https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67617
Bug ID: 67617
Summary: Non-standard const requirements imposed on associate
container comparison objects
Product: gcc
Version: 4.8.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: mdempsky at google dot com
Target Milestone: ---
This code appears to me to be conforming to the C++ standard, but it's rejected
by G++/libstdc++:
#include <set>
struct compare {
bool operator()(int a, int b);
};
void func() {
const std::set<int, compare> s;
s.find(0);
}
because compare::operator() is not const qualified.
N3690 [associative.reqmts]p2 says "The object of type Compare is called the
comparison object of the container", and p3 talks about the requirements on
behavior of a comparison object comp. However, none of the requirements seem
to impose requirements on objects of type const Compare.
