mp_units::operator<<

Stream insertion operator

Synopsis

Declared in <mp-units/framework/quantity.h>

template<typename CharT, typename Traits, auto R, typename Rep>
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, quantity<R, Rep> const& q)
  requires requires { os << q.numerical_value_ref_in(q.unit); };

Note

This function is a hidden friend of quantity, declared inside an implementation-defined base class: it can be found only through argument-dependent lookup.

Return Value

Reference to the current output stream

Parameters

Name	Description
os	An output stream
q	The object to output