From 8a22e75fc3fbb18dbe454f971a79344764100e70 Mon Sep 17 00:00:00 2001
From: NEERAJ <neerajrpathak710@gmail.com>
Date: Sat, 27 Dec 2025 14:01:08 +0530
Subject: [PATCH 01/13] feat: adding initial files

---
 .../number/float16/base/signbit/README.md     | 195 ++++++++++++++++++
 .../base/signbit/benchmark/benchmark.js       |  55 +++++
 .../signbit/benchmark/benchmark.native.js     |  64 ++++++
 .../float16/base/signbit/benchmark/c/Makefile | 146 +++++++++++++
 .../base/signbit/benchmark/c/benchmark.c      | 138 +++++++++++++
 .../number/float16/base/signbit/binding.gyp   | 170 +++++++++++++++
 .../number/float16/base/signbit/docs/repl.txt |  28 +++
 .../base/signbit/docs/types/index.d.ts        |  52 +++++
 .../float16/base/signbit/docs/types/test.ts   |  43 ++++
 .../float16/base/signbit/examples/c/Makefile  | 146 +++++++++++++
 .../float16/base/signbit/examples/c/example.c |  37 ++++
 .../float16/base/signbit/examples/index.js    |  35 ++++
 .../number/float16/base/signbit/include.gypi  |  53 +++++
 .../stdlib/number/float16/base/signbit.h      |  40 ++++
 .../number/float16/base/signbit/lib/index.js  |  50 +++++
 .../number/float16/base/signbit/lib/main.js   |  65 ++++++
 .../number/float16/base/signbit/lib/native.js |  63 ++++++
 .../number/float16/base/signbit/manifest.json |  81 ++++++++
 .../number/float16/base/signbit/package.json  |  76 +++++++
 .../number/float16/base/signbit/src/Makefile  |  70 +++++++
 .../number/float16/base/signbit/src/addon.c   |  90 ++++++++
 .../number/float16/base/signbit/src/main.c    |  43 ++++
 .../number/float16/base/signbit/test/test.js  |  70 +++++++
 .../float16/base/signbit/test/test.native.js  |  79 +++++++
 24 files changed, 1889 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/README.md
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/benchmark.js
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/benchmark.native.js
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/Makefile
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/binding.gyp
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/index.d.ts
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/test.ts
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/examples/c/Makefile
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/examples/c/example.c
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/examples/index.js
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/include.gypi
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/include/stdlib/number/float16/base/signbit.h
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/lib/index.js
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/lib/main.js
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/lib/native.js
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/manifest.json
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/package.json
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/src/Makefile
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/src/addon.c
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/src/main.c
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js
 create mode 100644 lib/node_modules/@stdlib/number/float16/base/signbit/test/test.native.js

