diff options
author | Abseil Team <absl-team@google.com> | 2020-09-18 15:55:15 -0700 |
---|---|---|
committer | Derek Mauro <dmauro@google.com> | 2020-09-24 13:47:15 -0400 |
commit | b56cbdd23834a65682c0b46f367f8679e83bc894 (patch) | |
tree | dacab9a64dd1a9e9668737e511d1a5420ff96001 /absl/numeric/int128.h | |
parent | b832dce8489ef7b6231384909fd9b68d5a5ff2b7 (diff) |
Abseil LTS 2020092320200923
What's New:
* `absl::StatusOr<T>` has been released. See our [blog
post](https://abseil.io/blog/2020-091021-status) for more
information.
* Abseil Flags reflection interfaces have been released.
* Abseil Flags memory usage has been significantly optimized.
* Abseil now supports a "hardened" build mode. This build mode enables
runtime checks that guard against programming errors that may lead
to security vulnerabilities.
Notable Fixes:
* Sanitizer dynamic annotations like `AnnotateRWLockCreate` that are
also defined by the compiler sanitizer implementation are no longer
also defined by Abseil.
* Sanitizer macros are now prefixed with `ABSL_` to avoid naming collisions.
* Sanitizer usage is now automatically detected and no longer requires
macros like `ADDRESS_SANITIZER` to be defined on the command line.
Breaking Changes:
* Abseil no longer contains a `dynamic_annotations` library. Users
using a supported build system (Bazel or CMake) are unaffected by
this, but users manually specifying link libraries may get an error
about a missing linker input.
Baseline: 7680a5f8efe32de4753baadbd63e74e59d95bac1
Cherry picks: None
Diffstat (limited to 'absl/numeric/int128.h')
-rw-r--r-- | absl/numeric/int128.h | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/absl/numeric/int128.h b/absl/numeric/int128.h index 636e3a5b..0dd814a8 100644 --- a/absl/numeric/int128.h +++ b/absl/numeric/int128.h @@ -792,28 +792,21 @@ inline bool operator!=(uint128 lhs, uint128 rhs) { } inline bool operator<(uint128 lhs, uint128 rhs) { +#ifdef ABSL_HAVE_INTRINSIC_INT128 + return static_cast<unsigned __int128>(lhs) < + static_cast<unsigned __int128>(rhs); +#else return (Uint128High64(lhs) == Uint128High64(rhs)) ? (Uint128Low64(lhs) < Uint128Low64(rhs)) : (Uint128High64(lhs) < Uint128High64(rhs)); +#endif } -inline bool operator>(uint128 lhs, uint128 rhs) { - return (Uint128High64(lhs) == Uint128High64(rhs)) - ? (Uint128Low64(lhs) > Uint128Low64(rhs)) - : (Uint128High64(lhs) > Uint128High64(rhs)); -} +inline bool operator>(uint128 lhs, uint128 rhs) { return rhs < lhs; } -inline bool operator<=(uint128 lhs, uint128 rhs) { - return (Uint128High64(lhs) == Uint128High64(rhs)) - ? (Uint128Low64(lhs) <= Uint128Low64(rhs)) - : (Uint128High64(lhs) <= Uint128High64(rhs)); -} +inline bool operator<=(uint128 lhs, uint128 rhs) { return !(rhs < lhs); } -inline bool operator>=(uint128 lhs, uint128 rhs) { - return (Uint128High64(lhs) == Uint128High64(rhs)) - ? (Uint128Low64(lhs) >= Uint128Low64(rhs)) - : (Uint128High64(lhs) >= Uint128High64(rhs)); -} +inline bool operator>=(uint128 lhs, uint128 rhs) { return !(lhs < rhs); } // Unary operators. @@ -870,6 +863,9 @@ inline uint128& uint128::operator^=(uint128 other) { // Arithmetic operators. inline uint128 operator<<(uint128 lhs, int amount) { +#ifdef ABSL_HAVE_INTRINSIC_INT128 + return static_cast<unsigned __int128>(lhs) << amount; +#else // uint64_t shifts of >= 64 are undefined, so we will need some // special-casing. if (amount < 64) { @@ -881,9 +877,13 @@ inline uint128 operator<<(uint128 lhs, int amount) { return lhs; } return MakeUint128(Uint128Low64(lhs) << (amount - 64), 0); +#endif } inline uint128 operator>>(uint128 lhs, int amount) { +#ifdef ABSL_HAVE_INTRINSIC_INT128 + return static_cast<unsigned __int128>(lhs) >> amount; +#else // uint64_t shifts of >= 64 are undefined, so we will need some // special-casing. if (amount < 64) { @@ -895,6 +895,7 @@ inline uint128 operator>>(uint128 lhs, int amount) { return lhs; } return MakeUint128(0, Uint128High64(lhs) >> (amount - 64)); +#endif } inline uint128 operator+(uint128 lhs, uint128 rhs) { |