weird cpp error

when I run this, it doesn't do what it's supposed to. It's an ascii space invaders game(my first game programming project). It's supposed to go left when you press a, and right when you press d.


#include <stdio.h> // for printf
#include <conio.h> // for getch
#include <string.h>
#include <iostream.h>



char espace_vaisseau[76];
char left_right;
int espace = 39;
int count;
int loop;

main ()
{
strcpy(espace_vaisseau, " "); // graphics pour le vaisseau



cout << "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n";

cout << "^W^" << espace_vaisseau ; // afficher vaisseau

for(loop = 0; loop < 4; loop + 0) // infinite loop; while didn't work
{
if((left_right = getch()) == 'a')
{
espace--;
}
else if ((left_right = fetch()) == 'd')
{
espace++;
}
if (espace < 0)
{
espace++;
}
else if (espace > 76)
{
espace--;
}

for (count = 0; count <= espace; count++)
{
espace_vaisseau[count]=' ';
}

printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");

printf("%s^W^", espace_vaisseau); // afficher vaisseau
}

return (0);
}