strchr

Name

strchr, strrchr
- locate character in string

Library

libc.lib

Synopsis

#include <string.h>

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

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

Return values

The functions strchr and strrchr return a pointer to the located character, or NULL if the character does not appear in the string.

Detailed description

The strchr function locates the first occurrence of c (converted to a char) in the string pointed to by s. The terminating null character is considered part of the string; therefore if c is ‘\0,’ the functions locate the terminating ‘\0.’

The strrchr function is identical to strchr except it locates the last occurrence of c.

Examples

#include <string.h>
#include <stdio.h>
int main()
{
        char one[50];
        char* ret;
        strcpy(one,"abcd");
        ret = strchr("abcd", 'c');
        if(!strncmp(one+2,ret,1)) printf("\ 'c\ ' found in string \"abcd\"\n");
        ret = strchr(one, 'z');
        if(ret == NULL) printf("\ 'z\ ' not found in string \"abcd\"\n");               
        return 0;
}

Output

 ’c’ found in string "abcd"
 ’z’ not found in string "abcd"

Feedback

For additional information or queries on this page send feedback