throw operator
| throw operator | Throws an exception |
throw-expr ::= throw [assignment-expr] |
The throw operator throws assignment-expr as an exception. The throw expression has type void. With no operand, throw rethrows the current pending exception. If no exception is pending, terminate( ) is called.
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
expression, try, Chapter 3, <exception>, <stdexcept>
