added o.map()

This commit is contained in:
Andrzej Krzemienski
2018-06-23 18:27:14 +02:00
parent 5182f7f30f
commit e47a017009
50 changed files with 343 additions and 91 deletions

View File

@ -14,6 +14,7 @@
[heading Boost Release 1.68]
* Added member function `has_value()` for compatibility with `std::optional` ([@https://github.com/boostorg/optional/issues/52 issue #52]).
* Added member function `map()` for transforming `optional<T>` into `optional<U>` using a function of type `U(T)`.
[heading Boost Release 1.67]