C++ standard libraries extensions, version 3
< cpp | experimental
Version 3 of the C++ Extensions for Library Fundamentals, defines the following new components for the C++ standard library, in addition to those defined in version 1 and version 2.
std::experimental::make_array and components merged into C++17/20 are excluded from LFTS v3.
Scope guard
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Defined in header
<experimental/scope> |
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| wraps a function object and invokes it on exiting the scope (class template) |
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| wraps a function object and invokes it on exiting the scope through an exception (class template) |
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| wraps a function object and invokes it on exiting the scope normally (class template) |
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| universal RAII resource handle wrapper (class template) |
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Feature test macros
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Defined in header
<experimental/scope> |
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__cpp_lib_experimental_scope
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a value of at least 201902 indicates that the scope guard are supported (macro constant) |