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bulk-checkin: fix sign compare warnings

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In file bulk-checkin.c, three warnings are emitted by
"-Wsign-compare", two of which are caused by trivial loop iterator
type mismatches.  For the third case, the type of `rsize` from

			ssize_t rsize = size < sizeof(ibuf) ? size : sizeof(ibuf);

can be changed to size_t as both options of the ternary expression are
unsigned and the signedness of the variable isn't really needed
anywhere.

To prevent `read_result != rsize` making a clash, it is to be noted
that `read_result` is checked not to hold negative values.  Therefore
casting the variable to size_t is a safe operation and enough to
remove the sign-compare warning.

Fix issues accordingly, and remove `DISABLE_SIGN_COMPARE_WARNINGS` to
enable "-Wsign-compare" for the file.

Signed-off-by: Tuomas Ahola <taahol@utu.fi>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Tuomas Ahola
2025-03-24 23:47:03 +02:00
committed by Junio C Hamano
parent 683c54c999
commit 133d065dd6
1 changed files with 6 additions and 10 deletions
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16
bulk-checkin.c
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@@ -3,7 +3,6 @@
*/ */
#define USE_THE_REPOSITORY_VARIABLE #define USE_THE_REPOSITORY_VARIABLE
#define DISABLE_SIGN_COMPARE_WARNINGS
#include "git-compat-util.h" #include "git-compat-util.h"
#include "bulk-checkin.h" #include "bulk-checkin.h"
@@ -56,7 +55,6 @@ static void flush_bulk_checkin_packfile(struct bulk_checkin_packfile *state)
{ {
unsigned char hash[GIT_MAX_RAWSZ]; unsigned char hash[GIT_MAX_RAWSZ];
struct strbuf packname = STRBUF_INIT; struct strbuf packname = STRBUF_INIT;
int i;
if (!state->f) if (!state->f)
return; return;
@@ -82,7 +80,7 @@ static void flush_bulk_checkin_packfile(struct bulk_checkin_packfile *state)
finish_tmp_packfile(&packname, state->pack_tmp_name, finish_tmp_packfile(&packname, state->pack_tmp_name,
state->written, state->nr_written, state->written, state->nr_written,
&state->pack_idx_opts, hash); &state->pack_idx_opts, hash);
for (i = 0; i < state->nr_written; i++) for (uint32_t i = 0; i < state->nr_written; i++)
free(state->written[i]); free(state->written[i]);
clear_exit: clear_exit:
@@ -131,14 +129,12 @@ static void flush_batch_fsync(void)
static int already_written(struct bulk_checkin_packfile *state, struct object_id *oid) static int already_written(struct bulk_checkin_packfile *state, struct object_id *oid)
{ {
int i;
/* The object may already exist in the repository */ /* The object may already exist in the repository */
if (repo_has_object_file(the_repository, oid)) if (repo_has_object_file(the_repository, oid))
return 1; return 1;
/* Might want to keep the list sorted */ /* Might want to keep the list sorted */
for (i = 0; i < state->nr_written; i++) for (uint32_t i = 0; i < state->nr_written; i++)
if (oideq(&state->written[i]->oid, oid)) if (oideq(&state->written[i]->oid, oid))
return 1; return 1;
@@ -182,13 +178,13 @@ static int stream_blob_to_pack(struct bulk_checkin_packfile *state,
while (status != Z_STREAM_END) { while (status != Z_STREAM_END) {
if (size && !s.avail_in) { if (size && !s.avail_in) {
ssize_t rsize = size < sizeof(ibuf) ? size : sizeof(ibuf); size_t rsize = size < sizeof(ibuf) ? size : sizeof(ibuf);
ssize_t read_result = read_in_full(fd, ibuf, rsize); ssize_t read_result = read_in_full(fd, ibuf, rsize);
if (read_result < 0) if (read_result < 0)
die_errno("failed to read from '%s'", path); die_errno("failed to read from '%s'", path);
if (read_result != rsize) if ((size_t)read_result != rsize)
die("failed to read %d bytes from '%s'", die("failed to read %u bytes from '%s'",
(int)rsize, path); (unsigned)rsize, path);
offset += rsize; offset += rsize;
if (*already_hashed_to < offset) { if (*already_hashed_to < offset) {
size_t hsize = offset - *already_hashed_to; size_t hsize = offset - *already_hashed_to;