[Bug c/63357] Warn for P && P and P || P (same expression used multiple times in a condition)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63357

--- Comment #9 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to David Binderman from comment #8)
> This could probably be extended to other operators.

Please open a new PR mentioning this one.