Re: [boost] How to get the size of an C-array?

14 Oct 2009


      I'm going to take a guess. Of course, this is all contingent on whether T is a class that contains a destructor, otherwise all bets are off.
-Sid Sacek

struct XYZ {  int i; };

struct T 
{
	XYZ xyz;
	~T() {}
};

void foo( void )
{
	T * tp = new T[ 100 ];

	size_t array_size = reinterpret_cast< size_t * >( tp )[ -1 ];
}