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    @stdlib/number-float64-base-to-int32
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    0.0.7 • Public • Published

    toInt32

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    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 );
    }

    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 © 2016-2022. The Stdlib Authors.

    Install

    npm i @stdlib/number-float64-base-to-int32

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    46

    Version

    0.0.7

    License

    Apache-2.0

    Unpacked Size

    37 kB

    Total Files

    9

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser