# include <stdio.h>

//
//  Program 10.3, Stephen Kochan, Programming in C.
//
int main ( void );
void concat ( char result[], const char str1[], const char str2[] );

int main ( void )
{
  const char s1[] = { "Test " };
  const char s2[] = { "works." };
  char s3[20];

  concat ( s3, s1, s2 );

  printf ( "%s\n", s3 );

  return 0;
}

void concat ( char result[], const char str1[], const char str2[] )
{
  int i;
  int j;

  for ( i = 0; str1[i] != '\0'; i++ )
  {
    result[i] = str1[i];
  }

  for ( j = 0; str2[j] != '\0'; j++ )
  {
    result[i+j] = str2[j];
  }

  result[i+j] = '\0';

  return;
}