newlib-cygwin/newlib/libc/string/strchrnul.c

50 lines
957 B
C

/*
FUNCTION
<<strchrnul>>---search for character in string
INDEX
strchrnul
ANSI_SYNOPSIS
#include <string.h>
char * strchrnul(const char *<[string]>, int <[c]>);
TRAD_SYNOPSIS
#include <string.h>
char * strchrnul(<[string]>, <[c]>);
const char *<[string]>;
int <[c]>;
DESCRIPTION
This function finds the first occurence of <[c]> (converted to
a char) in the string pointed to by <[string]> (including the
terminating null character).
RETURNS
Returns a pointer to the located character, or a pointer
to the concluding null byte if <[c]> does not occur in <[string]>.
PORTABILITY
<<strchrnul>> is a GNU extension.
<<strchrnul>> requires no supporting OS subroutines. It uses
strchr() and strlen() from elsewhere in this library.
QUICKREF
strchrnul
*/
#include <string.h>
char *
_DEFUN (strchrnul, (s1, i),
_CONST char *s1 _AND
int i)
{
char *s = strchr(s1, i);
if (*s != NULL)
return s;
return (char *)s1 + strlen(s1);
}