Function does not return expected value - c++

Question

I am not getting back the correct value from function "checkPos" to variable "thesi1. Using CodeBlocks in windows. Any suggestions.
int checkPos(int thesi)
{
switch(thesi)
{
case 6:
thesi = 4;
break;
case 3:
thesi = 8;
break;
case 7:
thesi = 3;
break;
case 9:
thesi = 16;
break;
case 14:
thesi = 10;
break;
return thesi;
}
}
int main(){
thesi1 = checkPos(newPos);
cout << "your position is " << thesi1 << endl;

Answer 1

You need to move the return statement so that it is right after the closing } of the switch statement. As written, your function has undefined behavior since there is no return statement after the switch statement. You should turn up the warning level of your compiler to detect such errors.
int checkPos(int thesi)
{
switch(thesi)
{
case 6:
thesi = 4;
break;
case 3:
thesi = 8;
break;
case 7:
thesi = 3;
break;
case 9:
thesi = 16;
break;
case 14:
thesi = 10;
break;
}
return thesi;
}

Answer 2

There are few things you missed as well as default case if not in the list values
#include<iostream>
using namespace std;
int checkPos(int thesi)
{
switch (thesi)
{
case 6:
thesi = 4;
break;
case 3:
thesi = 8;
break;
case 7:
thesi = 3;
break;
case 9:
thesi = 16;
break;
case 14:
thesi = 10;
break;
default:
cout << thesi<<" Not in the list"<<endl;
return -1;
}
return thesi;
}
int main() {
int newPos;
int thesi1 = checkPos(0);
cout << "your position is " << thesi1 << endl;
}
Output
0 Not in the list
your position is -1