vim test.cpp
#include <unordered_map>
#include <cstdio>
#include <omp.h>
int main(int argc, char *argv[])
{
std::unordered_map<unsigned,std::string> map{
{200505,"2.5"},{200805,"3.0"},{201107,"3.1"},{201307,"4.0"},{201511,"4.5"}};
printf("We have OpenMP %s.\n", map.at(_OPENMP).c_str());
return 0;
}
g++ -std=c++11 -fopenmp test.cpp
./a.out
标签：std,map,int,查询,版本,test,openmp,include From： https://www.cnblogs.com/lin1216/p/16880221.html