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r #12967 make none_t constructor constexpr

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Matt
2017-04-13 09:13:26 -04:00
parent cb7641dc34
commit cd4e44f3dc
1 changed files with 1 additions and 1 deletions
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include/boost/none_t.hpp
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@ -29,7 +29,7 @@ class none_t {};
struct none_t
{
struct init_tag{};
explicit none_t(init_tag){} // to disable default constructor
explicit constexpr none_t(init_tag){} // to disable default constructor
};
#endif // old implementation workarounds