jyapayne/swig
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

back to strncmp, is not clear if memcmp is faster

Browse source 
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@6272 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
Marcelo Matus 2004-09-27 08:41:51 +00:00
commit f903ec5ac9
1 changed files with 11 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

21
Source/DOH/string.c
View file

@ -113,19 +113,20 @@ String_cmp(DOH *so1, DOH *so2)
{
String * s1 = (String *) ObjData(so1);
String * s2 = (String *) ObjData(so2);
register char *c1;
register char *c2;
register int len = s1->len;
if (len != s2->len) return (len < s2->len ) ? -1 : 1;
c1 = s1->str;
c2 = s2->str;
register char *c1 = s1->str;
register char *c2 = s2->str;
#if 1
/* this is better, but it could be not present in all the
systems ? */
return memcmp(c1, c2, len);
/* this is better, but strncmp could be not present in all the systems? */
if (len != s2->len) {
return (len < s2->len) ? -1 : 1;
} else {
return strncmp(c1, c2, len);
}
#else
/* faster loop with nonzero predicates */
for (; len ; --len,++c1,++c2) {
register char *ce = c1 + len;
if (len != s2->len) return (len < s2->len ) ? -1 : 1;
for (; c1 != ce ; ++c1, ++c2) {
if (*c1 != *c2) return ((*c1 < *c2) ? -1 : 1);
}
return 0;