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Return true if the path is absolute.
bool is_path_absolute() const;
This function returns true if the path begins with a forward slash ('/').
assert( url_view( "/path/to/file.txt" ).is_path_absolute() );
Constant.
Throws nothing.
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>