NAME

strrchr - string scanning operation

SYNOPSIS

#include <string.h>

char *strrchr(const char *s, int c);


DESCRIPTION

^[CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2017 defers to the ISO C standard.

The strrchr() function shall locate the last occurrence of c (converted to a char) in the string pointed to by s. The terminating NUL character is considered to be part of the string.

RETURN VALUE

Upon successful completion, strrchr() shall return a pointer to the byte or a null pointer if c does not occur in the string.

ERRORS

No errors are defined.

EXAMPLES

Finding the Base Name of a File

The following example uses strrchr() to get a pointer to the base name of a file. The strrchr() function searches backwards through the name of the file to find the last '/' character in name. This pointer (plus one) will point to the base name of the file.

#include <string.h>
...
const char *name;
char *basename;
...
basename = strrchr(name, '/') + 1;
...

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

strchr

XBD <string.h>

CHANGE HISTORY

First released in Issue 1. Derived from Issue 1 of the SVID.