sub

Subtract two unsigned 8-bit integers.

Installation

npm install @stdlib/number-uint8-base-sub

Usage

var sub = require( '@stdlib/number-uint8-base-sub' );

sub( x, y )

Subtracts two unsigned 8-bit integers.

var v = sub( 5, 1 );
// returns 4

v = sub( 5, 2 );
// returns 3

v = sub( 5, 0 );
// returns 5

Notes

• The function performs C-like subtraction of two unsigned 8-bit integers, including wraparound semantics.

Examples

var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var sub = require( '@stdlib/number-uint8-base-sub' );

var opts = {
    'dtype': 'uint8'
};

// Create arrays of random values:
var x = discreteUniform( 100, 0, 50, opts );
var y = discreteUniform( 100, 0, 50, opts );

// Perform element-wise subtraction:
logEachMap( '%d - %d = %d', x, y, sub );

C APIs

Usage

#include "stdlib/number/uint8/base/sub.h"

stdlib_base_uint8_sub( x, y )

Subtracts two unsigned 8-bit integers.

#include <stdint.h>

uint8_t v = stdlib_base_uint8_sub( 5, 2 );
// returns 3

The function accepts the following arguments:

• x: [in] uint8_t first input value.
• y: [in] uint8_t second input value.

uint8_t stdlib_base_uint8_sub( const uint8_t x, const uint8_t y );

Examples

#include "stdlib/number/uint8/base/sub.h"
#include <stdint.h>
#include <stdio.h>

int main( void ) {
    const uint8_t x[] = { 3, 5, 10, 12 };
    const uint8_t y[] = { 6, 2, 11, 24 };

    uint8_t z;
    int i;
    for ( i = 0; i < 4; i++ ) {
        z = stdlib_base_uint8_sub( x[ i ], y[ i ] );
        printf( "%d - %d = %d\n", x[ i ], y[ i ], z );
    }
}

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2026. The Stdlib Authors.