boost::urls::grammar::lut_chars::lut_chars boost::urls::grammar::lut_chars::lut_chars Constructor Synopsis Declared in <include/boost/url/grammar/lut_chars.hpp> constexpr lut_chars(char ch) noexcept; Description This function constructs a character set which has as a single member, the character `ch`. constexpr lut_chars asterisk( '*' ); Constant. Throws nothing. Parameters Name Description ch A character. Created with MrDocs