Compiler Error C3043
Visual Studio 2015
The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.
The latest version of this topic can be found at Compiler Error C3043.
OpenMP 'critical' directive cannot be nested in 'critical' directive with same name
A critical directive cannot be nested in a critical directive that uses the same name.
The following sample generates C3043:
// C3043.cpp
// compile with: /openmp /c
#include "omp.h"
int main() {
int n1 = 1, n2 = 2, n3 = 3;
#pragma omp parallel
{
++n2;
#pragma omp critical(MyTest)
{
++n2;
#pragma omp critical(MyTest) // C3043
// try the following line instead
// #pragma omp critical(MyTest2)
{
++n3;
}
}
}
}
Show: