Standard C++ Library Reference ISO/IEC (VERSION3)

unary_negate

template<class Fn1>

class unary_negate

: public unary_function<

typename Fn1::argument_type,

bool> {

public:

explicit unary_negate(const Fn1& Func);

bool operator()(

const typename Fn1::argument_type& left) const;

};

The template class stores a copy of func, which must be a unary function object. It defines its member function

operator() as returning !func(left).

See also the Table of Contents and the Index.