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Tech Arsenal 1
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INDEX.C
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1993-01-04
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410b
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23 lines
#include <stdio.h>
int index(s, c)
register char *s;
register char c;
{
int idx = 0;
int len = 0;
while (*(s + len++) != '\0');
while ( (*s++ != c) && (idx < len) )
++idx;
return idx == len ? -1 : idx;
/* while ((*s++ != c) && *s )
idx++;
return *s == 0 ? (c == '\0'? idx : -1) : idx;
*/
}