Maximum Size of char Array

[Praetoriansys]

When I use:

char FILE_SIZE[1384446]

I get an error

Whwn I use:

char FILE_SIZE[1000000]

I don't get an error but I can not access my entire file. Is there a way around this? Can I use a different variable type that stores the same as a char?


Thanks

 

[Salem]

Well normally, you would use dynamic memory allocation for such large amounts of memory, say

char *FILE_SIZE = new char[1000000];
if ( FILE_SIZE != NULL ) {
  // do stuff
}

--

 

[LazyMe]

The maximum size of your array depends on the amount of bytes that is available in the largest continuous block of memory available to your process.

BUt:
Wouldn't you be better off accessing your file in blocks, if it's that large?


Greetings,
Rick

 

[xwb]

You could map your file into shared memory: then you don't need to allocate anything.

 

[PerFnurt]

LazyMe: Do you consider allocating a couple of megs (on the heap) being all that much today?

/Per

_{www.perfnurt.se}

 

[lionelhill]

When my PC hard disk makes noises like a washing machine while it takes 5 minuts to find the space and processor time to open a 3K .txt file in notepad, I wish the authors of the 146 different processes and bits and pieces currently making demands on the system HAD considered a couple of megs on the heap as being worthy of notice.
(sorry, just a disgruntled technical user, wishing he could do more technical using and less waiting...)

 

[PerFnurt]

Point taken.

/Per

_{www.perfnurt.se}