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static_url_base::has_authority

(Inherited from url_view_base)

Return true if an authority is present.

Synopsis
bool
has_authority() const;
Description

This function returns true if the url contains an authority. The presence of an authority is denoted by a double slash ("//") at the beginning or after the scheme.

Example
assert( [link url.ref.boost__urls__url_view_base.url_view `url_view`]( "http://www.example.com/index.htm" ).[link url.ref.boost__urls__static_url_base.has_authority `has_authority`]() );
Complexity

Constant.

Exception Safety

Throws nothing.

BNF
[link url.ref.boost__urls__static_url_base.authority `authority`]       = [ [link url.ref.boost__urls__static_url_base.userinfo `userinfo`] "@" ] [link url.ref.boost__urls__static_url_base.host `host`] [ ":" [link url.ref.boost__urls__static_url_base.port `port`] ]

URI             = [link url.ref.boost__urls__static_url_base.scheme `scheme`] ":" hier-part [ "?" [link url.ref.boost__urls__static_url_base.query `query`] ] [ "#" [link url.ref.boost__urls__static_url_base.fragment `fragment`] ]

absolute-URI    = [link url.ref.boost__urls__static_url_base.scheme `scheme`] ":" hier-part [ "?" [link url.ref.boost__urls__static_url_base.query `query`] ]

URI-reference   = URI / relative-[link url.ref.boost__urls__grammar__ref `ref`]

relative-[link url.ref.boost__urls__grammar__ref `ref`]    = relative-part [ "?" [link url.ref.boost__urls__static_url_base.query `query`] ] [ "#" [link url.ref.boost__urls__static_url_base.fragment `fragment`] ]

hier-part       = "//" [link url.ref.boost__urls__static_url_base.authority `authority`] [link url.ref.boost__urls__static_url_base.path `path`]-abempty
                ; (more...)

relative-part   = "//" [link url.ref.boost__urls__static_url_base.authority `authority`] [link url.ref.boost__urls__static_url_base.path `path`]-abempty
                ; (more...)
Specification
See Also

authority, encoded_authority.


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