[PATCH v3 11/15] gpg-interface: address -Wsign-comparison warnings
- From
Patrick Steinhardt <ps@pks.im>
- Date
- Dec 5, 2024, 09:36 UTC
- Message-ID
- <20241205-pks-sign-compare-v3-11-e211ee089717@pks.im>
- In-Reply-To
- <20241205-pks-sign-compare-v3-0-e211ee089717@pks.im>
There are a couple of -Wsign-comparison warnings in "gpg-interface.c". Most of them are trivial and simply using signed integers to loop towards an upper unsigned bound.
But in `parse_signed_buffer()` we have one case where the different signedness of the two values of a ternary expression results in a warning. Given that:
- `size` will always be bigger than `len` due to the loop condition.
- `eol` will always be after `buf + len` because it is found via
memchr(3p) starting from `buf + len`.We know that both values will always be natural integers.
Squelch the warning by casting the left-hand side to `size_t`.
Signed-off-by: Patrick Steinhardt <ps@pks.im> --- gpg-interface.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/gpg-interface.c b/gpg-interface.c index a67d80475bf9d8452de0c3ae9bb08ceeb4c11c4b..0896458de5a9889bf5951d9703c37a67e20d3e1a 100644 --- a/gpg-interface.c +++ b/gpg-interface.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "git-compat-util.h" #include "commit.h" @@ -128,9 +127,7 @@ static struct gpg_format *use_format = &gpg_format[0]; static struct gpg_format *get_format_by_name(const char *str) { - int i; - - for (i = 0; i < ARRAY_SIZE(gpg_format); i++) + for (size_t i = 0; i < ARRAY_SIZE(gpg_format); i++) if (!strcmp(gpg_format[i].name, str)) return gpg_format + i; return NULL; @@ -138,9 +135,9 @@ static struct gpg_format *get_format_by_name(const char *str) static struct gpg_format *get_format_by_sig(const char *sig) { - int i, j; + int j; - for (i = 0; i < ARRAY_SIZE(gpg_format); i++) + for (size_t i = 0; i < ARRAY_SIZE(gpg_format); i++) for (j = 0; gpg_format[i].sigs[j]; j++) if (starts_with(sig, gpg_format[i].sigs[j])) return gpg_format + i; @@ -228,7 +225,7 @@ static void parse_gpg_output(struct signature_check *sigc) { const char *buf = sigc->gpg_status; const char *line, *next; - int i, j; + int j; int seen_exclusive_status = 0; /* Iterate over all lines */ @@ -243,7 +240,7 @@ static void parse_gpg_output(struct signature_check *sigc) continue; /* Iterate over all search strings */ - for (i = 0; i < ARRAY_SIZE(sigcheck_gpg_status); i++) { + for (size_t i = 0; i < ARRAY_SIZE(sigcheck_gpg_status); i++) { if (skip_prefix(line, sigcheck_gpg_status[i].check, &line)) { /* * GOODSIG, BADSIG etc. can occur only once for @@ -700,7 +697,7 @@ size_t parse_signed_buffer(const char *buf, size_t size) match = len; eol = memchr(buf + len, '\n', size - len); - len += eol ? eol - (buf + len) + 1 : size - len; + len += eol ? (size_t) (eol - (buf + len) + 1) : size - len; } return match; }
-- 2.47.0.366.g5daf58cba8.dirty