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/README.md b/lib/node_modules/@stdlib/number/float16/base/signbit/README.md
new file mode 100644
index 000000000000..3be71f2a3631
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/README.md
@@ -0,0 +1,195 @@
+<!--
+
+@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.
+
+-->
+
+# signbit
+
+> Return a boolean indicating if the sign bit for a [half-precision floating-point number][ieee754] is on (true) or off (false).
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var signbit = require( '@stdlib/number/float16/base/signbit' );
+```
+
+#### signbit( x )
+
+Returns a boolean indicating if the sign bit for a [half-precision floating-point number][ieee754] is on (`true`) or off (`false`).
+
+```javascript
+var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+
+var bool = signbit( toFloat16( 4.0 ) );
+// returns false
+
+bool = signbit( toFloat16( -5.960464477539063e-8 ) );
+// returns true
+
+bool = signbit( 0.0 );
+// returns false
+
+bool = signbit( -0.0 );
+// returns true
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+var randu = require( '@stdlib/random/base/randu' );
+var signbit = require( '@stdlib/number/float16/base/signbit' );
+
+var sign;
+var x;
+var i;
+
+for ( i = 0; i < 100; i++ ) {
+    x = (randu()*100.0) - 50.0;
+    x = toFloat16( x );
+    sign = signbit( x );
+    sign = ( sign ) ? 'true' : 'false';
+    console.log( 'x: %d. signbit: %s.', x, sign );
+}
+```
+
+</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/number/float16/base/signbit.h"
+```
+
+#### stdlib_base_float16_signbit( x )
+
+Returns an integer indicating whether the sign bit for a half-precision floating-point number is on (`1`) or off (`0`).
+
+```c
+#include "stdlib/number/float16/ctor.h"
+#include <stdint.h>
+
+stdlib_float16_t x = stdlib_float16_from_bits( 51648 ); // => -11.5
+int8_t out = stdlib_base_float16_signbit( x );
+```
+
+The function accepts the following arguments:
+
+-   **x**: `[in] stdlib_float16_t` input value.
+
+```c
+int8_t stdlib_base_float16_signbit( const stdlib_float16_t x );
+```
+
+</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/number/float16/base/signbit.h"
+#include "stdlib/number/float16/ctor.h"
+#include "stdlib/number/float32/base/to_float16.h"
+#include <stdint.h>
+#include <stdio.h>
+#include <inttypes.h>
+
+int main( void ) {
+    const float x[] = { 3.14f, -3.14f, 0.0f, -0.0f, 4.0f, 1.0f, -1.0f, 1.0e38f, -1.0e38f };
+
+    stdlib_float16_t v;
+    int8_t out;
+    int i;
+    for ( i = 0; i < 9; i++ ) {
+        v = stdlib_base_float32_to_float16( x[ i ] );
+        out = stdlib_base_float16_signbit( v );
+        printf( "%f => signbit: %" PRId8 "\n", x[ i ], out );
+    }
+}
+```
+
+</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">
+
+[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/benchmark.js b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/benchmark.js
new file mode 100644
index 000000000000..d8d6cb0f0e3e
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/benchmark.js
@@ -0,0 +1,55 @@
+/**
+* @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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
+var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+var map = require( '@stdlib/array/base/map' );
+var naryFunction = require( '@stdlib/utils/nary-function' );
+var pkg = require( './../package.json' ).name;
+var signbit = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var x;
+	var y;
+	var i;
+
+	x = map( uniform( 100, -5.0e4, 5.0e4 ), naryFunction( toFloat16, 1 ) );
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = signbit( x[ i%x.length ] );
+		if ( typeof y !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( y ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..04c0abe1d132
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/benchmark.native.js
@@ -0,0 +1,64 @@
+/**
+* @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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
+var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+var map = require( '@stdlib/array/base/map' );
+var naryFunction = require( '@stdlib/utils/nary-function' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var signbit = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( signbit instanceof Error )
+};
+
+
+// MAIN //
+
+bench( pkg+'::native', opts, function benchmark( b ) {
+	var x;
+	var y;
+	var i;
+
+	x = map( uniform( 100, -5.0e4, 5.0e4 ), naryFunction( toFloat16, 1 ) );
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = signbit( x[ i%x.length ] );
+		if ( typeof y !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( y ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/Makefile b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/Makefile
new file mode 100644
index 000000000000..a4bd7b38fd74
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @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.
+#/
+
+# 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/signbit/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c
new file mode 100644
index 000000000000..412b0139711f
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c
@@ -0,0 +1,138 @@
+/**
+* @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.
+*/
+
+#include "stdlib/number/float16/base/signbit.h"
+#include "stdlib/number/float32/base/to_float16.h"
+#include "stdlib/number/float16/ctor.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <math.h>
+#include <time.h>
+#include <sys/time.h>
+
+#define NAME "float16_signbit"
+#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 float rand_float( void ) {
+	int r = rand();
+	return (float)r / ( (float)RAND_MAX + 1.0f );
+}
+
+/**
+* Runs a benchmark.
+*
+* @return elapsed time in seconds
+*/
+static double benchmark( void ) {
+	stdlib_float16_t x[ 100 ];
+	double elapsed;
+	int8_t out;
+	double t;
+	int i;
+
+	for ( i = 0; i < 100; i++ ) {
+		x[ i ] = stdlib_base_float32_to_float16( ( 200.0f * rand_float() ) - 100.0f );
+	}
+
+	t = tic();
+	for ( i = 0; i < ITERATIONS; i++ ) {
+		out = stdlib_base_float16_signbit( x[ i%100 ] );
+		if ( out != 0 && out != 1 ) {
+			printf( "unexpected result\n" );
+			break;
+		}
+	}
+	elapsed = tic() - t;
+	if ( out != 0 && out != 1 ) {
