View Compilation Error

0_0_16913047_734.c: In function 'main':
0_0_16913047_734.c:37:6: error: too few arguments to function 'strncpy_s'
      strncpy_s(str2[k],str[t],16);
      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/string.h:180:0,
                 from 0_0_16913047_734.c:2:
GCC4.9.2/x86_64-w64-mingw32/include/sec_api/string_s.h:29:27: note: declared here
   _CRTIMP errno_t __cdecl strncpy_s(char *_Dst,size_t _DstSizeInChars,const char *_Src,size_t _MaxCount);
                           ^