compiler-warning-level-4-c4559.md

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Learn more about: Compiler Warning (level 4) C4559	Compiler Warning (level 4) C4559	08/27/2018	C4559	C4559	ed542f60-454d-45cb-85da-987ede61b1ab

Compiler Warning (level 4) C4559

'function' : redefinition; the function gains __declspec(modifier)

Remarks

A function was redefined or redeclared and the second definition or declaration added a __declspec modifier (modifier). This warning is informational. To fix this warning, delete one of the definitions.

Example

The following sample generates C4559:

// C4559.cpp
// compile with: /W4 /LD
void f();
__declspec(noalias) void f();   // C4559