+		printf( "unexpected result\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::native::%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/signbit/binding.gyp b/lib/node_modules/@stdlib/number/float16/base/signbit/binding.gyp
new file mode 100644
index 000000000000..68a1ca11d160
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/binding.gyp
@@ -0,0 +1,170 @@
+# @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.
+
+# 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/signbit/docs/repl.txt b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt
new file mode 100644
index 000000000000..92092816eb0e
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt
@@ -0,0 +1,28 @@
+
+{{alias}}( x )
+    Returns a boolean indicating if the sign bit is on (true) or off (false).
+
+    Parameters
+    ----------
+    x: float
+        Half-precision floating-point number.
+
+    Returns
+    -------
+    bool: boolean
+        Boolean indicating if sign bit is on or off.
+
+    Examples
+    --------
+    > var bool = {{alias}}( {{alias:@stdlib/number/float64/base/to-float16}}( 4.0 ) )
+    false
+    > bool = {{alias}}( {{alias:@stdlib/number/float64/base/to-float16}}( −5.960464477539063e−8 ) )
+    true
+    > bool = {{alias}}( 0.0 )
+    false
+    > bool = {{alias}}( -0.0 )
+    true
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/index.d.ts b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/index.d.ts
new file mode 100644
index 000000000000..32d4cd6eece4
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/index.d.ts
@@ -0,0 +1,52 @@
+/*
+* @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.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns a boolean indicating if the sign bit is on (true) or off (false).
+*
+* @param x - half-precision floating-point number
+* @returns boolean indicating if sign bit is on or off
+*
+* @example
+* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+*
+* var bool = signbit( toFloat16( 4.0 ) );
+* // returns false
+*
+* @example
+* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+*
+* var bool = signbit( toFloat16( −5.960464477539063e−8 ) );
+* // returns true
+*
+* @example
+* var bool = signbit( 0.0 );
+* // returns false
+*
+* @example
+* var bool = signbit( -0.0 );
+* // returns true
+*/
+declare function signbit( x: number ): boolean;
+
+
+// EXPORTS //
+
+export = signbit;
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/test.ts b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/test.ts
new file mode 100644
index 000000000000..6f17d0dce45b
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/test.ts
@@ -0,0 +1,43 @@
+/*
+* @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.
+*/
+
+import signbit = require( './index' );
+
+
+// TESTS //
+
+// The function returns a boolean...
+{
+	signbit( 0.0 ); // $ExpectType boolean
+	signbit( -0.0 ); // $ExpectType boolean
+}
+
+// The compiler throws an error if the function is provided a value other than a number...
+{
+	signbit( true ); // $ExpectError
+	signbit( false ); // $ExpectError
+	signbit( 'abc' ); // $ExpectError
+	signbit( [] ); // $ExpectError
+	signbit( {} ); // $ExpectError
+	signbit( ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided insufficient arguments...
+{
+	signbit(); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/examples/c/Makefile b/lib/node_modules/@stdlib/number/float16/base/signbit/examples/c/Makefile
new file mode 100644
index 000000000000..25ced822f96a
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @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.
+#/
+
+# 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/signbit/examples/c/example.c b/lib/node_modules/@stdlib/number/float16/base/signbit/examples/c/example.c
new file mode 100644
index 000000000000..619b09c76f25
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/examples/c/example.c
@@ -0,0 +1,37 @@
+/**
+* @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.
+*/
+
+#include "stdlib/number/float16/base/signbit.h"
+#include "stdlib/number/float16/ctor.h"
+#include "stdlib/number/float32/base/to_float16.h"
+#include <stdint.h>
+#include <stdio.h>
+#include <inttypes.h>
+
+int main( void ) {
+	const float x[] = { 3.14f, -3.14f, 0.0f, -0.0f, 4.0f, 1.0f, -1.0f, 1.0e38f, -1.0e38f };
+
+	stdlib_float16_t v;
+	int8_t out;
+	int i;
+	for ( i = 0; i < 9; i++ ) {
+		v = stdlib_base_float32_to_float16( x[ i ] );
+		out = stdlib_base_float16_signbit( v );
+		printf( "%f => signbit: %" PRId8 "\n", x[ i ], out );
+	}
+}
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/examples/index.js b/lib/node_modules/@stdlib/number/float16/base/signbit/examples/index.js
new file mode 100644
index 000000000000..cc799f3bc13b
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/examples/index.js
@@ -0,0 +1,35 @@
+/**
+* @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.
+*/
+
+'use strict';
+
+var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+var randu = require( '@stdlib/random/base/randu' );
+var signbit = require( './../lib' );
+
+var sign;
+var x;
+var i;
+
+for ( i = 0; i < 100; i++ ) {
+	x = (randu()*100.0) - 50.0;
+	x = toFloat16( x );
+	sign = signbit( x );
+	sign = ( sign ) ? 'true' : 'false';
+	console.log( 'x: %d. signbit: %s.', x, sign );
+}
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/include.gypi b/lib/node_modules/@stdlib/number/float16/base/signbit/include.gypi
new file mode 100644
index 000000000000..ecfaf82a3279
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/include.gypi
@@ -0,0 +1,53 @@
+# @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.
+
+# 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': [
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).include; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Add-on destination directory:
+    'addon_output_dir': './src',
+
+    # Source files:
+    'src_files': [
+      '<(src_dir)/addon.c',
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).src; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Library dependencies:
+    'libraries': [
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libraries; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Library directories:
+    'library_dirs': [
