std::visit_format_arg
From cppreference.com
| 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) (deprecated in C++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 C++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
| (C++20)(C++20) |
creates a type-erased object referencing all formatting arguments, convertible to format_args (function template) |