# [PATCH] CodingGuidelines: document // comments 2 messages from 2026-02-11 to 2026-02-12. Participants: Junio C Hamano, Patrick Steinhardt. Thread: https://gitlist.dev/t/64981 ## Junio C Hamano, 2026-02-11 19:17 Subject: [PATCH] CodingGuidelines: document // comments Message-ID: URL: https://gitlist.dev/e/xmqqikc3t7hf.fsf%40gitster.g ``` We do not use // comments in our C code, which is implied by the description of multi-line comment rule and its examples, but is not explicitly spelled out. Spell it out. Signed-off-by: Junio C Hamano --- Documentation/CodingGuidelines | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines index b358d6bfb8..507d52b0d3 100644 --- a/Documentation/CodingGuidelines +++ b/Documentation/CodingGuidelines @@ -439,6 +439,8 @@ For C programs: */ _("Here is a translatable string explained by the above."); + We do not use // comments. + - Double negation is often harder to understand than no negation at all. -- 2.53.0-247-g50a2c88be3 ``` ## Patrick Steinhardt, 2026-02-12 07:05 Subject: Re: [PATCH] CodingGuidelines: document // comments Message-ID: URL: https://gitlist.dev/e/aY17sNHtr9ZM9qOr%40pks.im In-Reply-To: ``` On Wed, Feb 11, 2026 at 11:17:48AM -0800, Junio C Hamano wrote: > We do not use // comments in our C code, which is implied by the > description of multi-line comment rule and its examples, but is not > explicitly spelled out. Spell it out. > > Signed-off-by: Junio C Hamano > --- > Documentation/CodingGuidelines | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines > index b358d6bfb8..507d52b0d3 100644 > --- a/Documentation/CodingGuidelines > +++ b/Documentation/CodingGuidelines > @@ -439,6 +439,8 @@ For C programs: > */ > _("Here is a translatable string explained by the above."); > > + We do not use // comments. > + > - Double negation is often harder to understand than no negation > at all. Makes sense and looks good to me. Thanks! Patrick ```