Why this is an endless loop?

[abdul]

Simple:

I want to get the size of a file but the following code loops forever and freezes my application:



FILE *file;
int filesize;

while(!feof(file))
{

filesize++;
}




What is wrong with this code and why does it freeze?

[Zaei]

Because you arent doing anything to the file. You are basically doing this:

for(INT fileSize = 0; ; ++fileSize);


There is no condition to end the loop, because you arent seeking the file.

Z.

[abdul]

So how can I get the file size using C functions - not API

[kedaman]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vccore98/html/_crt__filelength.2c_._filelengthi64.asp

[Zaei]

Very likely, there is a function that will retrieve a files attributes. Look around in the MSDN.

Z.

[Zaei]

Grrrr... =).

Z.

[kedaman]

heheh :p

[abdul]

How come MSDN has the resource for general C\C++ programming language

[HarryW]

It doesn't have the resource, it's just a resource available. It just happens to be a very useful resource though, especially if you're using Windows.

You'll need to actually open a file before you can get its attributes, currently you're just declaring a pointer to a file. The standard C way to do that is using fopen().

[parksie]

You can also use _stat to get the file's information. Search for stat.c and that will give an example :)

[abdul]

Originally posted by HarryW


You'll need to actually open a file before you can get its attributes, currently you're just declaring a pointer to a file. The standard C way to do that is using fopen().

Sorry, I just wrote the code in post. I had already opened the file using "fopen" command;)

[MPrestonf12]

try something like GetFileAttributes{API though}