Export of internal Abseil changes.
-- cd076f55c1fa600131f6dda392533dfe61679fc0 by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 224008762 -- e05f62b01286d51044ff86ec6ef565749b9faf82 by Abseil Team <absl-team@google.com>: Create a pow10() test helper function to compute guaranteed-precise double values of 10^x. Not all standard libraries ship bit-accurate pow() functions, causing tests to fail that rely on expected values generated by it. PiperOrigin-RevId: 223883762 -- fd88e5e3f7ab80f7f5df9fd1488cd58b4573be69 by Abseil Team <absl-team@google.com>: Remove some absl:: qualifications to work around inline namespace bugs on MSVC 2015. PiperOrigin-RevId: 223869642 -- 6276cfff969d596edd36a2bbaba65ee045808903 by Abseil Team <absl-team@google.com>: Update absl/memory/CMakeLists.txt to use new functions i.e. absl_cc_(library|test) PiperOrigin-RevId: 223854224 -- 359de9afc7a34c975fd3e0cbc52afd96637d97bd by Chris Kennelly <ckennelly@google.com>: Mark spinlock_benchmark_common as alwayslink = 1. PiperOrigin-RevId: 223844536 -- 450cd8cbe2789a6d54ed1eb87170259bb334f8b9 by Abseil Team <absl-team@google.com>: Support .* (pointer-to-member dereference) expressions in demangle.cc. PiperOrigin-RevId: 223826797 -- 772ca92179c3634f3e31a80bbc272ed8022e3572 by Abseil Team <absl-team@google.com>: Fix misspellings in absl::variant comments and replace a ' with a `. PiperOrigin-RevId: 223807911 -- 35dcdc2fbf299d195658aac101887f6dcad1de2f by Abseil Team <absl-team@google.com>: Bug fix in CMakeLists.txt file (SRCS --> HDRS). The compressed_tuple header-only library is being defined with the SRCS parameter instead of the HDRS parameter and this has been observed to cause some builds on some platforms to attempt to create a static library from it which fails since there are no .cc sources. PiperOrigin-RevId: 223805367 -- 4a57a3d2045bb137c0c97958e45ce425190b8d3e by Chris Kennelly <ckennelly@google.com>: Add test that absl::make_unique value initializes memory. PiperOrigin-RevId: 223801819 -- dfe8289d7f4dcc6bb568a26aaf192a89e896bdfd by Chris Kennelly <ckennelly@google.com>: SpinLock: Use exchange to avoid missing wakeups. The default fast path for SpinLock::Unlock does not use an atomic. If the SpinLock becomes contended while we are unlocking between lockword_.load and lockword_.store, we will fail to wake up the new waiter. This can cause unexpected latency spikes. PiperOrigin-RevId: 223800369 -- 9b9d35df786482f0016f77dd31691eff81503d23 by Abseil Team <absl-team@google.com>: Update absl/hash/CMakeLists.txt to use new functions i.e. absl_cc_(library|test) PiperOrigin-RevId: 223755819 -- c2014e2704b87e7cdce2d2a0287c7e2397752296 by Abseil Team <absl-team@google.com>: Update absl/debugging/CMakeLists.txt to use new functions i.e. absl_cc_(library|test) PiperOrigin-RevId: 223751986 -- d83a4e09126400e3fd80645cb03ee558f532271e by Derek Mauro <dmauro@google.com>: Cleanup synchronization benchmarks. PiperOrigin-RevId: 223589416 -- fad140b473586531b5b12843f942ec27dfcf5e93 by CJ Johnson <johnsoncj@google.com>: Makes unifies the order of forward_iterator and input_iterator overloads PiperOrigin-RevId: 223580660 -- 6cd7c96faa7cc5f79f574e35a1b13837ef187d05 by Abseil Team <absl-team@google.com>: Internal Change. PiperOrigin-RevId: 223561629 -- bd2e545356b0f548af0e3c14bb2f7f0e712e49d0 by Shaindel Schwartz <shaindel@google.com>: Remove misleading comments. try_emplace() does not exist for the hash_set containers. PiperOrigin-RevId: 223543089 -- 0cd380a53b587eb7aacc4003a4a3bbb6c78d7c10 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 223512551 -- 7156dfee599cb72e9adddfe0e6ae07a95ddf10bb by Greg Miller <jgm@google.com>: Fixes UB that would result from constructing, multiplying, or dividing a Duration with a double "NaN" value. This CL changes the absl::Duration *implementation* to return an InfiniteDuration value that has the same sign as the given NaN. PiperOrigin-RevId: 223407499 -- 196b7d18609958267951882baf7f9429e49bcafa by CJ Johnson <johnsoncj@google.com>: Addresses NVCC+MSVC compilation bug where `inlined_capacity()` was not considered valid in constexpr PiperOrigin-RevId: 223397718 GitOrigin-RevId: cd076f55c1fa600131f6dda392533dfe61679fc0 Change-Id: I5423ca6470f661a7c6f73aa8fee49990446f157f
This commit is contained in:
Abseil Team
CJ Johnson
parent
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commit
44b0fafc62
30 changed files with 1126 additions and 383 deletions
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@ -15,6 +15,7 @@
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// Implementation details of absl/types/variant.h, pulled into a
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// separate file to avoid cluttering the top of the API header with
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// implementation details.
