What C 17 Features are Implemented in C 1z Compilers?

C 17 Features in C 1z Compilers

C 17 is now feature complete, and compilers supporting "C 1z" will implement most of the features added in C 17. Some of the key features that will be available in C 1z compilers include:

Language Features:

• Template argument deduction for class templates
• template
• Non-type template arguments fixes
• templatetypename bob> struct foo {}
• ( Folding ... expressions ) with revisions
• auto x{8}; is an int
• Modernizing using with ... and lists

Lambda:

• Constexpr lambdas
• Capturing *this in lambdas

Attributes:

• [[fallthrough]], [[nodiscard]], [[maybe_unused]] attributes
• [[attributes]] on namespaces and enumerators

Syntax Cleanup:

• Inline variables
• Cleaner multi-return and flow control with structured bindings and if (init; condition) syntax

Data Types:

• std::variant
• std::optional
• std::any
• std::string_view

Invoke Stuff:

• std::invoke
• std::apply
• std::make_from_tuple
• is_invocable, is_invocable_r, and invoke_result

File System TS v1:

• File I/O-related classes and functions

Algorithms:

• New algorithms such as for_each_n, reduce, and transform_reduce

Threading:

• std::shared_mutex

Library Fundamentals TS v1:

• Searching algorithms and techniques
• Polymorphic allocator (std::pmr)
• Container improvements including splicing and non-member std::size

Smart Pointers:

• unique_ptr fixes

Other Changes:

• C 17 library is based on C11 instead of C99
• Special math functions
• std::clamp
• std::void_t

Note: Please consult the compiler documentation for the exact list of C 17 features supported by your specific compiler.

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