gc_n64_usb-v3/tools/strcasestr.c

50 lines
1.3 KiB
C

/* gc_n64_usb : Gamecube or N64 controller to USB adapter firmware
Copyright (C) 2007-2015 Raphael Assenat <raph@raphnet.net>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#ifdef TEST_IMPLEMENTATION
#include <stdio.h>
#define strcasestr my_strcasestr
char *strcasestr(const char *haystack, const char *needle);
int main(void)
{
const char *a = "sdfsdj kdkf23 34fjsdf lsdf ";
if (my_strcasestr(a, "11")) {
printf("Test 1 failed\n");
}
if (!my_strcasestr(a, "23")) {
printf("Test 2 failed\n");
}
}
#endif
char *strcasestr(const char *haystack, const char *needle)
{
while (*haystack) {
if (0==strncasecmp(haystack, needle, strlen(needle))) {
return (char*)haystack;
}
haystack++;
}
return NULL;
}