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STRCMP.C
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1984-12-31
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768b
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/* File : strcmp.c
Author : Richard A. O'Keefe.
Updated: 10 April 1984
Defines: strcmp()
strcmp(s, t) returns > 0, = 0, or < 0 when s > t, s = t, or s < t
according to the ordinary lexicographical order. To test for
equality, the macro streql(s,t) is clearer than !strcmp(s,t). Note
that if the string contains characters outside the range 0..127 the
result is machine-dependent; PDP-11s and VAXen use signed bytes,
some other machines use unsigned bytes.
*/
#include "strings.h"
int strcmp(s, t)
register char *s, *t;
{
while (*s == *t++) if (!*s++) return 0;
return s[0]-t[-1];
}