n3668-exchange.hpp File Reference

assign new value and return old More...

Namespaces
	cxxomfort
	Namespace of the cxxomfort library.
	cxxomfort::cxxostd
	Backports made available by cxxomfort.

Functions
template<typename T , typename U >
T	exchange (T &obj, CXXO_RV_REF(U) nval)
	Replaces a variable's value, returns the old value. More...

Detailed Description

assign new value and return old

See also

N3608, N3668