FIX: C1001 Error for typedef Within the Class Declaration
Article ID: 122300
Article Last Modified on 10/24/2003
APPLIES TO
- Microsoft Visual C++ 2.0 Professional Edition
- Microsoft Visual C++ 6.0 Service Pack 5
This article was previously published under Q122300
SYMPTOMS
Compiling the code that uses a class declaration with a typedef of itself,
as demonstrated by the sample code in the More Information section,
produces this error:
fatal error C1001: INTERNAL COMPILER ERROR
(compiler file 'msc1.cpp', line 1056)
Please choose the Technical Support command on the Visual C++
Help menu, or open the Technical Support help file for more
information
RESOLUTION
Use a forward declaration for the class, and place the typedef line before
the class declaration:
class A;
typedef A B;
Alternatively, enclose the returned typedef name in parentheses to indicate
that the constructor is used to return the value (see AltRetB in the sample
code).
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed
at the beginning of this article. This problem was corrected in Microsoft
Visual C++, 32-bit Edition, version 4.0.
Additional query words: 2.00 9.00 buglist2.00
Keywords: kbbug kbfix kbcpponly kbcompiler KB122300