[sr-dev] git:master: core: added q_memrchr(...)

Module: sip-router Branch: master Commit: c8421620772184d28fd5b08d09b1e64cf0a8866a URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=c842162… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Sun Aug 19 12:52:51 2012 +0200 core: added q_memrchr(...) - reverse search for char in a buffer --- ut.h | 17 +++++++++++++++-- 1 files changed, 15 insertions(+), 2 deletions(-) diff --git a/ut.h b/ut.h index 5e9e277..8f04736 100644 --- a/ut.h +++ b/ut.h @@ -432,7 +432,7 @@ static inline char* ushort2str(unsigned short u) -/* faster memchr version */ +/* fast memchr version */ static inline char* q_memchr(char* p, int c, unsigned int size) { char* end; @@ -443,7 +443,20 @@ static inline char* q_memchr(char* p, int c, unsigned int size) } return 0; } - + + +/* fast reverse char search */ + +static inline char* q_memrchr(char* p, int c, unsigned int size) +{ + char* end; + + end=p+size-1; + for(;end>=p;end--) { + if (*end==(unsigned char)c) return end; + } + return 0; +} /* returns -1 on error, 1! on success (consistent with int2reverse_hex) */ inline static int reverse_hex2int( char *c, int len, unsigned int* res)