RE: [GD-General] not sure where to post this question... bit C++ implementation specific....

[Crosbie F. <cr...@cy...>]

> From: Jorrit Tyberghein
> How would that help? In C++ you simply cannot do this:
>=20
>     int a =3D 6;
>     int array[a];
>=20
> It is not possible to allocate arrays with variables (const=20
> or not const).

Many apologies for the following hack, but once upon a time it was =
needed.

	#if 0
		#define CLASS_INT(N) _SClassInt##N
		#define CLASS_INT_STRUCT(N) typedef char CLASS_INT(N) [N]

	CLASS_INT_STRUCT(2);
	CLASS_INT_STRUCT(3);
	CLASS_INT_STRUCT(4);
=09
		#undef CLASS_INT_STRUCT

		#define NUMBER(NN) CLASS_INT(NN)
	#else
		#define NUMBER(NN) char [NN]
	#endif

	#define _2 NUMBER(2)
	#define _3 NUMBER(3)
	#define _4 NUMBER(4)
	#define INT_(NUM) (sizeof(NUM))


Maybe it could be used again?


e.g.

	int array[INT_(NUMBER(6))];


But, there MUST be a better answer these days eh?

Templates perhaps?