isEven

Test if a 32-bit integer is even.

Usage

var isEven = require( '@stdlib/math/base/assert/int32-is-even' );

isEven( x )

Tests if 32-bit integer is even.

var bool = isEven( 5 );
// returns false

bool = isEven( -2 );
// returns true

bool = isEven( 0 );
// returns true

Examples

var randu = require( '@stdlib/random/base/randu' );
var round = require( '@stdlib/math/base/special/round' );
var isEven = require( '@stdlib/math/base/assert/int32-is-even' );

var bool;
var x;
var i;

for ( i = 0; i < 100; i++ ) {
    x = round( randu()*100.0 );
    bool = isEven( x );
    console.log( '%d is %s', x, ( bool ) ? 'even' : 'not even' );
}

C APIs

Usage

#include "stdlib/math/base/assert/int32_is_even.h"

stdlib_base_int32_is_even( x )

Tests if 32-bit integer is even.

#include <stdbool.h>

bool out = stdlib_base_int32_is_even( -2 );
// returns true

out = stdlib_base_int32_is_even( 5 );
// returns false

The function accepts the following arguments:

x: [in] int32_t input value.

bool stdlib_base_int32_is_even( const int32_t x );

Examples

#include "stdlib/math/base/assert/int32_is_even.h"
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>

int main( void ) {
    const int32_t x[] = { 5, -5, 3, -3, 0, 2 };

    bool b;
    int i;
    for ( i = 0; i < 5; i++ ) {
        b = stdlib_base_int32_is_even( x[ i ] );
        printf( "Value: %d. int32 Is even? %s.\n", x[ i ], ( b ) ? "True" : "False" );
    }
}