is_absolute Returns true if this references an absolute path. Synopsis bool is_absolute() const noexcept; Declared in file <include/boost/url/segments_encoded_base.hpp> on line 178 Defined in file <src/segments_encoded_base.cpp> on line 65 Description Absolute paths always start with a forward slash ('/'). Example assert( url_view( "/path/to/file.txt" ).encoded_segments().is_absolute() == true ); Complexity Constant. Exception Safety Throws nothing.