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Implement memmove()

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This commit is contained in:
avdgrinten 2015-12-06 22:09:49 +01:00
parent 36210c1784
commit 62720625ae
1 changed files with 10 additions and 2 deletions
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12
libc/generic/ansi/src/string.cpp
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@ -11,8 +11,16 @@ void *memcpy(void *__restrict dest, const void *__restrict src, size_t size) {
return dest;
}
void *memmove(void *dest, const void *src, size_t size) {
__ensure(!"Not implemented");
__builtin_unreachable();
char *dest_bytes = (char *)dest;
char *src_bytes = (char *)src;
if(dest_bytes < src_bytes) {
for(size_t i = 0; i < size; i++)
dest_bytes[i] = src_bytes[i];
}else{
for(size_t i = 0; i < size; i++)
dest_bytes[size - i - 1] = src_bytes[size - i - 1];
}
return dest;
}
char *strcpy(char *__restrict dest, const char *src) {
__ensure(!"Not implemented");