Defined in header <format> | ||
|---|---|---|
template< class Visitor, class Context > /* see below */ visit_format_arg( Visitor&& vis, std::basic_format_arg<Context> arg ); | (since C++20) |
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.
| vis | - | a Callable that accepts every possible alternative from arg |
| arg | - | a std::basic_format_arg to be visited |
The value returned by the selected invocation of the visitor.
|
(C++20)(C++20) | creates a type-erased object referencing all formatting arguments, convertible to format_args (function template) |
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