Compiler Warning (level 1) C4602

#pragma pop_macro : 'macro name' no previous #pragma push_macro for this identifier

If you use pop_macro for a particular macro, you must first have passed that macro name to push_macro. For example, the following sample generates C4602:

// C4602.cpp  
// compile with: /W1  
int main()  
{  
   #pragma pop_macro("x")   // C4602 x is not on the stack  
}