1 /** \file test-integers.c 2 * \brief Check assumptions about integer types (sizes, ranges). 3 * 4 * Copyright (C) 2007 Hans Ulrich Niedermann <gp (at) n-dimensional.de> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the 18 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301 USA. 20 */ 21 22 23 #include "libexif/_stdint.h" 24 #include <stdlib.h> 25 #include <stdio.h> 26 27 28 typedef enum { 29 EN_A, 30 EN_B, 31 EN_C, 32 EN_D, 33 EN_E, 34 EN_F 35 } enum_t; 36 37 38 #if defined(__GNUC__) && (__GNUC__ >= 4) 39 # define CHECK(condition) \ 40 if (!(condition)) { \ 41 fprintf(stderr, "%s:%d: check failed: %s\n", \ 42 __FILE__, __LINE__, #condition); \ 43 errors++; \ 44 } 45 #else 46 # define CHECK(condition) \ 47 if (!(condition)) { \ 48 abort(); \ 49 } 50 #endif 51 52 53 int main() 54 { 55 unsigned int errors = 0; 56 57 /* libexif assumes unsigned ints are not smaller than 32bit in many places */ 58 CHECK(sizeof(unsigned int) >= sizeof(uint32_t)); 59 60 /* libexif assumes that enums fit into ints */ 61 CHECK(sizeof(enum_t) <= sizeof(int)); 62 63 return (errors>0)?1:0; 64 } 65
