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Add comment explaining what function does

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Cover strcoll return 0 case too
This commit is contained in:
Andrey A. Chernov 1996-09-17 19:27:06 +00:00
parent 7b8830a51e
commit cb07d7668c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=18331
1 changed files with 11 additions and 3 deletions
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14
lib/libc/locale/collcmp.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
* $Id: collcmp.c,v 1.5 1996/08/14 19:47:02 ache Exp $
*/
#include <ctype.h>
@ -31,10 +31,16 @@
#include <limits.h>
#include <locale.h>
/*
* Compare two characters converting collate information
* into ASCII-compatible range, it allows to handle
* "[a-z]"-type ranges with national characters.
*/
int collate_range_cmp (c1, c2)
int c1, c2;
{
int as1, as2, al1, al2;
int as1, as2, al1, al2, ret;
static char s1[2], s2[2];
c1 &= UCHAR_MAX;
@ -65,5 +71,7 @@ int collate_range_cmp (c1, c2)
s1[0] = c1;
s2[0] = c2;
return strcoll(s1, s2);
if ((ret = strcoll(s1, s2)) != 0)
return (ret);
return (c1 - c2);
}