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Compiler Warning C4430

Error Message

missing type specifier - int assumed. Note: C++ does not support default-int

This error can be generated as a result of compiler conformance work that was done for Visual C++ 2005: all declarations must now explicitly specify the type; int is no longer assumed. See Breaking Changes in the Visual C++ 2005 Compiler for more information.

C4430 is always issued as an error. You can turn off this warning with the #pragma warning or /wd; see warning or /w, /Wn, /WX, /Wall, /wln, /wdn, /wen, /won (Warning Level) for more information.

Example

The following sample generates C4430.

// C4430.cpp
// compile with: /c
struct CMyClass {
   CUndeclared m_myClass;  // C4430
   int m_myClass;  // OK
};

typedef struct {
   POINT();   // C4430
   // try the following line instead
   // int POINT();
   unsigned x;
   unsigned y;
} POINT;
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