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Avoid -Wuse-after-free in tests [BZ #26779].

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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Martin Sebor
2022-01-25 15:39:38 -07:00
parent e4ba8fee1a
commit c094c232eb
6 changed files with 60 additions and 2 deletions
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8
malloc/tst-realloc.c
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@ -138,8 +138,16 @@ do_test (void)
if (ok == 0)
merror ("first 16 bytes were not correct after failed realloc");
#if __GNUC_PREREQ (12, 0)
/* Ignore a valid warning about using a pointer made indeterminate
by a prior call to realloc(). */
DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
#endif
/* realloc (p, 0) frees p (C89) and returns NULL (glibc). */
p = realloc (p, 0);
#if __GNUC_PREREQ (12, 0)
DIAG_POP_NEEDS_COMMENT;
#endif
if (p != NULL)
merror ("realloc (p, 0) returned non-NULL.");