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/* Trampoline test */
/*
* Copyright 1995-2017 Bruno Haible <bruno@clisp.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include "trampoline.h"
#define MAGIC1 0x9db9af42
#define MAGIC2 0x614a13c9
static int magic = MAGIC1;
void* function_data;
int f (int x)
{ return *(int*)function_data + x; }
int main ()
{
trampoline_function_t cf = alloc_trampoline((trampoline_function_t)&f, &function_data, &magic);
/* calling cf shall set function_data = &magic and then call f(x),
* thus returning magic + x.
*/
if (((*cf)(MAGIC2) == MAGIC1+MAGIC2) && (function_data == &magic))
{ free_trampoline(cf); printf("Works, test1 passed.\n"); exit(0); }
else
{ printf("Doesn't work!\n"); exit(1); }
}
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