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-rw-r--r--libj2_minus_j2u.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/libj2_minus_j2u.c b/libj2_minus_j2u.c
index c0609f9..f19c5b7 100644
--- a/libj2_minus_j2u.c
+++ b/libj2_minus_j2u.c
@@ -66,11 +66,17 @@ main(void)
}
for (i = 0; i < 256; i++) {
- a.high = b.high = random_ju();
+ a.high = b.high = random_ju() >> 1;
a.low = b.low = random_ju();
minus_j2u(&a);
libj2_j2u_add_j2u(&a, &b);
EXPECT(libj2_j2u_is_zero(&a));
+
+ a.high = b.high ^= UINTMAX_MAX;
+ a.low = b.low ^= UINTMAX_MAX;
+ minus_j2u(&a);
+ libj2_j2u_add_j2u(&a, &b);
+ EXPECT(libj2_j2u_is_zero(&a));
}
return 0;