Compiler Error C3163
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Compiler Error C3163

 

'construct': attributes inconsistent with previous declaration

The attribute(s) that are applied to a definition conflict with the attribute(s) that are applied to a declaration.

One way to resolve C3163 is to eliminate attributes on the forward declaration. Any attributes on a forward declaration should be less than the attributes on the definition or, at most, equal to them.

A possible cause of the C3163 error involves the Microsoft source code annotation language (SAL). The SAL macros do not expand unless you compile your project by using the /analyze flag. A program that compiles cleanly without /analyze might throw C3163 if you attempt to recompile it with the /analyze option. For more information about SAL, see SAL Annotations.

Example

The following sample generates C3163.

// C3163.cpp
// compile with: /clr /c
using namespace System;

[CLSCompliant(true)] void f();
[CLSCompliant(false)] void f() {}   // C3163
// try the following line instead
// [CLSCompliant(true)] void f() {}
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