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Implement minimalistic strcasestr (#5411)

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* Implement minimalistic strcasestr

* fixup! Implement minimalistic strcasestr

* Add _GNU_SOURCE

Enable gcc extensions

* fixup! fixup! Implement minimalistic strcasestr
This commit is contained in:
Petr Ledvina 2018-03-14 14:17:23 +01:00 • committed by Michael Keller
parent 31b3959221
commit eee15e7ca4
2 changed files with 13 additions and 0 deletions
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1
Makefile
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@ -206,6 +206,7 @@ CFLAGS += $(ARCH_FLAGS) \
-fdata-sections \ -fdata-sections \
-pedantic \ -pedantic \
$(DEVICE_FLAGS) \ $(DEVICE_FLAGS) \
-D_GNU_SOURCE \
-DUSE_STDPERIPH_DRIVER \ -DUSE_STDPERIPH_DRIVER \
-D$(TARGET) \ -D$(TARGET) \
$(TARGET_FLAGS) \ $(TARGET_FLAGS) \

12
src/main/common/string_light.c
View file

@ -78,3 +78,15 @@ int strncasecmp(const char * s1, const char * s2, size_t n)
return d; return d;
} }
char *strcasestr(const char *haystack, const char *needle)
{
int nLen = strlen(needle);
do {
if (!strncasecmp(haystack, needle, nLen)) {
return (char *)haystack;
}
haystack++;
} while (*haystack);
return NULL;
}