Category : C Source Code
Archive   : ECSTR.ZIP
Filename : STRCHR.C

Output of file : STRCHR.C contained in archive : ECSTR.ZIP
/* File : strchr.c
Author : Richard A. O'Keefe.
Updated: 20 April 1984
Defines: strchr(), index()

strchr(s, c) returns a pointer to the first place in s where c
occurs, or NullS if c does not occur in s. This function is called
index in V7 and 4.?bsd systems; while not ideal the name is clearer
than strchr, so index remains in strings.h as a macro. NB: strchr
looks for single characters, not for sets or strings. To find the
NUL character which closes s, use strchr(s, '\0') or strend(s). The
parameter 'c' is declared 'int' so it will go in a register; if your
C compiler is happy with register _char_ change it to that.

#include "strings.h"

char *strchr(s, c)
register _char_ *s;
register int c;
for (;;) {
if (*s == c) return s;
if (!*s++) return NullS;

  3 Responses to “Category : C Source Code
Archive   : ECSTR.ZIP
Filename : STRCHR.C

  1. Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: