strchr, index - locate first occurrence of a character in a
strchr(const char *s, int c);
index(const char *s, int c);
The strchr() function locates the first occurrence of the
character c in
the string s. The terminating NUL character is considered
part of the
string. If c is ` ', strchr() locates the terminating ` '.
The index() function is an old synonym for strchr().
The strchr() function returns a pointer to the located character or NULL
if the character does not appear in the string.
After the following call to strchr(), p will point to the
char *s = "foobar";
p = strchr(s, 'o');
memchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3),
The strchr() function conforms to ANSI X3.159-1989 (``ANSI
The index() function is deprecated and shouldn't be used in
OpenBSD 3.6 June 29, 1991
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