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libpath; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+  }, # end variables
+}
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/include/stdlib/number/float16/base/signbit.h b/lib/node_modules/@stdlib/number/float16/base/signbit/include/stdlib/number/float16/base/signbit.h
new file mode 100644
index 000000000000..449083b1e517
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/include/stdlib/number/float16/base/signbit.h
@@ -0,0 +1,40 @@
+/**
+* @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_SIGNBIT_H
+#define STDLIB_NUMBER_FLOAT16_BASE_SIGNBIT_H
+
+#include <stdint.h>
+
+/*
+* 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
+
+/**
+* Returns an integer indicating whether the sign bit for a half-precision floating-point number is on (`1`) or off (`0`).
+*/
+int8_t stdlib_base_float16_signbit( const stdlib_float16_t x );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_NUMBER_FLOAT16_BASE_SIGNBIT_H
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/lib/index.js b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/index.js
new file mode 100644
index 000000000000..e60d8e19cb58
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/index.js
@@ -0,0 +1,50 @@
+/**
+* @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.
+*/
+
+'use strict';
+
+/**
+* Return a boolean indicating if the sign bit is on (true) or off (false).
+*
+* @module @stdlib/number/float16/base/signbit
+*
+* @example
+* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+* var signbit = require( '@stdlib/number/float16/base/signbit' );
+*
+* var bool = signbit( toFloat16( 4.0 ) );
+* // returns false
+*
+* bool = signbit( toFloat16( −5.960464477539063e−8 ) );
+* // returns true
+*
+* bool = signbit( 0.0 );
+* // returns false
+*
+* bool = signbit( -0.0 );
+* // returns true
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/lib/main.js b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/main.js
new file mode 100644
index 000000000000..8d91498e2719
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/main.js
@@ -0,0 +1,65 @@
+/**
+* @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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var toWord = require( '@stdlib/number/float16/base/to-word' );
+
+
+// MAIN //
+
+/**
+* Returns a boolean indicating if the sign bit is on (true) or off (false).
+*
+* @param {number} x - half-precision floating-point number
+* @returns {boolean} boolean indicating if sign bit is on or off
+*
+* @example
+* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+*
+* var bool = signbit( toFloat16( 4.0 ) );
+* // returns false
+*
+* @example
+* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+*
+* var bool = signbit( toFloat16( −5.960464477539063e−8 ) );
+* // returns true
+*
+* @example
+* var bool = signbit( 0.0 );
+* // returns false
+*
+* @example
+* var bool = signbit( -0.0 );
+* // returns true
+*/
+function signbit( x ) {
+	// Convert `x` to an unsigned 16-bit integer corresponding to the value's IEEE 754 binary representation:
+	var w = toWord( x );
+
+	// Shift off all bits which are not the sign bit and check if the sign bit is on:
+	return ( w >>> 15 ) ? true : false; // eslint-disable-line no-unneeded-ternary
+}
+
+
+// EXPORTS //
+
+module.exports = signbit;
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/lib/native.js b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/native.js
new file mode 100644
index 000000000000..07d674b9fd77
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/native.js
@@ -0,0 +1,63 @@
+/**
+* @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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var Boolean = require( '@stdlib/boolean/ctor' );
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Returns a boolean indicating if the sign bit is on (true) or off (false).
+*
+* @private
+* @param {number} x - input value
+* @returns {boolean} - boolean indicating if sign bit is on or off
+*
+* @example
+* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+*
+* var bool = signbit( toFloat16( 4.0 ) );
+* // returns false
+*
+* @example
+* var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+*
+* var bool = signbit( toFloat16( −5.960464477539063e−8 ) );
+* // returns true
+*
+* @example
+* var bool = signbit( 0.0 );
+* // returns false
+*
+* @example
+* var bool = signbit( -0.0 );
+* // returns true
+*/
+function signbit( x ) {
+	return Boolean( addon( x ) );
+}
+
+
+// EXPORTS //
+
+module.exports = signbit;
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/manifest.json b/lib/node_modules/@stdlib/number/float16/base/signbit/manifest.json
new file mode 100644
index 000000000000..cae3d8280d91
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/manifest.json
@@ -0,0 +1,81 @@
+{
+  "options": {
+    "task": "build",
+    "wasm": false
+  },
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "task": "build",
+      "wasm": false,
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/number/float16/base/to-word",
+        "@stdlib/number/float32/base/to-float16",
+        "@stdlib/number/float16/ctor"
+      ]
+    },
+    {
+      "task": "benchmark",
+      "wasm": false,
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/number/float16/base/to-word",
+        "@stdlib/number/float32/base/to-float16",
+        "@stdlib/number/float16/ctor"
+      ]
+    },
+    {
+      "task": "examples",
+      "wasm": false,
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/number/float16/base/to-word",
+        "@stdlib/number/float32/base/to-float16",
+        "@stdlib/number/float16/ctor"
+      ]
+    }
+  ]
+}
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/package.json b/lib/node_modules/@stdlib/number/float16/base/signbit/package.json
new file mode 100644
index 000000000000..a0848a0e7507
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/package.json
@@ -0,0 +1,76 @@
+{
+  "name": "@stdlib/number/float16/base/signbit",
+  "version": "0.0.0",
+  "description": "Return a boolean indicating if the sign bit for a half-precision floating-point number is on (true) or off (false).",
+  "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",
+  "gypfile": true,
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "include": "./include",
