CodingGuidelines: allow the use of bool

We have had a test balloon for C99's bool type since 8277dbe987 (git-compat-util: convert skip_{prefix,suffix}{,_mem} to bool, 2023-12-16). As we've had it over 18 months without any complaints let's declare it a success. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Phillip Wood committed Jul 16, 2025 at 10:38 UTC bfa405ea36b1d3dd9bb3999a6a5590c15af13fae
1 file changed +3
Documentation/CodingGuidelines
+3
@@ -298,6 +298,9 @@ For C programs:
298 . since late 2021 with 44ba10d6, we have had variables declared in
299 the for loop "for (int i = 0; i < 10; i++)".
300
301 + . since late 2023 with 8277dbe987 we have been using the bool type
302 + from <stdbool.h>.
303 +
304 New C99 features that we cannot use yet:
305
306 . %z and %zu as a printf() argument for a size_t (the %z being for