#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char* strConcat(char * s,char *t);
int main()
{
  char string1[] = "String1---|";
  char string2[] = "|---String2";
  char * concat = strConcat(string1,string2);
  printf("Concat String is : %s\n",concat);
  return 0;
}
char* strConcat(char * s,char *t)
{
 int length1 = strlen(s);
 int length2 = strlen(t);
 char * concat = (char*)malloc(sizeof(char) * (length1+length2));
 int i=0,j=0;
 for(i = 0;i<length1+length2;i++)
 {
   if(i<length1)
    concat[i] = s[i];
   else
    concat[i] = t[i-length1];
 }

 concat[i] = '\0';
 return concat;
}