+    "lib": "./lib",
+    "src": "./src",
+    "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",
+    "stdtypes",
+    "base",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "types",
+    "type",
+    "signbit",
+    "sign",
+    "bit",
+    "floating-point",
+    "float16",
+    "float",
+    "half",
+    "positive",
+    "negative",
+    "ieee754",
+    "number"
+  ]
+}
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/src/Makefile b/lib/node_modules/@stdlib/number/float16/base/signbit/src/Makefile
new file mode 100644
index 000000000000..7733b6180cb4
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @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.
+#/
+
+# 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
+
+
+# RULES #
+
+#/
+# Removes generated files for building an add-on.
+#
+# @example
+# make clean-addon
+#/
+clean-addon:
+	$(QUIET) -rm -f *.o *.node
+
+.PHONY: clean-addon
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean: clean-addon
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/src/addon.c b/lib/node_modules/@stdlib/number/float16/base/signbit/src/addon.c
new file mode 100644
index 000000000000..472ea17421db
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/src/addon.c
@@ -0,0 +1,90 @@
+/**
+* @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.
+*/
+
+#include "stdlib/number/float16/base/signbit.h"
+#include "stdlib/number/float64/base/to_float16.h"
+#include <node_api.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <assert.h>
+
+/**
+* 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 = 1;
+	napi_value argv[ 1 ];
+	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 < 1 ) {
+		status = napi_throw_error( env, NULL, "invalid invocation. Insufficient arguments." );
+		assert( status == napi_ok );
+		return NULL;
+	}
+	if ( argc > 1 ) {
+		status = napi_throw_error( env, NULL, "invalid invocation. Too many arguments." );
+		assert( status == napi_ok );
+		return NULL;
+	}
+
+	napi_valuetype vtype0;
+	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;
+	}
+
+	double value;
+	status = napi_get_value_double( env, argv[ 0 ], &value );
+	assert( status == napi_ok );
+
+	int8_t out = stdlib_base_float16_signbit( stdlib_base_float64_to_float16( value ) );
+
+	napi_value v;
+	status = napi_create_int32( env, (int8_t)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/signbit/src/main.c b/lib/node_modules/@stdlib/number/float16/base/signbit/src/main.c
new file mode 100644
index 000000000000..0e7ca66dec44
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/src/main.c
@@ -0,0 +1,43 @@
+/**
+* @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.
+*/
+
+#include "stdlib/number/float16/base/signbit.h"
+#include "stdlib/number/float16/base/to_word.h"
+#include "stdlib/number/float16/ctor.h"
+#include <stdint.h>
+
+/**
+* Returns an integer indicating whether the sign bit for a half-precision floating-point number is on (`1`) or off (`0`).
+*
+* @param x       input value
+* @return        result
+*
+* @example
+* #include <stdint.h>
+*
+* int8_t out = stdlib_base_float16_signbit( 3.14f );
+*/
+int8_t stdlib_base_float16_signbit( const stdlib_float16_t x ) {
+	uint16_t w;
+
+	// Convert the floating-point value to a word (unsigned 16-bit integer) containing the exponent and sign:
+	stdlib_base_float16_to_word( x, &w );
+
+	// Shift off all bits which are not the sign bit and check if the sign bit is on:
+	return (int8_t)( w >> 15 );
+}
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js
new file mode 100644
index 000000000000..f34fae7510ce
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js
@@ -0,0 +1,70 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2018 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 randu = require( '@stdlib/random/base/randu' );
+var round = require( '@stdlib/math/base/special/round' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+var signbit = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof signbit, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns a boolean', function test( t ) {
+	t.strictEqual( typeof signbit(5.0), 'boolean', 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns a boolean indicating if a sign bit is on (true) or off (false)', function test( t ) {
+	var bool;
+	var sign;
+	var frac;
+	var exp;
+	var x;
+	var i;
+
+	for ( i = 0; i < 5000; i++ ) {
+		if ( randu() < 0.5 ) {
+			sign = -1.0;
+		} else {
+			sign = 1.0;
+		}
+		frac = randu() * 10.0;
+		exp = round( randu()*44.0 ) - 22;
+		x = sign * frac * pow( 10.0, exp );
+		x = toFloat16( x );
+		bool = signbit( x );
+		if ( sign < 0.0 ) {
+			t.strictEqual( bool, true, 'returns true for ' + x );
+		} else {
+			t.strictEqual( bool, false, 'returns false for ' + x );
+		}
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.native.js b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.native.js
new file mode 100644
index 000000000000..96a96b05a182
--- /dev/null
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.native.js
@@ -0,0 +1,79 @@
+/**
+* @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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var randu = require( '@stdlib/random/base/randu' );
+var round = require( '@stdlib/math/base/special/round' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var signbit = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( signbit instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof signbit, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns a boolean', opts, function test( t ) {
+	t.strictEqual( typeof signbit(5.0), 'boolean', 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns a boolean indicating if a sign bit is on (true) or off (false)', opts, function test( t ) {
+	var bool;
+	var sign;
+	var frac;
+	var exp;
+	var x;
+	var i;
+
+	for ( i = 0; i < 5000; i++ ) {
+		if ( randu() < 0.5 ) {
+			sign = -1.0;
+		} else {
+			sign = 1.0;
+		}
+		frac = randu() * 10.0;
+		exp = round( randu()*44.0 ) - 22;
+		x = sign * frac * pow( 10.0, exp );
+		x = toFloat16( x );
+		bool = signbit( x );
+		if ( sign < 0.0 ) {
+			t.strictEqual( bool, true, 'returns true for ' + x );
+		} else {
+			t.strictEqual( bool, false, 'returns false for ' + x );
+		}
+	}
+	t.end();
+});

