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Compiler Error C3389

Error Message

__declspec(keyword) cannot be used with /clr:pure or /clr:safe

A __declspec modifier used implies a per process state. /clr:pure implies a per appdomain state. So, declaring a variable with the keyword __declspec modifier and compiling with /clr:pure is not allowed.

The following sample generates C3389:

// C3389.cpp
// compile with: /clr:pure /c
__declspec(dllexport) int g2 = 0;   // C3389

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