README.md (1872B)
1 <!-- 2 3 @license Apache-2.0 4 5 Copyright (c) 2018 The Stdlib Authors. 6 7 Licensed under the Apache License, Version 2.0 (the "License"); 8 you may not use this file except in compliance with the License. 9 You may obtain a copy of the License at 10 11 http://www.apache.org/licenses/LICENSE-2.0 12 13 Unless required by applicable law or agreed to in writing, software 14 distributed under the License is distributed on an "AS IS" BASIS, 15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 See the License for the specific language governing permissions and 17 limitations under the License. 18 19 --> 20 21 # Min Safe Integer 22 23 > Minimum safe [single-precision floating-point][ieee754] integer. 24 25 <section class="usage"> 26 27 ## Usage 28 29 ```javascript 30 var FLOAT32_MIN_SAFE_INTEGER = require( '@stdlib/constants/float32/min-safe-integer' ); 31 ``` 32 33 #### FLOAT32_MIN_SAFE_INTEGER 34 35 The minimum [safe][safe-integers] [single-precision floating-point][ieee754] integer. 36 37 ```javascript 38 var bool = ( FLOAT32_MIN_SAFE_INTEGER === -16777215 ); 39 // returns true 40 ``` 41 42 </section> 43 44 <!-- /.usage --> 45 46 <section class="examples"> 47 48 ## Examples 49 50 <!-- eslint no-undef: "error" --> 51 52 ```javascript 53 var randu = require( '@stdlib/random/base/randu' ); 54 var round = require( '@stdlib/math/base/special/round' ); 55 var pow = require( '@stdlib/math/base/special/pow' ); 56 var FLOAT32_MIN_SAFE_INTEGER = require( '@stdlib/constants/float32/min-safe-integer' ); 57 58 var min; 59 var x; 60 var i; 61 62 min = -pow( 2.0, 26 ); 63 for ( i = 0; i < 100; i++ ) { 64 x = round( randu() * min ); 65 if ( x < FLOAT32_MIN_SAFE_INTEGER ) { 66 console.log( 'Unsafe: %d', x ); 67 } else { 68 console.log( 'Safe: %d', x ); 69 } 70 } 71 ``` 72 73 </section> 74 75 <!-- /.examples --> 76 77 <section class="links"> 78 79 [safe-integers]: http://www.2ality.com/2013/10/safe-integers.html 80 81 [ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985 82 83 </section> 84 85 <!-- /.links -->