From 2ac5c3f535950ee2cc6e0664bff77d4fe64b218b Mon Sep 17 00:00:00 2001
From: NEERAJ <neerajrpathak710@gmail.com>
Date: Sat, 27 Dec 2025 14:06:45 +0530
Subject: [PATCH 02/13] chore: updating variable import

---
 .../base/signbit/include/stdlib/number/float16/base/signbit.h    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/include/stdlib/number/float16/base/signbit.h b/lib/node_modules/@stdlib/number/float16/base/signbit/include/stdlib/number/float16/base/signbit.h
index 449083b1e517..528303317120 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/include/stdlib/number/float16/base/signbit.h
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/include/stdlib/number/float16/base/signbit.h
@@ -19,6 +19,7 @@
 #ifndef STDLIB_NUMBER_FLOAT16_BASE_SIGNBIT_H
 #define STDLIB_NUMBER_FLOAT16_BASE_SIGNBIT_H
 
+#include "stdlib/number/float16/ctor.h"
 #include <stdint.h>
 
 /*

From 01c3c5c4cd393ba7d17121abf40ea7eb2dab9b64 Mon Sep 17 00:00:00 2001
From: stdlib-bot <82920195+stdlib-bot@users.noreply.github.com>
Date: Sat, 27 Dec 2025 08:39:34 +0000
Subject: [PATCH 03/13] chore: update copyright years

---
 .../@stdlib/number/float16/base/signbit/test/test.js            | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js
index f34fae7510ce..6f75ee68ba1e 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js
@@ -1,7 +1,7 @@
 /**
 * @license Apache-2.0
 *
-* Copyright (c) 2018 The Stdlib Authors.
+* 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.

From 1ce9f82343716f53bfabbddff4a8b99cc7a352a5 Mon Sep 17 00:00:00 2001
From: Neeraj Pathak <neerajrpathak710@gmail.com>
Date: Sun, 28 Dec 2025 13:09:02 +0530
Subject: [PATCH 04/13] chore: updating C benchmark

Signed-off-by: Neeraj Pathak <neerajrpathak710@gmail.com>
---
 .../number/float16/base/signbit/benchmark/c/benchmark.c       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c
index 412b0139711f..7a92d0fada46 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c
@@ -82,9 +82,9 @@ static double tic( void ) {
 *
 * @return random number
 */
-static float rand_float( void ) {
+static double rand_double( void ) {
 	int r = rand();
-	return (float)r / ( (float)RAND_MAX + 1.0f );
+	return (double)r / ( (double)RAND_MAX + 1.0 );
 }
 
 /**

From 32d3c874a12e44933f0c09af7334794050f8a90f Mon Sep 17 00:00:00 2001
From: Neeraj Pathak <neerajrpathak710@gmail.com>
Date: Sun, 28 Dec 2025 13:13:57 +0530
Subject: [PATCH 05/13] chore: reverting benchmark change

Signed-off-by: Neeraj Pathak <neerajrpathak710@gmail.com>
---
 .../number/float16/base/signbit/benchmark/c/benchmark.c       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c
index 7a92d0fada46..412b0139711f 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/benchmark/c/benchmark.c
@@ -82,9 +82,9 @@ static double tic( void ) {
 *
 * @return random number
 */
-static double rand_double( void ) {
+static float rand_float( void ) {
 	int r = rand();
-	return (double)r / ( (double)RAND_MAX + 1.0 );
+	return (float)r / ( (float)RAND_MAX + 1.0f );
 }
 
 /**

From 324fdc302b6e42197fcc1d7fbefd27f7de2d1c84 Mon Sep 17 00:00:00 2001
From: Neeraj Pathak <neerajrpathak710@gmail.com>
Date: Tue, 30 Dec 2025 14:43:42 +0530
Subject: [PATCH 06/13] chore: apply suggested changes

Co-authored-by: Gururaj Gurram <143020143+gururaj1512@users.noreply.github.com>
Signed-off-by: Neeraj Pathak <neerajrpathak710@gmail.com>
---
 .../@stdlib/number/float16/base/signbit/src/main.c            | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/src/main.c b/lib/node_modules/@stdlib/number/float16/base/signbit/src/main.c
index 0e7ca66dec44..d0437708e138 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/src/main.c
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/src/main.c
@@ -28,9 +28,11 @@
 * @return        result
 *
 * @example
+* #include "stdlib/number/float16/ctor.h"
 * #include <stdint.h>
 *
-* int8_t out = stdlib_base_float16_signbit( 3.14f );
+* stdlib_float16_t x = stdlib_float16_from_bits( 51648 ); // => -11.5
+* int8_t out = stdlib_base_float16_signbit( x );
 */
 int8_t stdlib_base_float16_signbit( const stdlib_float16_t x ) {
 	uint16_t w;

