c - Using constant memory with struct array in CUDA -

i try pass struct array constant memory, have same problems. first of all, struct is:

#define point_size 1024  struct point {     short x;     short y;      point (short xx, short yy){         x = xx;         y = yy;     }      point (){         x = 0;         y = 0;    } }; 

when use following declaration, compile error: can't generate code non empty constructors or destructors on device

__constant__ point points_once[point_size]; 

the weird side of when use follwing declaration, it's gone. but, not valid me.

__constant__ point *points_once[point_size]; 

how can solve problem. thank help. use latest driver , visual studio 2010 compute_30 , sm_30 configuration.

this question duplicate of this one. please review answer there explanation of why happening.

as work-around, either use defined constants direct assignment (i.e. not in constructor) discussed in other answer, or omit constructor initialization, , use separate host based routine initialize __constant__ region values desire using cudamemcpytosymbol.

since array of pointers not allocate structure storage, constructor not called in second example, , there no issue, not see error message.