Problem with V C++

I have this program, if I run it under Dev-C++ it runs berfect, but if I try to run it under V c++ it gives me an error message.

this is the code

Code:

---

//project 5 Order status

#include<iostream.h>
#include<math.h>


float spools_orderd;
float spools_in_stock;
bool special_c = false;

void getData()
{

        char y;
        cout<<" Please enter the Number of spools orderd: " ;
        cin>> spools_orderd;

        cout<<" Please enter the Number of Spools in Stuck: " ;
        cin>> spools_in_stock;

        cout<<" IS there any special charge? (Y = yes): ";
        cin>>y;
        if ((y= 'Y')|| (y='y')){
                special_c = true;
        }
}

void display()
{
        float ready_spools_in_stock;
        float spools_in_back_order;
        float portion_ready;
        float total_s_and_h_charge;
        float total_charge;
        float special_charges =10;

        //geting the special charge if there is any
        if (special_c == true) {
                cout<<" Please enter the special shipping and handling charges (normaly it is $10) :" ;
              cin>> special_charges;
        }
       
        //calculating the spools in the order and sub it from the stock
        if ( spools_in_stock >= spools_orderd) {
                ready_spools_in_stock= spools_orderd;
                spools_in_stock = spools_in_stock - spools_orderd;
                spools_in_back_order = 0;
        }else {
                ready_spools_in_stock = spools_in_stock;
                spools_in_back_order = spools_orderd - spools_in_stock;
                spools_in_stock = 0;
        }

        //calculating the portion ready to ship.
        portion_ready = ready_spools_in_stock * 100;

        //calculating the shipping & handling charges
        total_s_and_h_charge = special_charges * ready_spools_in_stock;

        //calculating the total order ready to ship
        total_charge = total_s_and_h_charge + portion_ready;


        //displaying the resluts.
        cout<< " The Number of spools ready to ship in stock are: ";
        cout<< ready_spools_in_stock<< "spools"<<endl;

        cout<<" The Number of spools on back-order is:";
        cout<< spools_in_back_order<< endl;

        cout<<" Subtotal of the portion ready to ship : $ ";
        cout<< portion_ready<<endl;

        cout<< " The total shipping and handling charges on the portion ready to ship $";
        cout<< total_s_and_h_charge<<endl;

        cout<<" The total  of the order ready to ship is : $ ";
        cout<< total_charge<<endl;
       
}

int main()
{

        getData();
        display();

  return 0;
}

---

This is the error message:
*******
--------------------Configuration: p4 - Win32 Debug--------------------
Compiling...
4p4.cpp
Linking...
LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved external symbol _WinMain@16
Debug/p4.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

p4.exe - 2 error(s), 0 warning(s)
**********************

Thank you for your help.

Create yourself a new project only this time choose 'console application'. Copy your code in and you should be fine. That message means the compiler is trying to create you a Win32 application, you picked the wrong setting when you made the project.

I hope that this is the problem,
let me try it.

that was the problem.

That is right,
thank you for your help

In addition, have a close look at this line:

if ((y= 'Y')|| (y='y')){

I don't think it works the way you intended it.