| 1 | //
|
|---|
| 2 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
|
|---|
| 3 | //
|
|---|
| 4 | // The contents of this file are covered under the licence agreement in the
|
|---|
| 5 | // file "LICENCE" distributed with Cforall.
|
|---|
| 6 | //
|
|---|
| 7 | // math4.cfa --
|
|---|
| 8 | //
|
|---|
| 9 | // Author : Peter A. Buhr
|
|---|
| 10 | // Created On : Thu May 24 20:56:54 2018
|
|---|
| 11 | // Last Modified By : Peter A. Buhr
|
|---|
| 12 | // Last Modified On : Tue Dec 4 18:15:01 2018
|
|---|
| 13 | // Update Count : 4
|
|---|
| 14 | //
|
|---|
| 15 |
|
|---|
| 16 | #include <fstream.hfa>
|
|---|
| 17 | #include <math.hfa>
|
|---|
| 18 |
|
|---|
| 19 | int main( void ) {
|
|---|
| 20 | float f;
|
|---|
| 21 | double d;
|
|---|
| 22 | long double l;
|
|---|
| 23 |
|
|---|
| 24 | //---------------------- Nearest Integer ----------------------
|
|---|
| 25 |
|
|---|
| 26 | sout | "floor:" | floor( 1.2F ) | floor( 1.2D ) | floor( 1.2L );
|
|---|
| 27 | sout | "ceil:" | ceil( 1.6F ) | ceil( 1.6D ) | ceil( 1.6L );
|
|---|
| 28 | sout | "trunc:" | trunc( 3.5F ) | trunc( 3.5D ) | trunc( 3.5L );
|
|---|
| 29 | sout | "rint:" | (float)rint( 1.5F ) | (double)rint( 1.5D ) | (long double)rint( 1.5L );
|
|---|
| 30 | sout | "rint:" | (long int)rint( 1.5F ) | (long int)rint( 1.5D ) | (long int)rint( 1.5L );
|
|---|
| 31 | sout | "rint:" | (long long int)rint( 1.5F ) | (long long int)rint( 1.5D ) | (long long int)rint( 1.5L );
|
|---|
| 32 | sout | "lrint:" | lrint( 1.5F ) | lrint( 1.5D ) | lrint( 1.5L );
|
|---|
| 33 | sout | "llrint:" | llrint( 1.5F ) | llrint( 1.5D ) | llrint( 1.5L );
|
|---|
| 34 | sout | "nearbyint:" | nearbyint( 3.5F ) | nearbyint( 3.5D ) | nearbyint( 3.5L );
|
|---|
| 35 | sout | "round:" | (float)round( 1.5F ) | (double)round( 1.5D ) | (long double)round( 1.5L );
|
|---|
| 36 | sout | "round:" | (long int)round( 1.5F ) | (long int)round( 1.5D ) | (long int)round( 1.5L );
|
|---|
| 37 | sout | "round:" | (long long int)round( 1.5F ) | (long long int)round( 1.5D ) | (long long int)round( 1.5L );
|
|---|
| 38 | sout | "lround:" | lround( 1.5F ) | lround( 1.5D ) | lround( 1.5L );
|
|---|
| 39 | sout | "llround:" | llround( 1.5F ) | llround( 1.5D ) | llround( 1.5L );
|
|---|
| 40 |
|
|---|
| 41 | //---------------------- Manipulation ----------------------
|
|---|
| 42 |
|
|---|
| 43 | sout | "copysign:" | copysign( 1.0F, -1.0F ) | copysign( 1.0D, -1.0D ) | copysign( 1.0L, -1.0L );
|
|---|
| 44 | int exp;
|
|---|
| 45 | f = frexp( 4.0F, &exp );
|
|---|
| 46 | sout | "frexp:" | f | exp | nonl;
|
|---|
| 47 | d = frexp( 4.0D, &exp );
|
|---|
| 48 | sout | d | exp | nonl;
|
|---|
| 49 | l = frexp( 4.0L, &exp );
|
|---|
| 50 | sout | l | exp;
|
|---|
| 51 | sout | "ldexp:" | ldexp( 2.0F, 2 ) | ldexp( 2.0D, 2 ) | ldexp( 2.0L, 2 );
|
|---|
| 52 | float fi;
|
|---|
| 53 | double di;
|
|---|
| 54 | long double ldi;
|
|---|
| 55 | f = modf( 2.3F, &fi );
|
|---|
| 56 | sout | "modf:" | fi | f | nonl;
|
|---|
| 57 | d = modf( 2.3D, &di );
|
|---|
| 58 | sout | di | d | nonl;
|
|---|
| 59 | l = modf( 2.3L, &ldi );
|
|---|
| 60 | sout | ldi | l;
|
|---|
| 61 | sout | "modf:" | modf( 2.3F ) | modf( 2.3D ) | modf( 2.3L );
|
|---|
| 62 | sout | "nextafter:" | nextafter( 2.0F, 3.0F ) | nextafter( 2.0D, 3.0D ) | nextafter( 2.0L, 3.0L );
|
|---|
| 63 | sout | "nexttoward:" | nexttoward( 2.0F, 3.0F ) | nexttoward( 2.0D, 3.0D ) | nexttoward( 2.0L, 3.0L );
|
|---|
| 64 |
|
|---|
| 65 | sout | "scalbn:" | scalbn( 2.0F, 3 ) | scalbn( 2.0D, 3 ) | scalbn( 2.0L, 3 );
|
|---|
| 66 | sout | "scalbln:" | scalbln( 2.0F, 3L ) | scalbln( 2.0D, 3L ) | scalbln( 2.0L, 3L );
|
|---|
| 67 | } // main
|
|---|
| 68 |
|
|---|
| 69 | // Local Variables: //
|
|---|
| 70 | // tab-width: 4 //
|
|---|
| 71 | // compile-command: "cfa math3.cfa" //
|
|---|
| 72 | // End: //
|
|---|
