From 41f43b8243f42b9df2e98be8460646d4c0100ad3 Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Fri, 6 Dec 2024 11:27:19 +0100 Subject: global: mark code units that generate warnings with `-Wsign-compare` Mark code units that generate warnings with `-Wsign-compare`. This allows for a structured approach to get rid of all such warnings over time in a way that can be easily measured. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- builtin/patch-id.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'builtin/patch-id.c') diff --git a/builtin/patch-id.c b/builtin/patch-id.c index 93b398e391..5658575747 100644 --- a/builtin/patch-id.c +++ b/builtin/patch-id.c @@ -1,4 +1,6 @@ #define USE_THE_REPOSITORY_VARIABLE +#define DISABLE_SIGN_COMPARE_WARNINGS + #include "builtin.h" #include "config.h" #include "diff.h" -- cgit v1.3 From efb38ad49fb2dd7bf6e732df0c59f3c1aeba2f76 Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Fri, 6 Dec 2024 11:27:29 +0100 Subject: builtin/patch-id: fix type of `get_one_patchid()` In `get_one_patchid()` we assign either the result of `strlen()` or `remove_space()` to `len`. But while the former correctly returns a `size_t`, the latter returns an `int` to indicate the length of the stripped string even though it cannot ever return a negative value. This causes a warning with "-Wsign-conversion". In fact, even `get_one_patchid()` itself is also using an integer as return value even though it always returns the length of the patch, and this bubbles up to other callers. Adapt the function and its helpers to use `size_t` for string lengths consistently. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- builtin/patch-id.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'builtin/patch-id.c') diff --git a/builtin/patch-id.c b/builtin/patch-id.c index 5658575747..f540d8daa7 100644 --- a/builtin/patch-id.c +++ b/builtin/patch-id.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "builtin.h" #include "config.h" @@ -10,13 +9,13 @@ #include "parse-options.h" #include "setup.h" -static void flush_current_id(int patchlen, struct object_id *id, struct object_id *result) +static void flush_current_id(size_t patchlen, struct object_id *id, struct object_id *result) { if (patchlen) printf("%s %s\n", oid_to_hex(result), oid_to_hex(id)); } -static int remove_space(char *line) +static size_t remove_space(char *line) { char *src = line; char *dst = line; @@ -63,10 +62,11 @@ static int scan_hunk_header(const char *p, int *p_before, int *p_after) return 1; } -static int get_one_patchid(struct object_id *next_oid, struct object_id *result, - struct strbuf *line_buf, int stable, int verbatim) +static size_t get_one_patchid(struct object_id *next_oid, struct object_id *result, + struct strbuf *line_buf, int stable, int verbatim) { - int patchlen = 0, found_next = 0; + size_t patchlen = 0; + int found_next = 0; int before = -1, after = -1; int diff_is_binary = 0; char pre_oid_str[GIT_MAX_HEXSZ + 1], post_oid_str[GIT_MAX_HEXSZ + 1]; @@ -78,7 +78,7 @@ static int get_one_patchid(struct object_id *next_oid, struct object_id *result, while (strbuf_getwholeline(line_buf, stdin, '\n') != EOF) { char *line = line_buf->buf; const char *p = line; - int len; + size_t len; /* Possibly skip over the prefix added by "log" or "format-patch" */ if (!skip_prefix(line, "commit ", &p) && @@ -179,7 +179,7 @@ static int get_one_patchid(struct object_id *next_oid, struct object_id *result, static void generate_id_list(int stable, int verbatim) { struct object_id oid, n, result; - int patchlen; + size_t patchlen; struct strbuf line_buf = STRBUF_INIT; oidclr(&oid, the_repository->hash_algo); -- cgit v1.3