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Add missing define

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Simon Brand
2018-09-03 13:49:56 +01:00
parent 068d3db664
commit 4d5453bc56
1 changed files with 4 additions and 0 deletions
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tl/optional.hpp
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@@ -139,6 +139,10 @@ template <class B, class... Bs>
struct conjunction<B, Bs...> struct conjunction<B, Bs...>
: std::conditional<bool(B::value), conjunction<Bs...>, B>::type {}; : std::conditional<bool(B::value), conjunction<Bs...>, B>::type {};
#if defined(_LIBCPP_VERSION) && __cplusplus == 201103L
#define TL_OPTIONAL_LIBCXX_MEM_FN_WORKAROUND
#endif
// In C++11 mode, there's an issue in libc++'s std::mem_fn // In C++11 mode, there's an issue in libc++'s std::mem_fn
// which results in a hard-error when using it in a noexcept expression // which results in a hard-error when using it in a noexcept expression
// in some cases. This is a check to workaround the common failing case. // in some cases. This is a check to workaround the common failing case.