features_cpp14.yaml

---
features:
  - desc: "Tweaked wording for [contextual conversions](https://cppreference.com/cpp/language/implicit_cast#Contextual_conversions)"
    paper: N3323
    support:
      - GCC 4.9
      - Clang 3.4
      - MSVC 12.0
      - Xcode
      - R++

  - desc: "[Binary literals](https://cppreference.com/cpp/language/integer_literal)"
    paper: N3472
    support:
      - GCC 4.3 (partial)
      - GCC 4.9
      - Clang 2.9
      - MSVC 14.0
      - Xcode
      - R++
    ftm:
      - name: __cpp_binary_literals
        value: 201304L
    keywords: ["0b"]

  - desc: "`decltype(auto)`, Return type deduction for normal functions"
    paper: N3638
    support:
      - tool: GCC 4.8
        status: partial
        note: "N3386 version"
      - GCC 4.9
      - tool: Clang 3.3
        status: partial
        note: "Only `decltype(auto)` is supported."
      - Clang 3.4
      - MSVC 14.0
      - Xcode
      - R++
    ftm:
      - name: __cpp_decltype_auto
        value: 201304L
      - name: __cpp_return_type_deduction
        value: 201304L

  - desc: "Initialized/Generalized lambda captures (init-capture)"
    paper: N3648
    support:
      - GCC 4.5 (partial)
      - GCC 4.9
      - Clang 3.4
      - MSVC 14.0
      - Xcode
      - R++
    ftm:
      - name: __cpp_init_captures
        value: 201304L

  - desc: "[Generic lambda expressions](https://cppreference.com/cpp/language/lambda#Explanation)"
    paper: N3649
    support:
      - GCC 4.9
      - Clang 3.4
      - MSVC 14.0
      - Xcode
      - R++
    ftm:
      - name: __cpp_generic_lambdas
        value: 201304L

  - desc: "[Variable templates](https://cppreference.com/cpp/language/variable_template)"
    paper: N3651
    summary: "Variables parameterized by type, without a wrapping class or function."
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
      - R++
    ftm:
      - name: __cpp_variable_templates
        value: 201304L

  - desc: "Relaxed `constexpr` restrictions"
    paper: N3652
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.10
      - Xcode
      - R++
    ftm:
      - name: __cpp_constexpr
        value: 201304L

  - desc: "Aggregates with [default member initializers](https://cppreference.com/cpp/language/data_members#Member_initialization)"
    paper: N3653
    support:
      - GCC 5
      - Clang 3.3
      - MSVC 14.10
      - Xcode
      - R++
    ftm:
      - name: __cpp_aggregate_nsdmi
        value: 201304L

  - desc: "Omitting/extending [memory allocations](https://cppreference.com/cpp/language/new#Allocation)"
    paper: N3664
    support: [Clang 3.4, Xcode, R++]

  - desc: "`[[deprecated]]` attribute"
    paper: N3760
    support:
      - GCC 4.9
      - Clang 3.4
      - MSVC 14.0
      - Xcode
      - R++
    ftm:
      - name: __has_cpp_attribute(deprecated)
        value: 201309L

  - desc: "[Sized deallocation](https://cppreference.com/cpp/language/delete)"
    paper: N3778
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
      - R++
    ftm:
      - name: __cpp_sized_deallocation
        value: 201309L

  - desc: "[Single quote](https://cppreference.com/cpp/language/integer_literal#Single_quote) as digit separator"
    paper: N3781
    support:
      - GCC 4.9
      - Clang 3.4
      - MSVC 14.0
      - Xcode
      - R++
    ftm:
      - name: __cpp_digit_separators
        value: 201309L

  - desc: "`constexpr` for `<complex>`"
    paper: N3302
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode

  - desc: "Transparent [operator function objects](https://cppreference.com/cpp/functional#Operator_function_objects)"
    paper: N3421
    lib: true
    support:
      - GCC 4.9
      - Clang 3.4
      - MSVC 12.0
      - Xcode
    ftm:
      - name: __cpp_lib_transparent_operators
        value: 201210L
    keywords: ["std::less<>", "is_transparent"]

  - desc: "`std::result_of` and SFINAE"
    paper: N3462
    lib: true
    support:
      - GCC 5
      - Clang
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_result_of_sfinae
        value: 201210L

  - desc: "`constexpr` for `<chrono>`"
    paper: N3469
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode

  - desc: "`constexpr` for `<array>`"
    paper: N3470
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode

