Return true if the path is absolute

Synopsis

Declared in header <boost/url/url_view_base.hpp>

bool
is_path_absolute() const noexcept;

Description

This function returns true if the path begins with a forward slash ('/').

Example

assert( url_view( "/path/to/file.txt" ).is_path_absolute() );

Complexity

Constant.

Exception Safety

Throws nothing.

BNF

path          = path-abempty    ; begins with "/" or is empty
              / path-absolute   ; begins with "/" but not "//"
              / path-noscheme   ; begins with a non-colon segment
              / path-rootless   ; begins with a segment
              / path-empty      ; zero characters

path-abempty  = *( "/" segment )
path-absolute = "/" [ segment-nz *( "/" segment ) ]
path-noscheme = segment-nz-nc *( "/" segment )
path-rootless = segment-nz *( "/" segment )
path-empty    = 0<pchar>

Specification

See Also

encoded_path , encoded_segments . path , segments .