Mercurial > projects > dstress
view run/float_22.d @ 812:eaf0a0d20b60
Walter <walter@digitalmars.com>
2006-01-29
mail:002601c62518$68a870b0$0400a8c0@colossus
author | thomask |
---|---|
date | Sun, 05 Feb 2006 09:58:23 +0000 |
parents | e77e4444c170 |
children |
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// $HeadURL$ // $Date$ // $Author$ // @author@ Derek Parnell <derek@psych.ward> // @date@ 2005-04-02 // @uri@ news:5efpfwr0e1l5$.ks45nx0xz2zf$.dlg@40tude.net // For floating point operations and expression intermediate values, // a greater precision can be used than the type of the expression. // Only the minimum precision is set by the types of the operands, // not the maximum. module dstress.run.float_22; int main(){ float f = 0.0000195f; assert(typeid(typeof(0.0000195f)) == typeid(float)); real diff = (0.5f + f * 1e6f) - (0.5f + 0.0000195f * 1e6f); if(diff < 0){ diff *= -1; } if(diff < float.epsilon * 8){ return 0; } }