Compiler Error C3041

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'var' : variable in 'copyprivate' clause must be private in enclosing context

A variable passed to copyprivate cannot be shared in the enclosing context.

The following sample generates C3041:

// C3041.cpp
// compile with: /openmp /c
#include "omp.h"
double d;
int main() {
   #pragma omp parallel shared(d)
   // try the following line instead
   // #pragma omp parallel private(d)
   {
      // or don't make d copyprivate
      #pragma omp single copyprivate(d)   // C3041
      {
      }
   }
}