编译器错误 C3046

OpenMP“#pragma omp sections”区域中缺少结构化块

sections 指令具有一个空代码块。

下面的示例生成 C3046：

// C3046.cpp
// compile with: /openmp /c
#include "omp.h"

int main() {
   int n2 = 2, n3 = 3;

   #pragma omp parallel
   {
      ++n2;

      #pragma omp sections
      {
/*
         ++n2;

         #pragma omp section
         {
            ++n3;
         }
*/
       }   // C3046 uncomment code to resolve this C3046
   }
}