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//
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#ifndef ABSL_TYPES_variant_internal_H_
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#define ABSL_TYPES_variant_internal_H_
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@ -1234,23 +1235,29 @@ using VariantCopyBase = absl::conditional_t<
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// Base that is dependent on whether or not the move-assign can be trivial.
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template <class... T>
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using VariantMoveAssignBase = absl::conditional_t<
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absl::disjunction<absl::conjunction<absl::is_move_assignable<Union<T...>>,
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std::is_move_constructible<Union<T...>>,
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std::is_destructible<Union<T...>>>,
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absl::negation<absl::conjunction<
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std::is_move_constructible<T>...,
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absl::is_move_assignable<T>...>>>::value,
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absl::disjunction<
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absl::conjunction<absl::is_move_assignable<Union<T...>>,
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std::is_move_constructible<Union<T...>>,
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std::is_destructible<Union<T...>>>,
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absl::negation<absl::conjunction<std::is_move_constructible<T>...,
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// Note: We're not qualifying this with
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// absl:: because it doesn't compile
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// under MSVC.
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is_move_assignable<T>...>>>::value,
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VariantCopyBase<T...>, VariantMoveAssignBaseNontrivial<T...>>;
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// Base that is dependent on whether or not the copy-assign can be trivial.
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template <class... T>
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using VariantCopyAssignBase = absl::conditional_t<
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absl::disjunction<absl::conjunction<absl::is_copy_assignable<Union<T...>>,
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std::is_copy_constructible<Union<T...>>,
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std::is_destructible<Union<T...>>>,
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absl::negation<absl::conjunction<
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std::is_copy_constructible<T>...,
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absl::is_copy_assignable<T>...>>>::value,
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absl::disjunction<
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absl::conjunction<absl::is_copy_assignable<Union<T...>>,
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std::is_copy_constructible<Union<T...>>,
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std::is_destructible<Union<T...>>>,
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absl::negation<absl::conjunction<std::is_copy_constructible<T>...,
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// Note: We're not qualifying this with
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// absl:: because it doesn't compile
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// under MSVC.
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is_copy_assignable<T>...>>>::value,
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VariantMoveAssignBase<T...>, VariantCopyAssignBaseNontrivial<T...>>;
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template <class... T>
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@ -82,7 +82,7 @@ namespace absl {
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// absl::variant
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// -----------------------------------------------------------------------------
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//
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// An 'absl::variant` type is a form of type-safe union. An `absl::variant` --
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// An `absl::variant` type is a form of type-safe union. An `absl::variant` --
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// except in exceptional cases -- always holds a value of one of its alternative
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// types.
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//
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@ -136,7 +136,7 @@ void swap(variant<Ts...>& v, variant<Ts...>& w) noexcept(noexcept(v.swap(w))) {
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// variant_size
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//
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// Returns the number of alterative types available for a given `absl::variant`
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// Returns the number of alternative types available for a given `absl::variant`
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// type as a compile-time constant expression. As this is a class template, it
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// is not generally useful for accessing the number of alternative types of
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// any given `absl::variant` instance.
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@ -454,7 +454,7 @@ class variant<T0, Tn...> : private variant_internal::VariantBase<T0, Tn...> {
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std::is_object<Tn>...>::value,
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"Attempted to instantiate a variant containing a non-object "
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"type.");
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// Intentionally not qualifing `negation` with `absl::` to work around a bug
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// Intentionally not qualifying `negation` with `absl::` to work around a bug
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// in MSVC 2015 with inline namespace and variadic template.
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static_assert(absl::conjunction<negation<std::is_array<T0> >,
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negation<std::is_array<Tn> >...>::value,
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@ -562,7 +562,7 @@ class variant<T0, Tn...> : private variant_internal::VariantBase<T0, Tn...> {
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// Assignment Operators
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// Copy assignement operator
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// Copy assignment operator
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variant& operator=(const variant& other) = default;
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// Move assignment operator
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