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| author | Mattias Andrée <maandree@operamail.com> | 2015-09-01 06:03:04 +0200 |
|---|---|---|
| committer | Mattias Andrée <maandree@operamail.com> | 2015-09-01 06:03:04 +0200 |
| commit | e2d52adc78d14ba3d2c6a6017798c704a2ffb4c5 (patch) | |
| tree | 58e548d3badc94baa6eda95c783336e01e277d8c /src/string/strchr.c | |
| parent | wcswcs is deprecated (diff) | |
| download | slibc-e2d52adc78d14ba3d2c6a6017798c704a2ffb4c5.tar.gz slibc-e2d52adc78d14ba3d2c6a6017798c704a2ffb4c5.tar.bz2 slibc-e2d52adc78d14ba3d2c6a6017798c704a2ffb4c5.tar.xz | |
add strstr functions
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to '')
| -rw-r--r-- | src/string/strchr.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/string/strchr.c b/src/string/strchr.c index 6a25f78..21345d4 100644 --- a/src/string/strchr.c +++ b/src/string/strchr.c @@ -93,10 +93,11 @@ void* memrchr(const void* segment, int c, size_t size) */ char* strchr(const char* string, int c) { - while (; *string; string++) + for (;;) if (*string == c) return string; - return NULL; + else if (!*string++) + return NULL; } /* TODO Ensure that `s = strchr(s, 0)` is faster than `s = s + strlen(s)`. */ @@ -117,10 +118,11 @@ char* strchr(const char* string, int c) */ char* strchrnul(const char* string, int c) { - while (; *string; string++) + for (;; string++) if (*string == c) return string; - return string; + else if (!*string) + return string; } @@ -141,9 +143,10 @@ char* strchrnul(const char* string, int c) char* strrchr(const char* string, int c) { char* r = NULL; - while (; *string; string++) + for (;;) if (*string == c) r = string; - return r; + else if (!*string++) + return r; } |