Jiaming Yuan ee287808fb
Lazy initialization of device vector. (#5173)
* Lazy initialization of device vector.

* Fix #5162.

* Disable copy constructor of HostDeviceVector.  Prevents implicit copying.

* Fix CPU build.

* Bring back move assignment operator.
2020-01-07 11:23:05 +08:00
..
2019-08-19 16:51:40 +12:00
2019-12-05 22:15:34 +08:00