// // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo // // The contents of this file are covered under the licence agreement in the // file "LICENCE" distributed with Cforall. // // math4.cfa -- // // Author : Peter A. Buhr // Created On : Thu May 24 20:56:54 2018 // Last Modified By : Peter A. Buhr // Last Modified On : Tue Dec 4 18:15:01 2018 // Update Count : 4 // #include #include int main( void ) { float f; double d; long double l; //---------------------- Nearest Integer ---------------------- sout | "floor:" | floor( 1.2F ) | floor( 1.2D ) | floor( 1.2L ); sout | "ceil:" | ceil( 1.6F ) | ceil( 1.6D ) | ceil( 1.6L ); sout | "trunc:" | trunc( 3.5F ) | trunc( 3.5D ) | trunc( 3.5L ); sout | "rint:" | (float)rint( 1.5F ) | (double)rint( 1.5D ) | (long double)rint( 1.5L ); sout | "rint:" | (long int)rint( 1.5F ) | (long int)rint( 1.5D ) | (long int)rint( 1.5L ); sout | "rint:" | (long long int)rint( 1.5F ) | (long long int)rint( 1.5D ) | (long long int)rint( 1.5L ); sout | "lrint:" | lrint( 1.5F ) | lrint( 1.5D ) | lrint( 1.5L ); sout | "llrint:" | llrint( 1.5F ) | llrint( 1.5D ) | llrint( 1.5L ); sout | "nearbyint:" | nearbyint( 3.5F ) | nearbyint( 3.5D ) | nearbyint( 3.5L ); sout | "round:" | (float)round( 1.5F ) | (double)round( 1.5D ) | (long double)round( 1.5L ); sout | "round:" | (long int)round( 1.5F ) | (long int)round( 1.5D ) | (long int)round( 1.5L ); sout | "round:" | (long long int)round( 1.5F ) | (long long int)round( 1.5D ) | (long long int)round( 1.5L ); sout | "lround:" | lround( 1.5F ) | lround( 1.5D ) | lround( 1.5L ); sout | "llround:" | llround( 1.5F ) | llround( 1.5D ) | llround( 1.5L ); //---------------------- Manipulation ---------------------- sout | "copysign:" | copysign( 1.0F, -1.0F ) | copysign( 1.0D, -1.0D ) | copysign( 1.0L, -1.0L ); int exp; f = frexp( 4.0F, &exp ); sout | "frexp:" | f | exp | nonl; d = frexp( 4.0D, &exp ); sout | d | exp | nonl; l = frexp( 4.0L, &exp ); sout | l | exp; sout | "ldexp:" | ldexp( 2.0F, 2 ) | ldexp( 2.0D, 2 ) | ldexp( 2.0L, 2 ); float fi; double di; long double ldi; f = modf( 2.3F, &fi ); sout | "modf:" | fi | f | nonl; d = modf( 2.3D, &di ); sout | di | d | nonl; l = modf( 2.3L, &ldi ); sout | ldi | l; sout | "modf:" | modf( 2.3F ) | modf( 2.3D ) | modf( 2.3L ); sout | "nextafter:" | nextafter( 2.0F, 3.0F ) | nextafter( 2.0D, 3.0D ) | nextafter( 2.0L, 3.0L ); sout | "nexttoward:" | nexttoward( 2.0F, 3.0F ) | nexttoward( 2.0D, 3.0D ) | nexttoward( 2.0L, 3.0L ); sout | "scalbn:" | scalbn( 2.0F, 3 ) | scalbn( 2.0D, 3 ) | scalbn( 2.0L, 3 ); sout | "scalbln:" | scalbln( 2.0F, 3L ) | scalbln( 2.0D, 3L ) | scalbln( 2.0L, 3L ); } // main // Local Variables: // // tab-width: 4 // // compile-command: "cfa math3.cfa" // // End: //