From 6be2ec5fbb0db9694ed9ca55d730a9344babf3e5 Mon Sep 17 00:00:00 2001
From: Neeraj Pathak <neerajrpathak710@gmail.com>
Date: Tue, 30 Dec 2025 14:43:55 +0530
Subject: [PATCH 07/13] chore: apply suggested changes

Co-authored-by: Gururaj Gurram <143020143+gururaj1512@users.noreply.github.com>
Signed-off-by: Neeraj Pathak <neerajrpathak710@gmail.com>
---
 .../@stdlib/number/float16/base/signbit/manifest.json           | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/manifest.json b/lib/node_modules/@stdlib/number/float16/base/signbit/manifest.json
index cae3d8280d91..728c10803723 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/manifest.json
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/manifest.json
@@ -39,7 +39,7 @@
       "libpath": [],
       "dependencies": [
         "@stdlib/number/float16/base/to-word",
-        "@stdlib/number/float32/base/to-float16",
+        "@stdlib/number/float64/base/to-float16",
         "@stdlib/number/float16/ctor"
       ]
     },

From 71145161d00071db3c7ed428b07dd1cf84c12919 Mon Sep 17 00:00:00 2001
From: gururaj1512 <gururajgurram1512@gmail.com>
Date: Tue, 30 Dec 2025 14:44:28 +0530
Subject: [PATCH 08/13] fix: correct negative float representation in examples

---
 .../@stdlib/number/float16/base/signbit/docs/repl.txt           | 2 +-
 .../@stdlib/number/float16/base/signbit/docs/types/index.d.ts   | 2 +-
 .../@stdlib/number/float16/base/signbit/lib/index.js            | 2 +-
 .../@stdlib/number/float16/base/signbit/lib/main.js             | 2 +-
 .../@stdlib/number/float16/base/signbit/lib/native.js           | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt
index 92092816eb0e..00c293f763cf 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt
@@ -16,7 +16,7 @@
     --------
     > var bool = {{alias}}( {{alias:@stdlib/number/float64/base/to-float16}}( 4.0 ) )
     false
-    > bool = {{alias}}( {{alias:@stdlib/number/float64/base/to-float16}}( −5.960464477539063e−8 ) )
+    > bool = {{alias}}( {{alias:@stdlib/number/float64/base/to-float16}}( -5.960464477539063e-8 ) )
     true
     > bool = {{alias}}( 0.0 )
     false
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/index.d.ts b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/index.d.ts
index 32d4cd6eece4..4a94039bbb3b 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/types/index.d.ts
@@ -33,7 +33,7 @@
 * @example
 * var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
 *
-* var bool = signbit( toFloat16( −5.960464477539063e−8 ) );
+* var bool = signbit( toFloat16( -5.960464477539063e-8 ) );
 * // returns true
 *
 * @example
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/lib/index.js b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/index.js
index e60d8e19cb58..309444846b35 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/lib/index.js
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/index.js
@@ -30,7 +30,7 @@
 * var bool = signbit( toFloat16( 4.0 ) );
 * // returns false
 *
-* bool = signbit( toFloat16( −5.960464477539063e−8 ) );
+* bool = signbit( toFloat16( -5.960464477539063e-8 ) );
 * // returns true
 *
 * bool = signbit( 0.0 );
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/lib/main.js b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/main.js
index 8d91498e2719..503e677df1ef 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/lib/main.js
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/main.js
@@ -40,7 +40,7 @@ var toWord = require( '@stdlib/number/float16/base/to-word' );
 * @example
 * var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
 *
-* var bool = signbit( toFloat16( −5.960464477539063e−8 ) );
+* var bool = signbit( toFloat16( -5.960464477539063e-8 ) );
 * // returns true
 *
 * @example
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/lib/native.js b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/native.js
index 07d674b9fd77..53f7ec38ea65 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/lib/native.js
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/lib/native.js
@@ -42,7 +42,7 @@ var addon = require( './../src/addon.node' );
 * @example
 * var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
 *
-* var bool = signbit( toFloat16( −5.960464477539063e−8 ) );
+* var bool = signbit( toFloat16( -5.960464477539063e-8 ) );
 * // returns true
 *
 * @example

From 2c046186d8d32ca691d725fb1a9198a60afa122b Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Tue, 30 Dec 2025 01:42:01 -0800
Subject: [PATCH 09/13] docs: update example

Signed-off-by: Athan <kgryte@gmail.com>
---
 .../number/float16/base/signbit/README.md      | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/README.md b/lib/node_modules/@stdlib/number/float16/base/signbit/README.md
index 3be71f2a3631..2155085fe459 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/README.md
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/README.md
@@ -62,20 +62,16 @@ bool = signbit( -0.0 );
 
 ```javascript
 var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
-var randu = require( '@stdlib/random/base/randu' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var map = require( '@stdlib/array/base/map' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
 var signbit = require( '@stdlib/number/float16/base/signbit' );
 
-var sign;
-var x;
-var i;
+// Create an array of random half-precision floating-point numbers:
+var x = map( uniform( 100, -50.0, 50.0 ), toFloat16 );
 
-for ( i = 0; i < 100; i++ ) {
-    x = (randu()*100.0) - 50.0;
-    x = toFloat16( x );
-    sign = signbit( x );
-    sign = ( sign ) ? 'true' : 'false';
-    console.log( 'x: %d. signbit: %s.', x, sign );
-}
+// Determine whether the sign bit is on or off for each number:
+logEachMap( 'x: %0.4f => %s', x, signbit );
 ```
 
