Compiler Error C3033

'var' : variable in 'clause' clause cannot have const-qualified type

Values passed to certain clauses cannot be const variables.

The following sample generates C3033:

// C3033.cpp
// compile with: /openmp /link vcomps.lib
int main() {
   const int val = 1;
   int val2 = 1;

   #pragma omp parallel reduction(+ : val)   // C3033
   ;

   #pragma omp parallel reduction(+ : val2)   // OK
   ;
}