@stdlib/number-float64-base-to-int32
v0.2.2
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Convert a double-precision floating-point number to a signed 32-bit integer.
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toInt32
Convert a double-precision floating-point number to a signed 32-bit integer.
Installation
npm install @stdlib/number-float64-base-to-int32
Usage
var float64ToInt32 = require( '@stdlib/number-float64-base-to-int32' );
float64ToInt32( x )
Converts a double-precision floating-point number to a signed 32-bit integer.
var y = float64ToInt32( 4294967295.0 );
// returns -1
y = float64ToInt32( 3.14 );
// returns 3
y = float64ToInt32( -3.14 );
// returns -3
y = float64ToInt32( NaN );
// returns 0
y = float64ToInt32( Infinity );
// returns 0
y = float64ToInt32( -Infinity );
// returns 0
Examples
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var MAX_INT = require( '@stdlib/constants-uint32-max' );
var float64ToInt32 = require( '@stdlib/number-float64-base-to-int32' );
var int32;
var f64;
var i;
for ( i = 0; i < 500; i++ ) {
// Generate a random double-precision floating-point integer:
f64 = round( randu()*MAX_INT );
// Convert the double-precision floating-point integer to a signed integer:
int32 = float64ToInt32( f64 );
console.log( 'float64: %d => int32: %d', f64, int32 );
}
See Also
@stdlib/number-float64/base/to-uint32
: convert a double-precision floating-point number to an unsigned 32-bit integer.
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.
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License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.