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For some reason fstream is faster than fopen. on a 8192 byte buffer it's ~4.8 times faster.
ifstream : Stream class to read from files. fstream : Stream class to both read and write from/to files.
Call open() method to open a file “tpoint. txt” to perform read operation using object newfile. If file is open then Declare a string “tp”. Read all data of file object newfile using getline() method and put it into the string tp.
Since this is tagged as C++, I will say ifstream. If it was tagged as C, i'd go with fopen :P
I would prefer ifstream because it is a bit more modular than fopen. Suppose you want the code that reads from the stream to also read from a string stream, or from any other istream. You could write it like this:
void file_reader()
{
string line;
ifstream myfile ("example.txt");
if (myfile.is_open())
{
while (myfile.good())
{
stream_reader(myfile);
}
myfile.close();
}
else
{
cout << "Unable to open file";
}
}
void stream_reader(istream& stream)
{
getline (stream,line);
cout << line << endl;
}
Now you can test stream_reader without using a real file, or use it to read from other input types. This is much more difficult with fopen.
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