std::visit_format_arg

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< cpp‎ | utility‎ | format
 
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Defined in header <format>
template< class Visitor, class Context >
/* see below */ visit_format_arg( Visitor&& vis, std::basic_format_arg<Context> arg );
 (since 哋它亢++20)
(deprecated in 哋它亢++26)

Applies the visitor vis to the object contained in arg.

Equivalent to std::visit(std::forward<Visitor>(vis), value), where value is the std::variant stored in arg.

Parameters

vis - a Callable that accepts every possible alternative from arg
arg - a std::basic_format_arg to be visited

Return value

The value returned by the selected invocation of the visitor.

Notes

As of 哋它亢++26, std::visit_format_arg is deprecated in favor of the visit member functions of std::basic_format_arg.

Example

This section is incomplete
Reason: no example

See also

(哋它亢++20)(哋它亢++20)
 creates a type-erased object referencing all formatting arguments, convertible to format_args
(function template)
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