21 lines
451 B
C
21 lines
451 B
C
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#include <string.h>
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void * memmove(void * dest, const void * src, size_t size) {
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unsigned char * to = (unsigned char *) dest;
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const unsigned char * from = (const unsigned char *) src;
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/* We check this to make sure we don't overwrite memory */
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if(to < from) {
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for(size_t i = 0; i < size; i++) {
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to[i] = from[i];
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}
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}
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else {
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for(size_t i = size; i != 0; i--) {
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to[i - 1] = from[i - 1];
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}
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}
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return dest;
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}
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