mirror of
https://github.com/fluencelabs/musl
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22 lines
472 B
C
22 lines
472 B
C
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#include <string.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <limits.h>
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#define SS (sizeof(size_t))
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#define ALIGN (sizeof(size_t)-1)
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#define ONES ((size_t)-1/UCHAR_MAX)
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void *memset(void *dest, int c, size_t n)
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{
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unsigned char *s = dest;
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c = (unsigned char)c;
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for (; ((uintptr_t)s & ALIGN) && n; n--) *s++ = c;
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if (n) {
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size_t *w, k = ONES * c;
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for (w = (void *)s; n>=SS; n-=SS, w++) *w = k;
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for (s = (void *)w; n; n--, s++) *s = c;
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}
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return dest;
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}
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