28 lines
569 B
C
28 lines
569 B
C
#include <string.h>
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#define ALIGNED(p) (!((long)p & (sizeof(long) - 1)))
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#define QUADBLOCKSIZE (sizeof(long) << 2)
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#define BLOCKSIZE (sizeof(long))
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static void *memcpy_r(void *dest, const void *src, size_t sz)
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{
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unsigned char *d = dest;
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const unsigned char *s = src;
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for (size_t i = 0; i < sz; i++) {
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size_t b = sz - i - 1;
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d[b] = s[b];
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}
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return dest;
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}
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void *memmove(void *dest, const void *src, size_t n)
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{
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if (dest < src) {
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return memcpy(dest, src, n);
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} else {
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return memcpy_r(dest, src, n);
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}
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}
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