Defined in header <string.h>
char *strrchr( const char *str, int ch );

Finds the last occurrence of ch (after conversion to char as if by (char)ch) in the null-terminated byte string pointed to by str (each character interpreted as unsigned char). The terminating null character is considered to be a part of the string and can be found if searching for '\0'.

The behavior is undefined if str is not a pointer to a null-terminated byte string.


str - pointer to the null-terminated byte string to be analyzed
ch - character to search for

Return value

Pointer to the found character in str, or null pointer if no such character is found.


#include <string.h>
#include <stdio.h>
int main(void)
    char szSomeFileName[] = "foo/bar/foobar.txt";
    char *pLastSlash = strrchr(szSomeFileName, '/');
    char *pszBaseName = pLastSlash ? pLastSlash + 1 : szSomeFileName;
    printf("Base Name: %s", pszBaseName);


Base Name: foobar.txt


  • C11 standard (ISO/IEC 9899:2011):
    • The strrchr function (p: 368-369)
  • C99 standard (ISO/IEC 9899:1999):
    • The strrchr function (p: 331)
  • C89/C90 standard (ISO/IEC 9899:1990):
    • The strrchr function

See also

finds the first occurrence of a character
finds the first location of any character in one string, in another string
C++ documentation for strrchr

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