...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Return the number of decoded characters.
size_type size() const;
assert( decode_view( "Program%20Files" ).size() == 13 );
return std::distance( this->begin(), this->end() );
Constant.
Throws nothing.