Article: Q138752
Product(s): Microsoft C Compiler
Version(s): 2.x4.0,4.1,4.2
Operating System(s):
Keyword(s): kbCompiler kbCPPonly kbVC kbVC500fix
Last Modified: 30-JUL-2001
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The information in this article applies to:
- Microsoft C/C++ Compiler (CL.EXE), used with:
- *EDITOR Please do not choose this product*Microsoft Visual C++ 32-bit Edition* use 241, 265, 225, versions 2.x4.0, 4.1, 4.2
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SYMPTOMS
========
Using a class or function template may incorrectly generate a C4114 warning. The
sample code in this article demonstrates a case where this occurs.
CAUSE
=====
The compiler incorrectly expands the type of the function parameter to const T
as it expands a template with type const T when the definition of a function or
member function template has a parameter that takes a const T.
The Help file gives the following information for C4114:
- Same type qualifier used more than once.
- A type qualifier (const, volatile, signed, or unsigned) was used more than
once in the same type declaration or definition. The second occurrence of the
qualifier was ignored. This is a warning when Microsoft extensions are
enabled (/Ze) and an error when extensions are disabled (/Za).
- The following is an example of this warning:
volatile volatile int i; // warning
RESOLUTION
==========
This warning can be safely ignored. To disable all occurrences of this warning,
use the #pragma warning preprocessor directive. The Help file demonstrates how
to use this pragma.
STATUS
======
Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This bug was corrected in Visual C++ version 5.0.
MORE INFORMATION
================
Sample Code to Reproduce Problem
--------------------------------
// test.cpp
// Compile options needed - none
template <class T>
struct f
{
void goo( const T & r){ T t=r;};
};
void main()
{
f<const int> h;
// the following line of code causes
// goo( const const int ) to be expanded
h.goo( 2 );
}
Additional query words: kbVC400bug 2.00 2.10 2.20 9.00 9.10 10.00 10.10 10.20
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Keywords : kbCompiler kbCPPonly kbVC kbVC500fix
Technology : kbVCsearch kbAudDeveloper kbCVCComp
Version : :2.x4.0,4.1,4.2
Issue type : kbbug
Solution Type : kbfix
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