Re: [Dev-C++] declare a two-dimension array

[Per W. <pw...@ia...>]

Don't try to statically allocate huge objects on the stack!

1024*512*4 is 2MB.

Depending on architecture, there are often a limited size the stack may
be.

Depending on architecture and compiler, there is also sometimes a limit to
how much the stack may grow for each function call - it depends on how the
compiler generats code to touch guard pages to let the OS allocate more
memory pages for the stack.

If you want a large array, either allocate it dynamically or create the
array as a global object.

/Per W

On Wed, 13 Dec 2006, Hi, There wrote:

> Hi, There,
>
> I want to declare a two-dimension array by
> "float coeftemp1 [1024][512];". It doesn't work.
>
> But, if I change it to "float coeftemp1 [1024][500];".
> It works. Could any one know the reason?
>
> Thank you,
>
>
>
>
> //**************************
> #include <cstdlib>
> #include <iostream>
>
> using namespace std;
>
> int main(int argc, char *argv[])
> {
>     float coeftemp1 [1024][512];
>     system("PAUSE");
>     return EXIT_SUCCESS;
> }
> //**************************
>
>
>
>
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