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rsync

    1: /*
    2:  * A pre-compilation helper program to aid in the creation of rounding.h.
    3:  *
    4:  * Copyright (C) 2007-2009 Wayne Davison
    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 3 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 along
   17:  * with this program; if not, visit the http://fsf.org website.
   18:  */
   19: 
   20: #include "rsync.h"
   21: 
   22: #define ARRAY_LEN (EXTRA_ROUNDING+1)
   23: #define SIZEOF(x) ((long int)sizeof (x))
   24: 
   25: struct test {
   26:     union file_extras extras[ARRAY_LEN];
   27:     struct file_struct file;
   28: };
   29: 
   30: #define ACTUAL_SIZE	SIZEOF(struct test)
   31: #define EXPECTED_SIZE	(SIZEOF(union file_extras) * ARRAY_LEN + SIZEOF(struct file_struct))
   32: 
   33:  int main(UNUSED(int argc), UNUSED(char *argv[]))
   34: {
   35:     static int test_array[1 - 2 * (ACTUAL_SIZE != EXPECTED_SIZE)];
   36:     test_array[0] = 0;
   37:     return 0;
   38: }