strrchr Function

C

Function

Reference manual

@see man strrchr, strchr function

The strrchr function is used to locate the last occurrence of a specified character within a null-terminated string. It searches the string from the end toward the beginning and returns a pointer to the last occurrence of the character.

The strchr function does the same thing except it searches for the first occurrence of the specified character.

Syntax

char *strrchr(const char *str, int character);

Parameters

• str: A pointer to the null-terminated string to search within.
• character: The character to search for within the string.

Return value

Returns a pointer to the last occurrence of the specified character in the string, or NULL if the character is not found in the string.

Example

In the following example we use the strrchr function to locate the last occurrence of the character ‘t’ in the string “This is a test string.” and output the return value.

#include <stdio.h>
#include <string.h>

int main(void) {
    const char *str = "This is a test string.";
    char *result = strrchr(str, 't');
    
    if (result != NULL)
        printf("Last 't' found at: %s\n", result);
    else
        printf("Character 't' not found in the string.\n");
    return (0);
}