egcs / g++ conflicts c++ draft standard (i think)

[Joe Buck]

> 	Could please  someone tell me where can  i find  a list of non
> standard c++ features  supported by g++.  Following are this 2 samples
> discovered  because we have to port  to  WinNT and VC++5 don't compile
> this code. 

You list the two most commonly used conflicts.

> -- Initialization of const data member inside class definition
> //conflicts Stroustrup: C++ Programming Language 3ed - 10.4.6.2
> class foo
> {
> ....
>   const int qtd = 100;
> ....
> };

Note that the standard allows

class foo
{
    static const int qtd = 100;
};

(as does g++) although many compilers don't yet implement it.

(Perhaps it is time for g++ to allow only 'static', or to at least
warn about other uses like this).

> -- Dynamic allocation of array bounds (no const bounds)

That's the other.  The best way to port code like this to a standard
compiler is to change

	int dynarray[size];

into
	vector<int> dynarray(size);

95% of the time, this is all you need to do.