c++ - read binary file into the address of vector element -

i have binary file contains doubles of size of 8 bytes. want read doubles vector<double>, see below

  ifstream infile("x.dat", ios::binary);   vector<double>data(filesize/8, 0.0);   for(int i=0; i< (filesize/8); ++i)   {     infile.read( (char *) (&data[i]), sizeof(double) );   } 

i know work if data c array, not sure if work vector, since vector contains more stuff c array(vector has methods), address &data[i] mean address of data member of ith element?

yes, each vector element double object, , &data[i] points object.

in fact, double objects in contiguous array, can read them @ once:

infile.read((char*)data.data(), filesize); 

of course, noted below, requires file have been written in format compatible program's binary representation of double values, otherwise values garbage.