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Fix gcc strict-overflow error

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Recent gcc (tested with 6.2.1) produces the following error when
compiling with both --enable-warningflags and --enable-debug.
In particular, it seems it is the combination of GCC_STACK_PROTECT_LIB
and -Wstrict-overflow=5 produces the error.

    be_local.c:609:4: error: assuming signed overflow does not occur
                             when simplifying conditional
                             [-Werror=strict-overflow]
    if(count > 0) {

Fix this by changing the type of count from int to size_t, which is
fine since count is never negative.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
This commit is contained in:
Rikard Falkeborn 2016-09-17 17:13:51 +02:00 committed by Allan McRae
parent 07d1e0441b
commit 34f3f1e7a6
1 changed files with 3 additions and 3 deletions
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6
lib/libalpm/be_local.c
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@ -501,7 +501,7 @@ version_error:
static int local_db_populate(alpm_db_t *db) static int local_db_populate(alpm_db_t *db)
{ {
size_t est_count; size_t est_count;
int count = 0; size_t count = 0;
struct stat buf; struct stat buf;
struct dirent *ent = NULL; struct dirent *ent = NULL;
const char *dbpath; const char *dbpath;
@ -607,9 +607,9 @@ static int local_db_populate(alpm_db_t *db)
closedir(dbdir); closedir(dbdir);
if(count > 0) { if(count > 0) {
db->pkgcache->list = alpm_list_msort(db->pkgcache->list, (size_t)count, _alpm_pkg_cmp); db->pkgcache->list = alpm_list_msort(db->pkgcache->list, count, _alpm_pkg_cmp);
} }
_alpm_log(db->handle, ALPM_LOG_DEBUG, "added %d packages to package cache for db '%s'\n", _alpm_log(db->handle, ALPM_LOG_DEBUG, "added %zu packages to package cache for db '%s'\n",
count, db->treename); count, db->treename);
return count; return count;