Name

strspn - search a string for a set of characters

Library

 libc.lib

Synopsis
  #include <string.h>
  size_t strspn (const char *s, const char *charset);

Return values

strspn function returns the number of characters in the initial segment of s which consists only of characters from accept

Detailed description

 The strspn function spans the initial part of the null-terminated string s as long as the characters from s occur in the null-terminated string charset. In other words, it computes the string array index in s of the first character of s which is not in charset, else the index of the first null character.

Examples

 
#include <string.h>
#include <stdio.h>
int main()
{
    char one[50];
    int res;
    strcpy(one,"abcba");
    res = strspn(one, "abc");
    printf(" %d times characters found in the string \n",res);
    return 0;
}

Output 

5 times characters found in the string

Return values

 The strspn function returns the number of characters spanned.

See also

 memchr, strchr, strpbrk, strsep, strstr, strtok

Feedback

For additional information or queries on this page send feedback

© 2008 Nokia Corporation. All rights reserved. This documentation can be used in the connection with this Product to help and support the user.

Top