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Diffstat (limited to 'docs/UsingLibcxx.rst')
| -rw-r--r-- | docs/UsingLibcxx.rst | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/docs/UsingLibcxx.rst b/docs/UsingLibcxx.rst index de87c9c159de..183664655aa3 100644 --- a/docs/UsingLibcxx.rst +++ b/docs/UsingLibcxx.rst @@ -146,6 +146,11 @@ thread safety annotations. build of libc++ which does not export any symbols, which can be useful when building statically for inclusion into another library. +**_LIBCPP_DISABLE_EXTERN_TEMPLATE**: + This macro is used to disable extern template declarations in the libc++ + headers. The intended use case is for clients who wish to use the libc++ + headers without taking a dependency on the libc++ library itself. + **_LIBCPP_ENABLE_TUPLE_IMPLICIT_REDUCED_ARITY_EXTENSION**: This macro is used to re-enable an extension in `std::tuple` which allowed it to be implicitly constructed from fewer initializers than contained @@ -173,3 +178,22 @@ thread safety annotations. return Tup{"hello world", 42}; // explicit constructor called. OK. } +**_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS**: + This macro disables the additional diagnostics generated by libc++ using the + `diagnose_if` attribute. These additional diagnostics include checks for: + + * Giving `set`, `map`, `multiset`, `multimap` a comparator which is not + const callable. + +C++17 Specific Configuration Macros +----------------------------------- +**_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES**: + This macro is used to re-enable all the features removed in C++17. The effect + is equivalent to manually defining each macro listed below. + +**_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS**: + This macro is used to re-enable the `set_unexpected`, `get_unexpected`, and + `unexpected` functions, which were removed in C++17. + +**_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR**: + This macro is used to re-enable `std::auto_ptr` in C++17. |