[Bug c++/113873] New: false warning about #pragma once

[jadexradex at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113873

            Bug ID: 113873
           Summary: false warning about #pragma once
           Product: gcc
           Version: 12.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jadexradex at gmail dot com
  Target Milestone: ---

If you create an empty file with C/C++ extension and write "#pragma once", it
will show warning "#pragma once in main file".

However, this file does not have any code or entry point. So this message may
be misleading.