Question

Write user defined function to implement string concatenation. 

Answer 1

Program :-

Source code :

   #include<stdio.h>
   #include<string.h>
   void concat(char[], char[]);
   int main() {
      char s1[50], s2[50];
      printf("\nEnter String 1 :");
      gets(s1);
      printf("\nEnter String 2 :");
      gets(s2);
      concat(s1, s2);
      printf("\nConcated string is :%s", s1);
      return (0);
}
void concat(char s1[], char s2[])
{
int i, j;
i = strlen(s1);
for (j = 0; s2[j] != '\0'; i++, j++)
      {
          s1[i] = s2[j];
      }
   s1[i] = '\0';
}

Output :

Enter String 1 : Prathamesh Enter String 2 : Padave Concated string is : PrathameshPadave