#include <bits/concept_check.h>
-namespace __gnu_norm
+namespace _GLIBCXX_STD
{
// Forward declarations of operators < and ==, needed for friend declaration.
template<class _Key, class _Compare = less<_Key>,
swap(set<_Key,_Compare,_Alloc>& __x, set<_Key,_Compare,_Alloc>& __y)
{ __x.swap(__y); }
-} // namespace __gnu_norm
+} // namespace std
#endif /* _SET_H */