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Diffstat (limited to '')
-rw-r--r-- | memcasemem.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/memcasemem.c b/memcasemem.c new file mode 100644 index 0000000..244042b --- /dev/null +++ b/memcasemem.c @@ -0,0 +1,58 @@ +/* See LICENSE file for copyright and license details. */ +#include "libsimple.h" +#ifndef TEST + + +void * +libsimple_memcasemem(const void *hay_, size_t hayn, const void *sub_, size_t subn) +{ + char *hay = (void *)hay_, *end; + const char *sub = sub_; + + if (!subn) + return hay; + if (hayn < subn) + return NULL; + if (subn == 1) + return libsimple_memcasechr(hay, *sub, hayn); + + for (end = &hay[hayn - subn + 1]; hay != end; hay++) + if (tolower(*hay) == tolower(*sub) && !libsimple_memcasecmp(hay, sub, subn)) + return hay; + + return NULL; +} + + +#else +#include "test.h" + +int +main(void) +{ + assert(!strcmpnul(libsimple_memcasemem("test", 4, "test", 4), "test")); + assert(!strcmpnul(libsimple_memcasemem("", 0, "", 0), "")); + assert(!strcmpnul(libsimple_memcasemem("test", 4, "", 0), "test")); + assert(!libsimple_memcasemem("", 0, "test", 4)); + assert(!libsimple_memcasemem("t", 1, "test", 4)); + assert(!strcmpnul(libsimple_memcasemem("test", 4, "t", 1), "test")); + assert(!strcmpnul(libsimple_memcasemem("test", 4, "e", 1), "est")); + assert(!strcmpnul(libsimple_memcasemem("test", 4, "s", 1), "st")); + assert(!libsimple_memcasemem("test", 4, "x", 1)); + assert(!strcmpnul(libsimple_memcasemem("test", 4, "te", 2), "test")); + assert(!strcmpnul(libsimple_memcasemem("test", 4, "es", 2), "est")); + assert(!strcmpnul(libsimple_memcasemem("test", 4, "st", 2), "st")); + assert(!strcmpnul(libsimple_memcasemem("test", 5, "t", 2), "t")); + assert(!libsimple_memcasemem("test", 4, "xx", 2)); + assert(!strcmpnul(libsimple_memcasemem("abc", 3, "c", 1), "c")); + assert(!strcmpnul(libsimple_memcasemem("abc", 3, "bc", 2), "bc")); + assert(!strcmpnul(libsimple_memcasemem("abc", 3, "abc", 3), "abc")); + assert(!libsimple_memcasemem("abc", 3, "abc", 4)); + assert(!strcmpnul(libsimple_memcasemem("abcabc", 6, "bc", 2), "bcabc")); + assert(!strcmpnul(libsimple_memcasemem("abcabc", 6, "BC", 2), "bcabc")); + assert(!strcmpnul(libsimple_memcasemem("ABCABC", 6, "bc", 2), "BCABC")); + assert(!strcmpnul(libsimple_memcasemem("ABCABC", 6, "BC", 2), "BCABC")); + return 0; +} + +#endif |