[PATCH 1/2] git-compat-util: add a freez() wrapper around free(x); x = NULL
- From
Ævar Arnfjörð Bjarmason <avarab@gmail.com>
- Date
- Jun 9, 2017, 08:53 UTC
- Message-ID
- <20170609085346.19974-2-avarab@gmail.com>
- In-Reply-To
- <20170609085346.19974-1-avarab@gmail.com>
Add a freez() wrapper for the common pattern of freeing a pointer and assigning NULL to it right afterwards.
The implementation is the same as the (currently unused) XDL_PTRFREE macro in xdiff/xmacros.h added in commit 3443546f6e ("Use a *real* built-in diff generator", 2006-03-24).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> --- git-compat-util.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/git-compat-util.h b/git-compat-util.h index 4b7dcf21ad..21e3710755 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -787,6 +787,7 @@ extern char *xstrdup(const char *str); extern void *xmalloc(size_t size); extern void *xmallocz(size_t size); extern void *xmallocz_gently(size_t size); +#define freez(p) do { if (p) { free(p); (p) = NULL; } } while (0) extern void *xmemdupz(const void *data, size_t len); extern char *xstrndup(const char *str, size_t len); extern void *xrealloc(void *ptr, size_t size);
-- 2.13.0.506.g27d5fe0cd