@stdlib/number-float32-base-to-int32
TypeScript icon, indicating that this package has built-in type declarations

0.2.1 • Public • Published
About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

toInt32

NPM version Build Status Coverage Status

Convert a single-precision floating-point number to a signed 32-bit integer.

Installation

npm install @stdlib/number-float32-base-to-int32

Usage

var float32ToInt32 = require( '@stdlib/number-float32-base-to-int32' );

float32ToInt32( x )

Converts a single-precision floating-point number to a signed 32-bit integer.

var float64ToFloat32 = require( '@stdlib/number-float64-base-to-float32' );

var y = float32ToInt32( float64ToFloat32( 4294967295.0 ) );
// returns 0

y = float32ToInt32( float64ToFloat32( 3.14 ) );
// returns 3

y = float32ToInt32( float64ToFloat32( -3.14 ) );
// returns -3

y = float32ToInt32( float64ToFloat32( NaN ) );
// returns 0

y = float32ToInt32( float64ToFloat32( Infinity ) );
// returns 0

y = float32ToInt32( float64ToFloat32( -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 float64ToFloat32 = require( '@stdlib/number-float64-base-to-float32' );
var float32ToInt32 = require( '@stdlib/number-float32-base-to-int32' );

var int32;
var f32;
var i;

for ( i = 0; i < 500; i++ ) {
    // Generate a random single-precision floating-point integer:
    f32 = float64ToFloat32( round( randu()*MAX_INT ) );

    // Convert the single-precision floating-point integer to a signed integer:
    int32 = float32ToInt32( f32 );

    console.log( 'float32: %d => int32: %d', f32, int32 );
}

See Also


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

Chat


License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.

Package Sidebar

Install

npm i @stdlib/number-float32-base-to-int32

Homepage

stdlib.io

Weekly Downloads

14

Version

0.2.1

License

Apache-2.0

Unpacked Size

28.8 kB

Total Files

11

Last publish

Collaborators

  • stdlib-bot
  • kgryte
  • planeshifter
  • rreusser