not operator
| not operator | Logical negation operator |
unary-expr := ! cast-expr | not cast-expr |
The not operator converts its operand to type bool, inverts its value, and returns a bool result. The not keyword is interchangeable with the ! token.
Example
template<typename C>
typename C::value_type checked_first(const C& c)
{
if (not c.empty( ))
return c[0];
throw std::out_of_range("container is empty");
}
See Also
and, bool, expression, or, Chapter 3, <ciso646>
