21 lines
443 B
C
21 lines
443 B
C
/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Header$ */
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#include <string.h>
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int
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strcmp(register const char *s1, register const char *s2)
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{
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while (*s1 == *s2++) {
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if (*s1++ == '\0') {
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return 0;
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}
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}
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if (*s1 == '\0') return -1;
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if (*--s2 == '\0') return 1;
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return (unsigned char) *s1 - (unsigned char) *s2;
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}
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