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wip: Add a test for double eval

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This commit is contained in:
Matthias Clasen
2025-03-22 13:23:25 -04:00
parent ff8cd60bfc
commit 8b5da746e7
1 changed files with 36 additions and 0 deletions
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36
glib/tests/macros.c
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@@ -140,6 +140,41 @@ test_struct_sizeof_member (void)
g_assert_cmpint (G_SIZEOF_MEMBER (struct { char a; int b; }, b), ==, sizeof (int));
}
#if G_GNUC_CHECK_VERSION(4, 6)
_Pragma ("GCC diagnostic push")
_Pragma ("GCC diagnostic ignored \"-Wsequence-point\"")
#endif
static void
test_double_eval (void)
{
int i, j;
i = 1;
j = 1;
/* Note: this is *not* correct use of these macros */
g_print ("%d\n", MAX(++i, ++j));
i = j = 1;
g_assert_true (MAX (++i, ++j) == 3);
g_assert_true (i == 2);
g_assert_true (j == 3);
g_assert_true (MIN (--i, --j) == 1);
g_assert_true (i == 1);
j = 3;
g_assert_true (CLAMP (5, ++i, ++j) == 4);
i = -5;
g_assert_true (ABS (++i) == 4);
}
#if G_GNUC_CHECK_VERSION(4, 6)
_Pragma ("GCC diagnostic pop")
#endif
int
main (int argc,
char *argv[])
@@ -153,6 +188,7 @@ main (int argc,
g_test_add_func ("/alignof/fallback", test_alignof_fallback);
g_test_add_func ("/assert/static", test_assert_static);
g_test_add_func ("/struct/sizeof_member", test_struct_sizeof_member);
g_test_add_func ("/common-macros/double-eval", test_double_eval);
return g_test_run ();
}