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File I/O in C++

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I'm doing some things with File I/O in C++ right now. My question is, is there a way to read in a line into a variable of type double instead of a string? For example, say the text file that I am reading in appears like this: 12.32 223.21 123.64 Is there any way to read the entire line into a variable of type double instead of a string so that I can compare them?

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#include <iostream>

int main()
{
using namespace std;
ifstream fin(<filename>);
double a, b, c;
fin >> a >> b >> c;

// etc...

return 0;
}

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Quote:
Original post by Mxz
Slight correction to both posts, the correct header is <fstream>.

[smile]


why not use #include <ifstream> if its only for input?

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Quote:
Original post by philipptr
Quote:
Original post by Mxz
Slight correction to both posts, the correct header is <fstream>.

[smile]


why not use #include <ifstream> if its only for input?



Because the header <ifstream> does not exist.

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