13 lines
234 B
C
13 lines
234 B
C
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bcopy(old, new, n)
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register char *old, *new;
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register int n;
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{
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/* Copy a block of data. */
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if (old <= new && old + (n-1) >= new) {
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old += n; new += n;
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while (n-- > 0) *--new = *--old;
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}
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else while (n-- > 0) *new++ = *old++;
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}
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