How to solve this error for this part :=>warning: control reaches end of non-void function [-Wreturn-type]

Question

bool Rover::move(Map &mars)
{
char Heading[] = {'^', '>', 'v', '<'};
switch (heading)
{
case 0:

if (mapper.isHill(x, y+1))
{
cout << "cant move" << endl;
return false;
}
if(mapper.isTrap(x, y+1)){
mapper.setObject(x, y, ' ');
y += 1;
mapper.setObject(x, y, 164);
system("cls");
mapper.display();
break;

}
if(!mapper.isInsideMap(x, y+1)){
cout << "hitting a wall"<< endl;
return false;
}
else{
mapper.setObject(x, y, ' ');
y += 1;
mapper.setObject(x, y, Heading[heading]);
collectgold(mars);
return true;
}

case 1:

if (mapper.isHill(x+1, y))
{
cout << "cant move" << endl;
return false;
}
if(mapper.isTrap(x+1, y)){
mapper.setObject(x, y, ' ');
x += 1;
mapper.setObject(x, y, 164);
system("cls");
mapper.display();
break;

}
if(!mapper.isInsideMap(x+1, y)){
cout << "hitting a wall"<< endl;
return false;
}
else{
mapper.setObject(x, y, ' ');
x += 1;
mapper.setObject(x, y, Heading[heading]);
collectgold(mars);
return true;
}

case 2:

if (mapper.isHill(x, y-1))
{
cout << "cant move" << endl;
return false;
}
if(mapper.isTrap(x, y-1)){
mapper.setObject(x, y, ' ');
y -= 1;
mapper.setObject(x, y, 164);
system("cls");
mapper.display();
break;

}
if(!mapper.isInsideMap(x, y-1)){
cout << "hitting a wall"<< endl;
return false;
}

Answer 1

I can't say for sure because your program has been cut off due to the characer limit. Please save this code in C++ code in the code playground and then link it here.

From what I see, this is the problem:
The warning is there because the compiler detected that there is a possibility that your function ends without returning anything. That possibility is when nome of the `case` conditions are matched. Put a default case in the switch block and return something from the default case and the warning will go away.