ISO C++ 201z In this implementation the -std=gnu++1z or -std=c++1z flag must be used to enable language and library features. See dialect options. The pre-defined symbol __cplusplus is used to check for the presence of the required flag. This page describes the C++1z and library TS support in mainline GCC SVN, not in any particular release. Paper Title Status Comments N4259 Wording for std::uncaught_exceptions Y N4190 Removing auto_ptr, random_shuffle(), And Old <functional> Stuff N N4284 Contiguous Iterators Y No code changes required N4089 Safe conversions in unique_ptr<T[]> N N4277 TriviallyCopyable reference_wrapper Y N4258 Cleaning-up noexcept in the Library Partial N4279 Improved insertion interface for unique-key maps N N3911 Transformation Trait Alias void_t Y N4169 A proposal to add invoke function template N N4280 Non-member size() and more N N4387 LWG 2228: Missing SFINAE rule in unique_ptr templated assignment N N4387 Improving pair and tuple, revision 3 N N4389 Wording for bool_constant, revision 1 Y N4508 A proposal to add shared_mutex (untimed) (Revision 4) Y N4510 Minimal incomplete type support for standard containers, revision 4 Y Paper Title Status Comments N4076 A generalized callable negator Y Library Fundamentals 2 TS N4273 Uniform Container Erasure Y Library Fundamentals 2 TS N4061 Greatest Common Divisor and Least Common Multiple Y Library Fundamentals 2 TS N4066 Delimited iterators Y Library Fundamentals 2 TS N4282 The World's Dumbest Smart Pointer Y Library Fundamentals 2 TS N4388 Const-Propagating Wrapper N Library Fundamentals 2 TS N4391 make_array, revision 4 N Library Fundamentals 2 TS N4502 Support for the C++ Detection Idiom, V2 N Library Fundamentals 2 TS N4519 Source-Code Information Capture N Library Fundamentals 2 TS N4521 Merge Fundamentals V1 into V2 N Library Fundamentals 2 TS