{
 std::vector<int> vec{1,20,3,499,5};
 for(int i=0;i<vec.size();++i) std::cout <<"vec["<<i<<"]="<< vec[i] << std::endl;

 std::vector<double> x={0.5,3,5,6.9,9};
 for(auto z:x) std::cout<<z<<endl;

 return;
}

=======================================
Processing vector_initialize.C...
vec[0]=1
vec[1]=20
vec[2]=3
vec[3]=499
vec[4]=5
0.5
3
5
6.9
9