Link error LNK2019 on Window store Application

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I am working on C++ Window store application where I need a dll.

#pragma once

using namespace Windows::Foundation;

namespace MyText
{
    public ref class Class1 sealed
    {
    public:
        Class1();
	int Add(int x, int y);
    };
}

If I remove Add function then there is NO error. I am unable to understand why?

Posted 18-Dec-13 20:06pm

AghaKhan

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[no name] 19-Dec-13 2:13am

Where is Add defined? Have you read the msdn documentation for lnk2019?

AghaKhan 19-Dec-13 2:13am

It is linker error. I am calling this class to my C++ Window Store Application

AghaKhan 19-Dec-13 2:16am

Got it. Thanks for help. I didn't add in CPP file. :-(

2 solutions

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KarstenK · Answer 1 · 2013-12-20T04:22:00

Solution 1

if you only write it in the header it is the declaration. If you implement it in the cpp file not only your linker will be happy ;-)

Posted 20-Dec-13 4:22am

KarstenK

Comments

CPallini 20-Dec-13 11:22am

5.

CPallini · Answer 2 · 2013-12-20T05:24:00

Solution 2

Change from

Quote:
int Add(int x, int y);

to

C++

int Add(int x, int y){return (x+y);}

And the compiler will bless you.

Posted 20-Dec-13 5:24am

CPallini