Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All
Expand Minimize
Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

Compiler Error C3036

Error Message

'operator' : invalid operator token in OpenMP 'reduction' clause

A reduction clause was not specified correctly.

The following sample generates C3036:

// C3036.cpp
// compile with: /openmp
static float a[1000], b[1000], c[1000];
void test1(int first, int last) {
   static float dp = 0.0f;
   #pragma omp for nowait reduction(.:dp)   // C3036
   // try the following line instead
   // #pragma omp for nowait reduction(+: dp)
   for (int i = first ; i <= last ; ++i)
      dp += a[i] * b[i];

Community Additions

© 2015 Microsoft