struct NonPOD {
uint64_t x, y;
NonPOD(uint64_t x, uint64_t y) : x(x), y(y) {}
- ~NonPOD() {}
friend hash_code hash_value(const NonPOD &obj) {
return hash_combine(obj.x, obj.y);
}
namespace hashing {
namespace detail {
-template <> struct is_hashable_data<LargeTestInteger> : true_type {};
+template <> struct is_hashable_data<LargeTestInteger> : std::true_type {};
} // namespace detail
} // namespace hashing
TEST(HashingTest, HashValueBasicTest) {
int x = 42, y = 43, c = 'x';
- void *p = 0;
+ void *p = nullptr;
uint64_t i = 71;
const unsigned ci = 71;
volatile int vi = 71;
hash_combine(bigarr[0], l2, bigarr[9], l3, bigarr[18], bigarr[19]));
}
+TEST(HashingTest, HashCombineArgs18) {
+ // This tests that we can pass in up to 18 args.
+#define CHECK_SAME(...) \
+ EXPECT_EQ(hash_combine(__VA_ARGS__), hash_combine(__VA_ARGS__))
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8);
+ CHECK_SAME(1, 2, 3, 4, 5, 6, 7);
+ CHECK_SAME(1, 2, 3, 4, 5, 6);
+ CHECK_SAME(1, 2, 3, 4, 5);
+ CHECK_SAME(1, 2, 3, 4);
+ CHECK_SAME(1, 2, 3);
+ CHECK_SAME(1, 2);
+ CHECK_SAME(1);
+#undef CHECK_SAME
+}
+
}