @return Node-API value +*/ +static napi_value addon( napi_env env, napi_callback_info info ) { + napi_status status; + + // Get callback arguments: + size_t argc = 2; + napi_value argv[ 2 ]; + status = napi_get_cb_info( env, info, &argc, argv, NULL, NULL ); + assert( status == napi_ok ); + + // Check whether we were provided the correct number of arguments: + if ( argc < 2 ) { + status = napi_throw_error( env, NULL, "invalid invocation. Insufficient arguments." ); + assert( status == napi_ok ); + return NULL; + } + if ( argc > 2 ) { + status = napi_throw_error( env, NULL, "invalid invocation. Too many arguments." ); + assert( status == napi_ok ); + return NULL; + } + + napi_valuetype vtype0; + napi_valuetype vtype1; + + status = napi_typeof( env, argv[ 0 ], &vtype0 ); + assert( status == napi_ok ); + if ( vtype0 != napi_number ) { + status = napi_throw_type_error( env, NULL, "invalid argument. First argument must be a number." ); + assert( status == napi_ok ); + return NULL; + } + + status = napi_typeof( env, argv[ 1 ], &vtype1 ); + assert( status == napi_ok ); + if ( vtype1 != napi_number ) { + status = napi_throw_type_error( env, NULL, "invalid argument. Second argument must be a number." ); + assert( status == napi_ok ); + return NULL; + } + + double x; + double y; + + status = napi_get_value_double( env, argv[ 0 ], &x ); + assert( status == napi_ok ); + + status = napi_get_value_double( env, argv[ 1 ], &y ); + assert( status == napi_ok ); + + stdlib_float16_t out = stdlib_base_float16_sub( stdlib_base_float64_to_float16( x ), stdlib_base_float64_to_float16( y ) ); + + napi_value v; + status = napi_create_double( env, stdlib_base_float16_to_float64( out ), &v ); + assert( status == napi_ok ); + + return v; +} + +/** +* Initializes a Node-API module. +* +* @param env environment under which the function is invoked +* @param exports exports object +* @return main export +*/ +static napi_value init( napi_env env, napi_value exports ) { + napi_value fcn; + napi_status status = napi_create_function( env, "exports", NAPI_AUTO_LENGTH, addon, NULL, &fcn ); + assert( status == napi_ok ); + return fcn; +} + +NAPI_MODULE( NODE_GYP_MODULE_NAME, init ) diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/src/main.c b/lib/node_modules/@stdlib/number/float16/base/sub/src/main.c new file mode 100644 index 000000000000..4afc7c75a9d7 --- /dev/null +++ b/lib/node_modules/@stdlib/number/float16/base/sub/src/main.c @@ -0,0 +1,42 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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. +*/ + +#include "stdlib/number/float16/base/sub.h" +#include "stdlib/number/float32/base/to_float16.h" +#include "stdlib/number/float16/base/to_float32.h" +#include "stdlib/number/float16/ctor.h" + +/** +* Subtracts two half-precision floating-point numbers. +* +* @param x first number +* @param y second number +* @return result +* +* @example +* #include "stdlib/number/float16/ctor.h" +* +* stdlib_float16_t x = stdlib_float16_from_bits( 17664 ); // => 5.0 +* stdlib_float16_t y = stdlib_float16_from_bits( 16384 ); // => 2.0 +* +* stdlib_float16_t v = stdlib_base_float16_sub( x, y ); +*/ +stdlib_float16_t stdlib_base_float16_sub( const stdlib_float16_t x, const stdlib_float16_t y ) { + float z = stdlib_base_float16_to_float32( x ) - stdlib_base_float16_to_float32( y ); + return stdlib_base_float32_to_float16( z ); +} diff --git a/lib/node_modules/@stdlib/number/float16/base/sub/test/test.native.js b/lib/node_modules/@stdlib/number/float16/base/sub/test/test.native.js new file mode 100644 index 000000000000..5e0bab2535cd --- /dev/null +++ b/lib/node_modules/@stdlib/number/float16/base/sub/test/test.native.js @@ -0,0 +1,90 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 tape = require( 'tape' ); +var isNegativeZero = require( '@stdlib/number/float16/base/assert/is-negative-zero' ); +var isPositiveZero = require( '@stdlib/number/float16/base/assert/is-positive-zero' ); +var isnan = require( '@stdlib/number/float16/base/assert/is-nan' ); +var PINF = require( '@stdlib/constants/float32/pinf' ); +var