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-rw-r--r--absl/random/internal/distribution_impl_test.cc42
1 files changed, 0 insertions, 42 deletions
diff --git a/absl/random/internal/distribution_impl_test.cc b/absl/random/internal/distribution_impl_test.cc
index 09e7a31..fcc1690 100644
--- a/absl/random/internal/distribution_impl_test.cc
+++ b/absl/random/internal/distribution_impl_test.cc
@@ -461,46 +461,4 @@ TEST(DistributionImplTest, ExhaustiveFloat) {
}
}
-TEST(DistributionImplTest, MultiplyU64ToU128Test) {
- using absl::random_internal::MultiplyU64ToU128;
- constexpr uint64_t k1 = 1;
- constexpr uint64_t kMax = ~static_cast<uint64_t>(0);
-
- EXPECT_EQ(absl::uint128(0), MultiplyU64ToU128(0, 0));
-
- // Max uint64
- EXPECT_EQ(MultiplyU64ToU128(kMax, kMax),
- absl::MakeUint128(0xfffffffffffffffe, 0x0000000000000001));
- EXPECT_EQ(absl::MakeUint128(0, kMax), MultiplyU64ToU128(kMax, 1));
- EXPECT_EQ(absl::MakeUint128(0, kMax), MultiplyU64ToU128(1, kMax));
- for (int i = 0; i < 64; ++i) {
- EXPECT_EQ(absl::MakeUint128(0, kMax) << i,
- MultiplyU64ToU128(kMax, k1 << i));
- EXPECT_EQ(absl::MakeUint128(0, kMax) << i,
- MultiplyU64ToU128(k1 << i, kMax));
- }
-
- // 1-bit x 1-bit.
- for (int i = 0; i < 64; ++i) {
- for (int j = 0; j < 64; ++j) {
- EXPECT_EQ(absl::MakeUint128(0, 1) << (i + j),
- MultiplyU64ToU128(k1 << i, k1 << j));
- EXPECT_EQ(absl::MakeUint128(0, 1) << (i + j),
- MultiplyU64ToU128(k1 << i, k1 << j));
- }
- }
-
- // Verified multiplies
- EXPECT_EQ(MultiplyU64ToU128(0xffffeeeeddddcccc, 0xbbbbaaaa99998888),
- absl::MakeUint128(0xbbbb9e2692c5dddc, 0xc28f7531048d2c60));
- EXPECT_EQ(MultiplyU64ToU128(0x0123456789abcdef, 0xfedcba9876543210),
- absl::MakeUint128(0x0121fa00ad77d742, 0x2236d88fe5618cf0));
- EXPECT_EQ(MultiplyU64ToU128(0x0123456789abcdef, 0xfdb97531eca86420),
- absl::MakeUint128(0x0120ae99d26725fc, 0xce197f0ecac319e0));
- EXPECT_EQ(MultiplyU64ToU128(0x97a87f4f261ba3f2, 0xfedcba9876543210),
- absl::MakeUint128(0x96fbf1a8ae78d0ba, 0x5a6dd4b71f278320));
- EXPECT_EQ(MultiplyU64ToU128(0xfedcba9876543210, 0xfdb97531eca86420),
- absl::MakeUint128(0xfc98c6981a413e22, 0x342d0bbf48948200));
-}
-
} // namespace