[Bug c++/90875] New: warnings about switch values outside range don't have associated option

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90875

            Bug ID: 90875
           Summary: warnings about switch values outside range don't have
                    associated option
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org
  Target Milestone: ---

See c_do_switch_warnings.  E.g.,

void f(char c)
{
  switch (c)
    case 300:;
}

z.C: In function ‘void f(char)’:
z.C:4:5: warning: case label value exceeds maximum value for type
    4 |     case 300:;
      |     ^~~~