From 168b7a317cce20048b319c7e835fc8588a44d5c8 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sat, 17 Nov 2018 10:57:02 +0100 Subject: Add memscan and memcasescan MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- memscan.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 memscan.c (limited to 'memscan.c') diff --git a/memscan.c b/memscan.c new file mode 100644 index 0000000..3fb2a2c --- /dev/null +++ b/memscan.c @@ -0,0 +1,34 @@ +/* See LICENSE file for copyright and license details. */ +#include "libsimple.h" +#ifndef TEST + + +void * +libsimple_memscan(const void *s_, int c_, size_t n) +{ + char *s = *(char **)(void *)&s_, c = (char)c_; + size_t i = 0; + for (; i < n && s[i] != c; i++); + return &s[i]; +} + + +#else +#include "test.h" + +int +main(void) +{ + assert(!strcmpnul(libsimple_memscan("abcABCabcABC", 'a', sizeof("abcABCabcABC") - 1), "abcABCabcABC")); + assert(!strcmpnul(libsimple_memscan("abcABCabcABC", 'c', sizeof("abcABCabcABC") - 1), "cABCabcABC")); + assert(!strcmpnul(libsimple_memscan("abcABCabcABC", 'A', sizeof("abcABCabcABC") - 1), "ABCabcABC")); + assert(!strcmpnul(libsimple_memscan("abcABCabcABC", 'C', sizeof("abcABCabcABC") - 1), "CabcABC")); + assert(!strcmpnul(libsimple_memscan("ABCabcABCabc", 'a', sizeof("ABCabcABCabc") - 1), "abcABCabc")); + assert(!strcmpnul(libsimple_memscan("ABCabcABCabc", 'c', sizeof("ABCabcABCabc") - 1), "cABCabc")); + assert(!strcmpnul(libsimple_memscan("ABCabcABCabc", 'A', sizeof("ABCabcABCabc") - 1), "ABCabcABCabc")); + assert(!strcmpnul(libsimple_memscan("ABCabcABCabc", 'C', sizeof("ABCabcABCabc") - 1), "CabcABCabc")); + assert(!strcmpnul(libsimple_memscan("abcABCabcABC", 'x', sizeof("abcABCabcABC") - 1), "")); + return 0; +} + +#endif -- cgit v1.2.3-70-g09d2