Hi Philipp,
I'd say that's sloppy coding (in my opinion).
You should really use malloc for huge buffers, not statically allocated variables.
Love,
Jens
On Fri, 06 Apr 2012 13:56:08 +0200, Philipp Savun wrote:
> Hello,
>
> since version 4.6.2 I have the following problem when compiling a c++11
> program with gcc:
>
> When using an array with really many shared_ptr I am running out of
> memory when compiling the code.
> The the following error occurs:
>
> "cc1plus: out of memory allocating 268435456 bytes after a total of
> 40083456 bytes"
>
> on my computer having 4GM RAM.
>
> This problem still exitst with gcc 4.7.
> gcc 4.5.2 doesn't seem to use much memory at all - it also instantly
> compiles that code (and much faster).
>
> Someone who can explain the issue?
>
>
> The code would be something like this:
>
> #include <memory>
> #include <array>
>
> class SomeClass;
> typedef std::shared_ptr<SomeClass> SomeClassPtr;
> typedef std::array<SomeClassPtr, 3000*3000> MyArray;
>
> int main()
> {
> MyArray myArray;
>
> return 0;
> }
>
> This is the coomandline when compiling:
>
> g++ main.cpp -std=c++0x
>
> My system is "Linux Mint 11 Katya".
>
> Thank you
>
> Philipp
>
