I have been learning how to add multi files using headers, but VS express 2015 gives me an error of cin and l not declared in the main.cpp
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#include<iostream>
#include"add.h"
#include"subtract.h"
#include"math.h"
/*separate file (add.cpp)
int add(int a, int b) {
return a + b;
}
*/
/*separate file (add.h)
#pragma once
int add(int a, int b);
*/
/*separate file (subtract.cpp)
int subtract(int x, int y)
{
return x - y;
}
*/
/*separate file (subtract.h)
#pragma once
int subtract(int x, int y);
*/
/* separate file (math.cpp)
int math(int l)
{
cin >> l;
return 2 * l;
}
*/
/* separate file (math.h)
#pragma once
int math(int l);
*/
int main()
{
using namespace std;
cout << "8 + 3 = " << add(8, 3) << endl;
cout << "5-3 = " << subtract(5, 3) << endl;
cout << "2 * 2 = " << math(l) << endl;
return 0;
}
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Last edited on
line 40-47: math.cpp does not include <iostream> or have using namespace std.
Therefore at line 44, the compiler does not know what cin is.
@AbstractionAnon Ive added it but still gives me the same errors
error again.. is there something i am not doing right?
Error C2039 'cout': is not a member of 'std' ConsoleApplication3
Okay i got it to work by adding #include<iostream> .. :) much relieved now!! Wooh!