1 /* Trampoline test */ 2 3 /* 4 * Copyright 1995-2017 Bruno Haible <bruno@clisp.org> 5 * 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program 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 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program. If not, see <https://www.gnu.org/licenses/>. 18 */ 19 20 #include "config.h" /* Define __${host_cpu}__ */ 21 22 #include <stdio.h> 23 #include <stdlib.h> 24 25 #include "callback.h" 26 27 #define MAGIC1 0x9db9af42 28 #define MAGIC2 0xa2f9d045 29 #define MAGIC3 0x7aff3cb4 30 f(int x)31int f (int x) 32 { 33 return x + MAGIC3; 34 } 35 vf(void * data,va_alist alist)36void vf (void* data, va_alist alist) 37 { 38 if (data != (void*)MAGIC1) { printf("wrong data\n"); exit(1); } 39 va_start_int(alist); 40 {int a = va_arg_int(alist); 41 int r = f(a); 42 va_return_int(alist, r); 43 }} 44 main()45int main () 46 { 47 callback_t cf = alloc_callback(&vf, (void*)MAGIC1); 48 if ((*cf)(MAGIC2) == MAGIC2+MAGIC3) 49 { free_callback(cf); printf("Works, test1 passed.\n"); exit(0); } 50 else 51 { printf("Doesn't work!\n"); exit(1); } 52 } 53