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authorMåns Rullgård <mans@mansr.com>2007-06-23 00:47:28 +0000
committerMåns Rullgård <mans@mansr.com>2007-06-23 00:47:28 +0000
commitaa38ada2d408ae7945c9434aed1da36c001dc3b7 (patch)
treefc93744e4dfc027b49d8bfc24a25859653fd16eb /libavformat/cutils.c
parent315a2858b6779c2a79bd49f8d1b6c4def412f749 (diff)
simplify stristart()
Originally committed as revision 9393 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/cutils.c')
-rw-r--r--libavformat/cutils.c20
1 files changed, 6 insertions, 14 deletions
diff --git a/libavformat/cutils.c b/libavformat/cutils.c
index 8580106717..eeeef51464 100644
--- a/libavformat/cutils.c
+++ b/libavformat/cutils.c
@@ -44,23 +44,15 @@ int strstart(const char *str, const char *pfx, const char **ptr)
* prefix.
*
* @param str input string
- * @param val prefix to test
+ * @param pfx prefix to test
* @param ptr updated after the prefix in str in there is a match
* @return TRUE if there is a match */
-int stristart(const char *str, const char *val, const char **ptr)
+int stristart(const char *str, const char *pfx, const char **ptr)
{
- const char *p, *q;
- p = str;
- q = val;
- while (*q != '\0') {
- if (toupper(*(const unsigned char *)p) != toupper(*(const unsigned char *)q))
- return 0;
- p++;
- q++;
- }
- if (ptr)
- *ptr = p;
- return 1;
+ while (*pfx && toupper((unsigned)*pfx++) == toupper((unsigned)*str++));
+ if (!*pfx && ptr)
+ *ptr = str;
+ return !*pfx;
}
/**