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| author | Abseil Team <absl-team@google.com> | 2019-03-12T18·39-0700 |
|---|---|---|
| committer | vslashg <gfalcon@google.com> | 2019-03-12T19·07-0400 |
| commit | 256be563447a315f2a7993ec669460ba475fa86a (patch) | |
| tree | 80d363bf7055929227415cd3f46f1b1ac62b6944 /absl/numeric/int128_test.cc | |
| parent | 88a152ae747c3c42dc9167d46c590929b048d436 (diff) | |
Export of internal Abseil changes.
-- 00d42e3d5433aaf29c2ed293520b2ba178ae8bdb by Greg Falcon <gfalcon@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 238061818 -- 867a7ca318fac2991ea9a4107dbae3cc9fbf974a by Abseil Team <absl-team@google.com>: Added a IWYU export pragma when including a standard header for the purpose of aliasing its symbols. PiperOrigin-RevId: 238022277 -- 17047745058f2f151cd986ea9f649512542d3876 by Matt Armstrong <marmstrong@google.com>: Clarify the comment discouraging WrapUnique<T>(x) calls. PiperOrigin-RevId: 237873803 -- 3dcb2e4968243d33ca0ce53280c445df50f4a7ec by Samuel Benzaquen <sbenza@google.com>: Workaround clang bug https://bugs.llvm.org/show_bug.cgi?id=38289 PiperOrigin-RevId: 237873551 -- f348d2dc7087a990cbdfb95aa51fd7ff478ae40e by Samuel Benzaquen <sbenza@google.com>: Reduce minimum capacity to 1. This reduces memory usage for small tables. A flat_hash_set<int> of 1 element goes from 92 bytes to 24. A flat_hash_set<string> of 1 element goes from 512 bytes to 56. PiperOrigin-RevId: 237859811 -- 9c8125be5e4e5d22a7bb62bdec8c323338385c1b by Jon Cohen <cohenjon@google.com>: Bump to CMake 3.5. This is the oldest modern cmake being included by default in most popular OS distributions according to https://repology.org/project/cmake/versions. Specifically, Ubuntu LTS 16.04 uses cmake 3.5 (https://packages.ubuntu.com/xenial/cmake) PiperOrigin-RevId: 237859345 -- 07638d672e0a4dced986a62750cfd8318ed36ffa by Derek Mauro <dmauro@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 237714597 GitOrigin-RevId: 00d42e3d5433aaf29c2ed293520b2ba178ae8bdb Change-Id: I5faecc45add4a5a774d4f9baf06e5519091f2ccc
Diffstat (limited to 'absl/numeric/int128_test.cc')
| -rw-r--r-- | absl/numeric/int128_test.cc | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/absl/numeric/int128_test.cc b/absl/numeric/int128_test.cc index 216ec50c54ec..5e1b5ec352b0 100644 --- a/absl/numeric/int128_test.cc +++ b/absl/numeric/int128_test.cc @@ -271,6 +271,20 @@ TEST(Uint128, ConversionTests) { EXPECT_EQ(static_cast<absl::uint128>(round_to_zero), 0); EXPECT_EQ(static_cast<absl::uint128>(round_to_five), 5); EXPECT_EQ(static_cast<absl::uint128>(round_to_nine), 9); + + absl::uint128 highest_precision_in_long_double = + ~absl::uint128{} >> (128 - std::numeric_limits<long double>::digits); + EXPECT_EQ(highest_precision_in_long_double, + static_cast<absl::uint128>( + static_cast<long double>(highest_precision_in_long_double))); + // Apply a mask just to make sure all the bits are the right place. + const absl::uint128 arbitrary_mask = + absl::MakeUint128(0xa29f622677ded751, 0xf8ca66add076f468); + EXPECT_EQ(highest_precision_in_long_double & arbitrary_mask, + static_cast<absl::uint128>(static_cast<long double>( + highest_precision_in_long_double & arbitrary_mask))); + + EXPECT_EQ(static_cast<absl::uint128>(-0.1L), 0); } TEST(Uint128, OperatorAssignReturnRef) { |