string functions

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#include <stdio.h>
#include <string.h> //string functions library
int main()
{
    char s1[]="harish"; //string1
    char s2[]="shiva"; //string2
    char s3[10];
    //puts(strcat(s1,s2)); //concatenation
    printf("length of s1:%d\n",strlen(s2)); //give length of string
    printf("the reversed string of s1: ");
    puts(strrev(s1)); //reverse the string

    //s3=strcat(s1,s2); //you canot do like this
    strcpy(s3,strcat(s1,s2)); //copy value in another variable
    printf("s3 copied from s1 and s2:");
    puts(s3);
    return 0;
}

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