2 * A pre-compilation helper program to aid in the creation of rounding.h.
4 * Copyright (C) 2007 Wayne Davison
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 3 as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, visit the http://fsf.org website.
22 union file_extras extras1[1];
24 # include "mkrounding.h"
29 union file_extras extras2[2];
31 # include "mkrounding.h"
36 union file_extras extras4[4];
38 # include "mkrounding.h"
42 #define SIZE_TEST(n) (sizeof (struct test ## n) == EXTRA_LEN * n + sizeof (struct file_struct))
44 int main(UNUSED(int argc), UNUSED(char *argv[]))
49 else if (SIZE_TEST(2))
51 else if (SIZE_TEST(4))
54 fprintf(stderr, "Unable to determine required file_extras rounding!\n");
58 fprintf(stderr, "Rounding file_extras in multiples of %d", cnt + 1);
60 fprintf(stderr, "No rounding needed for file_extras");
61 fprintf(stderr, " (EXTRA_LEN=%d, FILE_STRUCT_LEN=%d)\n",
62 (int)EXTRA_LEN, (int)FILE_STRUCT_LEN);
63 printf("#define EXTRA_ROUNDING %d\n", cnt);