Compiler Error C2160

 

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The latest version of this topic can be found at Compiler Error C2160.

cannot occur at the beginning of a macro definition

A macro definition began with a token-pasting operator (##).

The following sample generates C2160:

// C2160.cpp  
// compile with: /c  
#define mac(a,b) #a   // OK  
#define mac(a,b) ##a   // C2160  

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