Microsoft KB Archive/315946

Knowledge Base

BUG: You receive error message C1001 when you try to convert the managed parameter constructor std::string& to std::string in Viosual Studio .NET

Article ID: 315946

Article Last Modified on 8/24/2005

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APPLIES TO

• Microsoft Visual Studio .NET 2002 Professional Edition
• Microsoft Visual Studio .NET 2002 Enterprise Architect
• Microsoft Visual Studio .NET 2002 Enterprise Developer
• Microsoft Visual Studio .NET 2002 Academic Edition
• Microsoft Visual Studio .NET 2003 Academic Edition
• Microsoft Visual Studio .NET 2003 Enterprise Developer
• Microsoft Visual Studio .NET 2003 Enterprise Architect
• Microsoft Visual Studio .NET 2003 Professional Edition

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This article was previously published under Q315946

SYMPTOMS

In Microsoft Visual Studio .NET, when you try to convert the managed parameter constructor std::string& to std::string, you receive the following error message:

"fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'f:\vs70builds\9288\vc\Compiler\Utc\src\P2\main.c', line 146)"

RESOLUTION

Change the constructor so that it requires its argument to be copy constructed.

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.

MORE INFORMATION

Steps to Reproduce the Behavior

1. Create a Managed Extensions for C++ application named Test. Delete the existing code in Test.cpp, and then paste the following sample code:

   /* test.cpp*/ 
   
   #include "stdafx.h"
   
   #using <mscorlib.dll>
   #include <string> 
   public __gc class Hello { 
   public: 
   Hello(std::string arg) {} 
   };
   
    
   public __gc class There { 
   public: 
    void Something(const std::string &arg) { 
     Hello *hello = new Hello(arg); 
    } 
   }; 
   
   
   void main()
   {
   There *there = new There(); 
   there->Something("world"); 
   }
                       

2. Do one of the following:
   • Use the integrated development environment (IDE) to build the project.
     
     -or-
   • Compile the file in Visual Studio .NET by typing the following at a command prompt: cl /clr /EHsc test.cpp

Keywords: kbbug kbpending kbvs2002sp1sweep KB315946

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