NINF = require( '@stdlib/constants/float32/ninf' ); +var tryRequire = require( '@stdlib/utils/try-require' ); + + +// VARIABLES // + +var sub = tryRequire( resolve( __dirname, './../lib/native.js' ) ); +var opts = { + 'skip': ( sub instanceof Error ) +}; + + +// TESTS // + +tape( 'main export is a function', opts, function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof sub, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function subtracts two numbers', opts, function test( t ) { + t.strictEqual( sub( -2.0, 4.0 ), -6.0, 'returns expected value' ); + t.strictEqual( sub( 3.0, 0.0 ), 3.0, 'returns expected value' ); + t.strictEqual( sub( 0.0, -0.0 ), 0.0, 'returns expected value' ); + t.strictEqual( sub( -3.0, -3.0 ), 0.0, 'returns expected value' ); + t.end(); +}); + +tape( 'the function handles negative zeros', opts, function test( t ) { + t.strictEqual( isPositiveZero( sub( -0.0, -0.0 ) ), true, 'returns expected value' ); + t.strictEqual( isNegativeZero( sub( -0.0, 0.0 ) ), true, 'returns expected value' ); + t.strictEqual( isPositiveZero( sub( 0.0, -0.0 ) ), true, 'returns expected value' ); + t.strictEqual( isPositiveZero( sub( 0.0, 0.0 ) ), true, 'returns expected value' ); + t.end(); +}); + +tape( 'the function handles infinities', opts, function test( t ) { + t.strictEqual( sub( PINF, 5.0 ), PINF, 'returns expected value' ); + t.strictEqual( sub( 5.0, PINF ), NINF, 'returns expected value' ); + t.strictEqual( isnan( sub( PINF, PINF ) ), true, 'returns expected value' ); + + t.strictEqual( sub( NINF, 5.0 ), NINF, 'returns expected value' ); + t.strictEqual( sub( 5.0, NINF ), PINF, 'returns expected value' ); + t.strictEqual( isnan( sub( NINF, NINF ) ), true, 'returns expected value' ); + + t.strictEqual( sub( NINF, PINF ), NINF, 'returns expected value' ); + t.strictEqual( sub( PINF, NINF ), PINF, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `NaN`, the function returns `NaN`', opts, function test( t ) { + t.strictEqual( isnan( sub( NaN, 5.0 ) ), true, 'returns expected value' ); + t.strictEqual( isnan( sub( NaN, PINF ) ), true, 'returns expected value' ); + t.strictEqual( isnan( sub( NaN, NINF ) ), true, 'returns expected value' ); + t.strictEqual( isnan( sub( 5.0, NaN ) ), true, 'returns expected value' ); + t.strictEqual( isnan( sub( PINF, NaN ) ), true, 'returns expected value' ); + t.strictEqual( isnan( sub( NINF, NaN ) ), true, 'returns expected value' ); + t.strictEqual( isnan( sub( NaN, NaN ) ), true, 'returns expected value' ); + + t.end(); +}); diff --git a/lib/node_modules/@stdlib/number/float16/base/to-word/include/stdlib/number/float16/base/to_word.h b/lib/node_modules/@stdlib/number/float16/base/to-word/include/stdlib/number/float16/base/to_word.h deleted file mode 100644 index 58c58b20b62e..000000000000 --- a/lib/node_modules/@stdlib/number/float16/base/to-word/include/stdlib/number/float16/base/to_word.h +++ /dev/null @@ -1,62 +0,0 @@ -/** -* @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. -*/ - -#ifndef STDLIB_NUMBER_FLOAT16_BASE_TO_WORD_H -#define STDLIB_NUMBER_FLOAT16_BASE_TO_WORD_H - -#include "stdlib/number/float16/ctor.h" -#include - -/* -* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler. -*/ -#ifdef __cplusplus -extern "C" { -#endif - -/** -* An opaque type definition for a union for converting between a half-precision floating-point number and an unsigned 16-bit integer. -* -* @example -* #include "stdlib/number/float16/ctor.h" -* #include -* -* stdlib_base_float16_word_t w; -* -* // Assign a half-precision floating-point number: -* w.value = stdlib_float16_from_bits( 51648 ); // => -11.5 -* -* // Retrieve the word: -* uint16_t word = w.word; -*/ -typedef union { - stdlib_float16_t value; - uint16_t word; -} stdlib_base_float16_word_t; - - -/** -* Convert a half-precision floating-point number into an unsigned 16-bit integer corresponding to the number's IEEE 754 binary representation. -*/ -void stdlib_base_float16_to_word( const stdlib_float16_t x, uint16_t *word ); - -#ifdef __cplusplus -} -#endif - -#endif // !STDLIB_NUMBER_FLOAT16_BASE_TO_WORD_H