1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/*
* r1bindex.c -- Given a string and a character, return a pointer
* -- to the right of the rightmost occurrence of the
* -- character. If the character doesn't occur, the
* -- pointer will be at the beginning of the string.
*
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
#include <h/mh.h>
char *
r1bindex(char *str, int chr)
{
char *cp;
/* find null at the end of the string */
for (cp = str; *cp; cp++)
continue;
/* backup to the rightmost character */
--cp;
/* now search for the rightmost occurrence of the character */
while (cp >= str && *cp != chr)
--cp;
/* now move one to the right */
return (++cp);
}
|
