Method getBuffer

src/common/classes/array.h:405–410

prepare array to be used as a buffer of capacity items

	// prepare array to be used as a buffer of capacity items
	T* getBuffer(const size_type capacityL, bool preserve = true)
	{
		ensureCapacity(capacityL, preserve);
		count = capacityL;
		return data;
	}

	// prepare array to be used as a buffer of capacity bytes aligned on given alignment
	T* getAlignedBuffer(const size_type capacityL, const size_type alignL)