TEST_END
TEST_BEGIN(test_overflow) {
size_t largemax;
void *p;
largemax = get_large_size(get_nlarge()-1);
p = mallocx(1, 0);
assert_ptr_not_null(p, "Unexpected mallocx() failure");
assert_ptr_null(rallocx(p, largemax+1, 0),
"Expected OOM for rallocx(p, size=%#zx, 0)", largemax+1);
assert_ptr_null(rallocx(p, ZU(PTRDIFF_MAX)+1, 0),
"Expected OOM for rallocx(p, size=%#zx, 0)", ZU(PTRDIFF_MAX)+1);
assert_ptr_null(rallocx(p, SIZE_T_MAX, 0),
"Expected OOM for rallocx(p, size=%#zx, 0)", SIZE_T_MAX);
assert_ptr_null(rallocx(p, 1, MALLOCX_ALIGN(ZU(PTRDIFF_MAX)+1)),
"Expected OOM for rallocx(p, size=1, MALLOCX_ALIGN(%#zx))",
ZU(PTRDIFF_MAX)+1);
dallocx(p, 0);
}
TEST_END
TEST_BEGIN(test_extra_huge)
{
int flags = MALLOCX_ARENA(arena_ind());
size_t largemax, huge1, huge2, huge3, hugemax;
void *p;
/* Get size classes. */
largemax = get_large_size(get_nlarge()-1);
huge1 = get_huge_size(1);
huge2 = get_huge_size(2);
huge3 = get_huge_size(3);
hugemax = get_huge_size(get_nhuge()-1);
p = mallocx(huge3, flags);
assert_ptr_not_null(p, "Unexpected mallocx() error");
assert_zu_eq(xallocx(p, huge3, 0, flags), huge3,
"Unexpected xallocx() behavior");
/* Test size decrease with zero extra. */
assert_zu_ge(xallocx(p, huge1, 0, flags), huge1,
"Unexpected xallocx() behavior");
assert_zu_ge(xallocx(p, largemax, 0, flags), huge1,
"Unexpected xallocx() behavior");
assert_zu_eq(xallocx(p, huge3, 0, flags), huge3,
"Unexpected xallocx() behavior");
/* Test size decrease with non-zero extra. */
assert_zu_eq(xallocx(p, huge1, huge3 - huge1, flags), huge3,
"Unexpected xallocx() behavior");
assert_zu_eq(xallocx(p, huge2, huge3 - huge2, flags), huge3,
"Unexpected xallocx() behavior");
assert_zu_eq(xallocx(p, huge1, huge2 - huge1, flags), huge2,
"Unexpected xallocx() behavior");
assert_zu_ge(xallocx(p, largemax, huge1 - largemax, flags), huge1,
"Unexpected xallocx() behavior");
assert_zu_ge(xallocx(p, huge1, 0, flags), huge1,
"Unexpected xallocx() behavior");
/* Test size increase with zero extra. */
assert_zu_le(xallocx(p, huge3, 0, flags), huge3,
"Unexpected xallocx() behavior");
assert_zu_le(xallocx(p, hugemax+1, 0, flags), huge3,
"Unexpected xallocx() behavior");
assert_zu_ge(xallocx(p, huge1, 0, flags), huge1,
"Unexpected xallocx() behavior");
/* Test size increase with non-zero extra. */
assert_zu_le(xallocx(p, huge1, SIZE_T_MAX - huge1, flags), hugemax,
"Unexpected xallocx() behavior");
assert_zu_ge(xallocx(p, huge1, 0, flags), huge1,
"Unexpected xallocx() behavior");
/* Test size increase with non-zero extra. */
assert_zu_le(xallocx(p, huge1, huge3 - huge1, flags), huge3,
"Unexpected xallocx() behavior");
assert_zu_eq(xallocx(p, huge3, 0, flags), huge3,
"Unexpected xallocx() behavior");
/* Test size+extra overflow. */
assert_zu_le(xallocx(p, huge3, hugemax - huge3 + 1, flags), hugemax,
"Unexpected xallocx() behavior");
dallocx(p, flags);
}
