[Bug libstdc++/79789] New: [7 Regression] non-reserved names in

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79789

            Bug ID: 79789
           Summary: [7 Regression] non-reserved names in <type_traits>
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
  Target Milestone: ---

This fails to compile in C++17 mode:

#define T 1
#include <type_traits>