[Bug c/51437] GCC should warn on the use of reserved identifier/macro names

[tkoenig at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51437

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
                 CC|                            |tkoenig at gcc dot gnu.org
   Last reconfirmed|                            |2021-11-18
             Status|UNCONFIRMED                 |NEW

--- Comment #15 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
There should at least be a warning for code like

double 
sin(double x) {
  return x/2 + x;
}

double
foo(double x) {
  return 1 - sin(-x);
}