29 lines
570 B
C
29 lines
570 B
C
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#include <stddef.h>
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void *memset(void *ptr, int value, size_t sz)
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{
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value = (unsigned char)value;
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unsigned int realval =
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value |
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(value << 8) |
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(value << 16) |
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(value << 24);
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unsigned char *buf = ptr;
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size_t i = 0;
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for (i = 0; i < sz; i += sizeof(unsigned int)) {
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unsigned int *t = (unsigned int *)&buf[i];
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*t = realval;
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}
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if (sz % sizeof(unsigned int)) {
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i -= sizeof(unsigned int);
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while (i < sz) {
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buf[i++] = value;
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}
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}
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return ptr;
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}
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