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/* ****************************************************************************
* assert/assert.c -- Make an assertion failed pop-up.
*
* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
*
* This file is part of the 'casiowin/core' module in libcarrot, an
* experimental modular libc project.
*
* This file is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* This file 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 Lesser General Lesser Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this file. If not, see <http://www.gnu.org/licenses/>.
* ************************************************************************* */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
extern void __assert_PopUpWin _OF((int __n)) __THROW;
extern void __assert_Print _OF((const unsigned char *__str)) __THROW;
extern void __assert_locate _OF((int __x, int __y)) __THROW;
extern void __assert_putdisp _OF((void)) __THROW;
/**
* __assert_fail:
* Make an assertion failed pop-up.
*
* @arg expr the expression that failed.
* @arg file the name/path to the source file.
* @arg line the line number.
* @arg func the function name.
*/
void __assert_fail(const char *expr, const char *file,
unsigned int line, const char *func)
{
char f[22]; size_t n, fn;
(void)func;
/* prepare the top line */
sprintf(f, "%d", line);
n = strlen(f); fn = strlen(file);
if (fn <= 21 - 1 - n) sprintf(f, "%s:%d", file, line);
else {
size_t newfn = 21 - 3 - 1 - n;
file = &file[fn - newfn];
fn = newfn;
sprintf(f, "...%s:%d", file, line);
}
/* make the pop-up window */
__assert_PopUpWin(4);
__assert_locate(3, 2); __assert_Print((unsigned char*)f);
__assert_locate(3, 3); __assert_Print((unsigned char*)"Assertion failed:");
__assert_locate(4, 4); __assert_Print((unsigned char*)expr);
__assert_locate(5, 3); __assert_Print((unsigned char*)"Exiting now.");
__assert_putdisp();
/* exit */
abort();
}
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