mes/scaffold/tests/98-fopen.c

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/* -*-comment-start: "//";comment-end:""-*-
* Mes --- Maxwell Equations of Software
* Copyright © 2018 Jeremiah Orians <jeremiah@pdp10.guru>
*
* This file is part of Mes.
*
* Mes 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 3 of the License, or (at
* your option) any later version.
*
* Mes 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 Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libmes.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
FILE* test = fopen("tmp", "a+");
FILE* hold = fopen("tmp", "r");
int a;
int b;
int i = 1000;
do
{
a = fgetc(test);
b = fgetc(hold);
fprintf(stdout, "%c == %c\n", a, b);
if(i < 1000)
{
fflush(test);
fputc('a', test);
}
if(b == EOF) exit(EXIT_SUCCESS);
i = i + 1;
}while (a == b);
fprintf(stderr, "OOOPS you were not supposed to get here\n");
exit(EXIT_FAILURE);
}