From e8a7e1c358caec60751460d337f634ff6957ff9d Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Mon, 19 Nov 2018 21:39:11 +0100 Subject: Add a bunch of function and macros MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- strchr_inv.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 strchr_inv.c (limited to 'strchr_inv.c') diff --git a/strchr_inv.c b/strchr_inv.c new file mode 100644 index 0000000..d9fecf6 --- /dev/null +++ b/strchr_inv.c @@ -0,0 +1,29 @@ +/* See LICENSE file for copyright and license details. */ +#include "libsimple.h" +#ifndef TEST + + +char * +libsimple_strchr_inv(const char *s_, int c_) /* TODO man */ +{ + char *s = *(char **)(void *)&s_, c = (char)c_; + for (; *s && *s == c; s++); + return *s ? s : NULL; +} + + +#else +#include "test.h" + +int +main(void) +{ + assert(!strcmpnul(libsimple_strchr_inv("xxoxx", 'x'), "oxx")); + assert(!strcmpnul(libsimple_strchr_inv("xxXxx", 'x'), "Xxx")); + assert(!strcmpnul(libsimple_strchr_inv("XXoxx", 'x'), "XXoxx")); + assert(!strcmpnul(libsimple_strchr_inv("zzzzz", 'z'), NULL)); + assert(!strcmpnul(libsimple_strchr_inv("", '\0'), NULL)); + return 0; +} + +#endif -- cgit v1.2.3-70-g09d2