 </section>

From 0aaa3241ecc6f5e5f7a13e96d64ee751d4c23628 Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Tue, 30 Dec 2025 01:42:45 -0800
Subject: [PATCH 10/13] docs: update example

Signed-off-by: Athan <kgryte@gmail.com>
---
 .../float16/base/signbit/examples/index.js     | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/examples/index.js b/lib/node_modules/@stdlib/number/float16/base/signbit/examples/index.js
index cc799f3bc13b..296a551d7848 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/examples/index.js
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/examples/index.js
@@ -19,17 +19,13 @@
 'use strict';
 
 var toFloat16 = require( '@stdlib/number/float64/base/to-float16' );
-var randu = require( '@stdlib/random/base/randu' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var map = require( '@stdlib/array/base/map' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
 var signbit = require( './../lib' );
 
-var sign;
-var x;
-var i;
+// Create an array of random half-precision floating-point numbers:
+var x = map( uniform( 100, -50.0, 50.0 ), toFloat16 );
 
-for ( i = 0; i < 100; i++ ) {
-	x = (randu()*100.0) - 50.0;
-	x = toFloat16( x );
-	sign = signbit( x );
-	sign = ( sign ) ? 'true' : 'false';
-	console.log( 'x: %d. signbit: %s.', x, sign );
-}
+// Determine whether the sign bit is on or off for each number:
+logEachMap( 'x: %0.4f => %s', x, signbit );

From 124eefb3f56c55cb889308c5743fcdabc0a68436 Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Tue, 30 Dec 2025 01:45:12 -0800
Subject: [PATCH 11/13] docs: fix type

Signed-off-by: Athan <kgryte@gmail.com>
---
 .../@stdlib/number/float16/base/signbit/docs/repl.txt           | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt
index 00c293f763cf..586eddac0649 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/docs/repl.txt
@@ -4,7 +4,7 @@
 
     Parameters
     ----------
-    x: float
+    x: number
         Half-precision floating-point number.
 
     Returns

From 557b15d9197a2985a2050cd890e7fc031eb27461 Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Tue, 30 Dec 2025 01:48:28 -0800
Subject: [PATCH 12/13] fix: perform correct type cast

Signed-off-by: Athan <kgryte@gmail.com>
---
 .../@stdlib/number/float16/base/signbit/src/addon.c             | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/src/addon.c b/lib/node_modules/@stdlib/number/float16/base/signbit/src/addon.c
index 472ea17421db..5a78e3b343ca 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/src/addon.c
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/src/addon.c
@@ -67,7 +67,7 @@ static napi_value addon( napi_env env, napi_callback_info info ) {
 	int8_t out = stdlib_base_float16_signbit( stdlib_base_float64_to_float16( value ) );
 
 	napi_value v;
-	status = napi_create_int32( env, (int8_t)out, &v );
+	status = napi_create_int32( env, (int32_t)out, &v );
 	assert( status == napi_ok );
 
 	return v;

From b565cf772c4a399e69e6a6c4c4db167039631819 Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Tue, 30 Dec 2025 01:49:51 -0800
Subject: [PATCH 13/13] Apply suggestions from code review

Signed-off-by: Athan <kgryte@gmail.com>
---
 .../@stdlib/number/float16/base/signbit/test/test.js            | 2 +-
 .../@stdlib/number/float16/base/signbit/test/test.native.js     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js
index 6f75ee68ba1e..0b214f7b3abb 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.js
@@ -37,7 +37,7 @@ tape( 'main export is a function', function test( t ) {
 });
 
 tape( 'the function returns a boolean', function test( t ) {
-	t.strictEqual( typeof signbit(5.0), 'boolean', 'returns expected value' );
+	t.strictEqual( typeof signbit( 5.0 ), 'boolean', 'returns expected value' );
 	t.end();
 });
 
diff --git a/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.native.js b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.native.js
index 96a96b05a182..75b7c39d1117 100644
--- a/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.native.js
+++ b/lib/node_modules/@stdlib/number/float16/base/signbit/test/test.native.js
@@ -46,7 +46,7 @@ tape( 'main export is a function', opts, function test( t ) {
 });
 
 tape( 'the function returns a boolean', opts, function test( t ) {
-	t.strictEqual( typeof signbit(5.0), 'boolean', 'returns expected value' );
+	t.strictEqual( typeof signbit( 5.0 ), 'boolean', 'returns expected value' );
 	t.end();
 });