operator<<(std::basic_string_view)

`<string_view>`
`template <class CharT, class Traits> std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, std::basic_string_view <CharT, Traits> v);`		(C++17)

a) v.size() os.width() [v.begin(), v.end())

b) (os.flags() & ios_base::adjustfield) == ios_base::left os.fill() os.width()-v.size()

c) os.fill() os.width()-v.size()

os.rdbuf()->sputn(seq, std::max(os.width(), str.size())) (v + ) os

std::setw () os.width(0)

os	-
v	-

os

() [edit]