The strcat() function joins two strings.

It returns the address of the destination string.

char* strcat(char *dst,char* src)

Example:

 
int main()

{

  char s1[10], s2[10];

  strcpy( s1, "first " );

  strcpy( s2, "second" );

  strcat( s1, s2 );

  printf( s1 );

  return 0;

}

Output:

  first second