Compling the header file

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I've a header file
ClientServer.h

C++

// ClientServer.h
#using <mscorlib.dll>
#using "BalanceInquiry.netmodule"
#pragma once
using namespace System;
// This code wraps the C# class using Managed C++
public __gc class BalanceInquiryC
{
public:
    BalanceInquiry __gc *t;
    BalanceInquiryC(){
t=new BalanceInquiry();
    }
};

When I compiled above header file, I got this error:

error C2143: syntax error : missing ';' before 'gc pointer'
error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
error C3160: 'int __gc *' : a data member of a managed class cannot have this type
error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

If anyone knows, please help me.

Posted 11-Jan-11 16:37pm

Saw Thanda Oo

Updated 12-Jan-11 20:21pm

Emilio Garavaglia

v3

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Steve Maier 11-Jan-11 22:39pm

Are you compiling with 2005, 2008, 2010?

N a v a n e e t h 11-Jan-11 23:25pm

also you don't say compile a header file, header files are included when you compile the relevant source file. If you are using VS2005 or later, I suggest to use the C++/CLI rather than old Managed C++

T2102 11-Jan-11 23:41pm

If you're writing new code, I might not use C++/CLI in VS2010 is there is no intellisense anymore.

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-01-16T11:00:00

Solution 1

The member BalanceInquiry is regular member of the class, not a constructor. So, where is the type of this member?

Assuming everything before this fragment is correct, it could be:

C++

public:
    BalanceInquiry BalanceInquiry __gc *t;

But, then a public field is bad style; instead it should be a private field exposed by some public property accessor with const... and so on...

Anyway, your immediate bug is spotted.

Posted 16-Jan-11 11:00am

Sergey Alexandrovich Kryukov

Comments

Espen Harlinn 16-Jan-11 17:24pm

5+ What really tickles me is the comment: "// This code wraps the C# class using Managed C++" - makes me suspect that the whole class is redundant, it may actually by superfluous, or even unneeded :)

Sergey Alexandrovich Kryukov 16-Jan-11 17:40pm

Right can you be -- Clouded this code is. :-)

Espen Harlinn 16-Jan-11 17:27pm

BTW: I see you have passed the 10 KP watermark - Gratulations are in order!! (I was sort of expecting to hear from you - have I missed something?)

Sergey Alexandrovich Kryukov 16-Jan-11 17:39pm

Oh, I see... Thank you. I really don't understand why is there such a jump in the score; it should have happened recently -- have I missed something?

Member 9503317 · Answer 2 · 2012-10-10T23:19:00

My problem, which was not helped by any of the above comments, was that my c# project i had the class inside a namespace, which presumably changes the way the class would be referenced in C++

My solution was to remove the namespace declaration from my C# project, compile it, and then the compile error was fixed in C++ project