From ab8803f7cfdc7c7b258fb3e59fb2d55bacf7522a Mon Sep 17 00:00:00 2001 From: Andreas Baumann Date: Sun, 23 Jul 2017 15:27:43 +0200 Subject: added a strncmp function --- src/libc/string.c | 10 ++++++++++ src/libc/string.h | 1 + 2 files changed, 11 insertions(+) diff --git a/src/libc/string.c b/src/libc/string.c index 2dd351d..a1e8c0c 100644 --- a/src/libc/string.c +++ b/src/libc/string.c @@ -68,6 +68,16 @@ int strcmp( const char *s1, const char *s2 ) return *s1 - *s2; } +int strncmp( const char *s1, const char *s2, size_t n ) +{ + while( n-- > 0 && *s1 && *s2 && *s1 == *s2 ) { + s1++; + s2++; + } + + return *s1 - *s2; +} + size_t strlcpy( char *d, const char *s, size_t n ) { size_t len = 0; diff --git a/src/libc/string.h b/src/libc/string.h index f078d48..09028c1 100644 --- a/src/libc/string.h +++ b/src/libc/string.h @@ -9,6 +9,7 @@ void *memcpy( void *d, const void *s, size_t n ); size_t strlen( const char *s ); int strcmp( const char *s1, const char *s2 ); +int strncmp( const char *s1, const char *s2, size_t n ); size_t strlcpy( char *d, const char *s, size_t n ); size_t strlcat( char *d, const char *s, size_t n ); -- cgit v1.2.3-54-g00ecf