boost::urls::authority_view::port :: Boost Libraries Documentation

# boost::urls::authority_view::port

Return the port

## Synopsis

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

    core::string_view
    port() const noexcept;

## Description

If present, this function returns a string representing the port (which may be empty). Otherwise it returns an empty string.

## Example

    assert( url_view( "http://localhost.com:8080" ).port() == "8080" );

## Complexity

Constant.

## Exception Safety

Throws nothing.

## BNF

    port        = *DIGIT

## Specification

- 3.2.3. Port (rfc3986)

## Return Value

The port as a string

## See Also

`encoded_host_and_port`, `has_port`, `port_number`.

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