_MALLOC_3D

#define _MALLOC_3D	(		x,
			d1,
			d2,
			d3,
			type
	)

Value:

x = (type***)malloc((d1)*sizeof(type**));\
                                     for(i=0;i<(d1);i++){\
                                       x[i] = (type**)malloc((d2)*sizeof(type*));\
                                       for(j=0;j<(d2);j++){\
                                         x[i][j] = (type*)malloc((d3)*sizeof(type));\
                                       }\
                                     }