feedc0de/boost_optional
1
0
Fork 0
forked from boostorg/optional
Code Pull Requests Activity

update docs for comparison with std

Browse Source
This commit is contained in:
Andrzej Krzemienski
2024-09-15 21:12:34 +02:00
parent cb68f6053d
commit f97e43ce13
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
doc/91_comparison_with_std.qbk
View File

@ -16,7 +16,9 @@
[ [[*`boost::optional`]] [[*`std::optional`]] [] ]
[ [`optional<int> o = none;`] [`optional<int> o = nullopt;`] [Different name for no-value tag.] ]
[ [`optional<X> o {in_place_init, a, b};`] [`optional<int> o {in_place, a, b};`] [Different name for in-place initialization tag.] ]
[ [] [`optional<vector<int>> o {in_place, {1, 2, 3}};`] [No in-place initialization with initializer-list in `boost`.] ]
[ [] [`optional<vector<int>> o {in_place, {1, 2, 3}};`
`o.emplace({4, 5, 6});`] [No in-place initialization with initializer-list in `boost`.] ]
[ [`optional<X> o {in_place_init_if, cond, a, b};`] [] [No syntax for conditional in-place initialization in `std`.] ]
[ [`optional<X> o {cond, x};`] [] [No syntax for conditional initialization from `T` in `std`.] ]
[ [`optional<T> o {U{}};`
@ -39,6 +41,7 @@
`optional<T>{} == optional<U>{}`] [No comparisons with `U` or `optional<U>` in `boost`.] ]
[ [`make_optional(cond, v);`] [] [No `make_optional` with condition in `std`.] ]
[ [] [`make_optional<T>(a, b);`] [No `make_optional` with specified `T` in `boost`.] ]
[ [`std::cout << optional<int>{};`] [] [No printing to IOStreams in `std`.]]
]