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#include <u.h>
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#include <libc.h>
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Rune*
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runestrncat(Rune *s1, Rune *s2, long n)
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{
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	Rune *os1;
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	os1 = s1;
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	s1 = runestrchr(s1, 0);
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	while(*s1++ = *s2++)
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		if(--n < 0) {
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			s1[-1] = 0;
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			break;
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		}
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	return os1;
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}