  - desc: "`constexpr` for `<initializer_list>`, `<utility>` and `<tuple>`"
    paper: N3471
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode

  - desc: "Improved `std::integral_constant`"
    paper: N3545
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_integral_constant_callable
        value: 201304L

  - desc: "[User-defined literals](https://cppreference.com/cpp/language/user_literal#Standard_library) for `<chrono>` and `<string>`"
    paper: N3642
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_chrono_udls
        value: 201304L
      - name: __cpp_lib_string_udls
        value: 201304L
    keywords: ["std::literals", "chrono_literals", "string_literals"]

  - desc: "[Null forward iterators](https://cppreference.com/cpp/named_req/ForwardIterator#Singular_iterators)"
    paper: N3644
    lib: true
    support:
      - tool: GCC 5
        status: partial
        note: "In libstdc++ debug mode, comparing value-initialized iterators can abort."
      - tool: GCC 11
        status: partial
        note: "Comparing value-initialized vector iterators works in debug mode, but empty ranges of value-initialized iterators can still fail in algorithms."
      - tool: GCC 13.3
        note: "The debug-mode fixes were backported to GCC 13.3; GCC 12.5 still has the empty-range limitation."
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_null_iterators
        value: 201304L

  - desc: "`std::quoted()`"
    paper: N3654
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_quoted_string_io
        value: 201304L

  - desc: "Alias templates for [transformation traits](https://cppreference.com/cpp/meta#Type_transformations)"
    paper: N3655
    lib: true
    support:
      - GCC 4.9
      - Clang 3.4
      - MSVC 12.0
      - Xcode
    ftm:
      - name: __cpp_lib_transformation_trait_aliases
        value: 201304L
    keywords: ["std::enable_if_t", "std::decay_t"]

  - desc: "`std::make_unique()`"
    paper: N3656
    lib: true
    support:
      - GCC 4.9
      - Clang 3.4
      - MSVC 12.0
      - Xcode
    ftm:
      - name: __cpp_lib_make_unique
        value: 201304L

  - desc: "Heterogeneous associative lookup"
    paper: N3657
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_generic_associative_lookup
        value: 201304L
    keywords: ["is_transparent"]

  - desc: "`std::integer_sequence`"
    paper: N3658
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_integer_sequence
        value: 201304L
    keywords: ["std::index_sequence", "std::make_index_sequence"]

  - desc: "`std::exchange()`"
    paper: N3668
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_exchange_function
        value: 201304L

  - desc: "Fixing `constexpr` member functions without `const`"
    paper: N3669
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode

  - desc: "Addressing tuples by type: `std::get<T>()`"
    paper: N3670
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_tuples_by_type
        value: 201304L

  - desc: "Dual-range `std::equal()`, `std::is_permutation()`, `std::mismatch()`"
    paper: N3671
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_robust_nonmodifying_seq_ops
        value: 201304L

  - desc: "[User-defined literals for `std::complex`](https://cppreference.com/cpp/numeric/complex/operator%22%22i)"
    paper: N3779
    lib: true
    support:
      - GCC 4.9
      - Clang 3.4
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_complex_udls
        value: 201309L

  - desc: "`std::is_null_pointer`"
    paper: LWG2247
    lib: true
    support:
      - GCC 4.9
      - Clang 3.4
      - MSVC 14.0
      - Xcode 15
    ftm:
      - name: __cpp_lib_is_null_pointer
        value: 201309L

  - desc: "`std::is_final`"
    paper: LWG2112
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode 15
    ftm:
      - name: __cpp_lib_is_final
        value: 201402L

  - desc: "`std::make_reverse_iterator()`"
    paper: LWG2285
    lib: true
    support:
      - GCC 5
      - Clang 3.4
      - MSVC 14.0
      - Xcode 15
    ftm:
      - name: __cpp_lib_make_reverse_iterator
        value: 201402L

  - desc: "`std::shared_timed_mutex`"
    paper: [N3659, N3891]
    lib: true
    support:
      - GCC 5
      - Clang 3.5
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_shared_timed_mutex
        value: 201402L
    keywords: ["std::shared_lock"]

  - desc: "`std::tuple_element_t`"
    paper: N3887
    lib: true
    support:
      - GCC 5
      - Clang 3.5
      - MSVC 14.0
      - Xcode
    ftm:
      - name: __cpp_lib_tuple_element_t
        value: 201402L