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strrchr, _mbsrchr, wcsrchr

Header File

string.h, mbstring.h

Category

Memory and String Manipulation Routines, Inline Routines, C++ Prototyped Routines

Prototype

char *strrchr(const char *s, int c); /* C only */

const char *strrchr(const char *s, int c); // C++ only

char *strrchr(char *s, int c); // C++ only

wchar_t *wcsrchr(const wchar_t *s, wchar_t c);

unsigned char * _mbsrchr(const unsigned char *s, unsigned int c);

Description

Scans a string for the last occurrence of a given character.

strrchr scans a string in the reverse direction, looking for a specific character. strrchr finds the last occurrence of the character c in the string s. The null-terminator is considered to be part of the string.

Return Value

strrchr returns a pointer to the last occurrence of the character c. If c does not occur in s, strrchr returns null.

Example

Copy Code

    #include <string.h>
    #include <stdio.h>
    int main(void)
    {
       char string[15];
       char *ptr, c = 'r';
       strcpy(string, "This is a string");
       ptr = strrchr(string, c);
       if (ptr)
          printf("The character %c is at position: %d\n", c, ptr-string);
       else
          printf("The character was not found\n");
       return 0;
    }

Portability

| POSIX | Win32 | ANSI C | ANSI C++
strrchr | + | + | + | +
_mbsrchr |  | + |  |
wcsrchr |  | + | + | +

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