move-semantic

[oktonion]

Some parts of std-11 library need to be implemented using move-semantic. This feature should be added as extension with macro like STDEX_RV_REF etc.

[oktonion]

Created a branch for move-semantic feature.

https://github.com/oktonion/stdex/tree/move_feature

All custom classes and macro are almost done, now it is time to implement rv-references in stdex classes.