From aa38ada2d408ae7945c9434aed1da36c001dc3b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?M=C3=A5ns=20Rullg=C3=A5rd?= <mans@mansr.com>
Date: Sat, 23 Jun 2007 00:47:28 +0000
Subject: [PATCH] simplify stristart()
Originally committed as revision 9393 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavformat/cutils.c | 20 ++++++--------------
1 file changed, 6 insertions(+), 14 deletions(-)
diff --git a/libavformat/cutils.c b/libavformat/cutils.c
index 8580106717e..eeeef51464a 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;
}
/**
--
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