How can I get the size of a ASCII file?

[alex]

HI,all:
I use ofstream of stl to manange a file, but how can I get size of
the file?

// open file
std:fstream * log = new std:fstream( "test.log" );
// get size
???

 

[Stu]

HI,all:
I use ofstream of stl to manange a file, but how can I get size of
the file?

// open file
std:fstream * log = new std:fstream( "test.log" );
// get size
???

Simple, you just opened it for output and truncated it, so the file size is
zero...


Stu

 

[alex]

I think I make a mistake.
// Fix...
std:fstream * log = new std:fstream( "test.log",ios::app|ios:ut
);

 

[hacker++]

I think I make a mistake.
// Fix...
std:fstream * log = new std:fstream( "test.log",ios::app|ios:ut
);

Hint: It's possible to randomly select your position in the file and
know your current positon at any time.

 

[Alex Vinokur]

HI,all:
I use ofstream of stl to manange a file, but how can I get size of
the file?

// open file
std:fstream * log = new std:fstream( "test.log" );
// get size
???

See samples at
http://groups.google.com/group/sources/msg/c65655bd45ad797c

Alex Vinokur
email: alex DOT vinokur AT gmail DOT com
http://mathforum.org/library/view/10978.html
http://sourceforge.net/users/alexvn

 

[shanemjtownsend]

#include <iostream>
#include <fstream>
using namespace std;

ofstream file("f:\\test.log",ios::app|ios:ut );
file << "Hello World"; // push out some crap
file.seekp(0,ios::end); // seek end of file
ios:os_type pos = file.tellp(); // get current position
cout << pos;
file.close();