1/* 2** Copyright (C) 2006-2012 Erik de Castro Lopo <erikd@mega-nerd.com> 3** 4** This program is free software; you can redistribute it and/or modify 5** it under the terms of the GNU Lesser General Public License as published by 6** the Free Software Foundation; either version 2.1 of the License, or 7** (at your option) any later version. 8** 9** This program is distributed in the hope that it will be useful, 10** but WITHOUT ANY WARRANTY; without even the implied warranty of 11** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12** GNU Lesser General Public License for more details. 13** 14** You should have received a copy of the GNU Lesser General Public License 15** along with this program; if not, write to the Free Software 16** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17*/ 18 19#include "sfconfig.h" 20 21#include <stdio.h> 22#include <stdlib.h> 23#include <string.h> 24#include <stdarg.h> 25#include <errno.h> 26#include <math.h> 27 28#include "common.h" 29#include "test_main.h" 30 31void 32test_float_convert (void) 33{ static float data [] = 34 { 0.0, 1.0, -1.0, 1.0 * M_PI, -1.0 * M_PI, 35 1e9, -1e9, 1e-9, -1e-9, 1e-10, -1e-10, 36 1e-19, -1e-19, 1e19, -1e19, 1e-20, -1e-20, 37 } ; 38 39 int k ; 40 41 print_test_name (__func__) ; 42 43 for (k = 0 ; k < ARRAY_LEN (data) ; k++) 44 { unsigned char bytes [4] ; 45 float test ; 46 47 float32_le_write (data [k], bytes) ; 48 test = float32_le_read (bytes) ; 49 50 if (fabs (data [k] - test) > 1e-20) 51 { printf ("\n\nLine %d : Test %d, little endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ; 52 exit (1) ; 53 } ; 54 55 float32_be_write (data [k], bytes) ; 56 test = float32_be_read (bytes) ; 57 58 if (fabs (data [k] - test) > 1e-20) 59 { printf ("\n\nLine %d : Test %d, big endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ; 60 exit (1) ; 61 } ; 62 63 } ; 64 65 puts ("ok") ; 66} /* test_float_convert */ 67 68void 69test_double_convert (void) 70{ static double data [] = 71 { 0.0, 1.0, -1.0, 1.0 * M_PI, -1.0 * M_PI, 72 1e9, -1e9, 1e-9, -1e-9, 1e-10, -1e-10, 73 1e-19, -1e-19, 1e19, -1e19, 1e-20, -1e-20, 74 } ; 75 76 int k ; 77 78 print_test_name (__func__) ; 79 80 for (k = 0 ; k < ARRAY_LEN (data) ; k++) 81 { unsigned char bytes [8] ; 82 double test ; 83 84 double64_le_write (data [k], bytes) ; 85 test = double64_le_read (bytes) ; 86 87 if (fabs (data [k] - test) > 1e-20) 88 { printf ("\n\nLine %d : Test %d, little endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ; 89 exit (1) ; 90 } ; 91 92 double64_be_write (data [k], bytes) ; 93 test = double64_be_read (bytes) ; 94 95 if (fabs (data [k] - test) > 1e-20) 96 { printf ("\n\nLine %d : Test %d, big endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ; 97 exit (1) ; 98 } ; 99 100 } ; 101 102 puts ("ok") ; 103} /* test_double_convert */ 104 105