boost::urls::format_arg :: Boost Libraries Documentation

# boost::urls::format_arg

A temporary reference to a formatting argument

## Synopsis

Declared in `<boost/url/format.hpp>`

    using format_arg = /* implementation-defined */;

## Description

This class represents a temporary reference to a formatting argument used by the `format` function.

A `format` argument should always be created by passing the argument to be formatted directly to the `format` function.

Any type that can be formatted into a URL with the `format` function is convertible to this type.

This includes basic types, types convertible to `core::string_view`, and `named_arg`.

## See Also

`format`, `format_to`, `arg`.

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