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      1 /* test-sorted.c
      2  *
      3  * This test ensures that the ExifTagTable[] array is stored in sorted
      4  * order. If that were not so, then it a binary search of the array would
      5  * not give correct results.
      6  *
      7  * Copyright 2009 Dan Fandrich <dan (at) coneharvesters.com>
      8  *
      9  * This library is free software; you can redistribute it and/or
     10  * modify it under the terms of the GNU Lesser General Public
     11  * License as published by the Free Software Foundation; either
     12  * version 2 of the License, or (at your option) any later version.
     13  *
     14  * This library is distributed in the hope that it will be useful,
     15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     17  * Lesser General Public License for more details.
     18  *
     19  * You should have received a copy of the GNU Lesser General Public
     20  * License along with this library; if not, write to the
     21  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     22  * Boston, MA  02110-1301  USA
     23  */
     24 
     25 #include <libexif/exif-tag.h>
     26 #include <stdio.h>
     27 
     28 int
     29 main (void)
     30 {
     31 	int rc = 0;
     32 	unsigned int i, num;
     33 	ExifTag last = 0, current;
     34 	num = exif_tag_table_count() - 1; /* last entry is a NULL terminator */
     35 	for (i=0; i < num; ++i) {
     36 		current = exif_tag_table_get_tag(i);
     37 		if (current < last) {
     38 			printf("Tag 0x%04x in ExifTagTable[] is out of order\n",
     39 				current);
     40 			rc = 1;
     41 		}
     42 		if (exif_tag_table_get_name(i) == NULL) {
     43 			printf("Tag 0x%04x has a NULL name\n", current);
     44 			rc = 1;
     45 		}
     46 		last = current;
     47 	}
     48 
     49 	return rc;
     50 }
     51