https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119323
--- Comment #13 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Robert Dubner from comment #11)
> But I really wonder if it's possible to come up with an example where using
> ++it is actually faster, in some significant way, than using it++.
Putting sleep( 1) in one of them should make a difference.
For example, for a typical Point class:
class Point
{
public:
// Declare prefix and postfix increment operators.
Point& operator++(); // Prefix increment operator.
Point operator++(int); // Postfix increment operator.
};
// Define prefix increment operator.
Point& Point::operator++()
{
_x++;
_y++;
return *this;
}
// Define postfix increment operator.
Point Point::operator++(int)
{
Point temp = *this;
sleep( 1);
++*this;
return temp;
}
In general, for types close to the machine like most STL iterators,
pre & post aren't that different. For complex types, they can be
very different.
> Anyway, I have a local script for running tests. I am considering adding
> cppcheck to the end of it. Like, why not?
Good idea.
The thought crosses my mind that cobol hasn't AFAIK met clang.
Build running. I will report back, probably in a separate bug report.
