Export of internal Abseil changes
-- 00f5301405423005d9129935c05f20155536cc1a by CJ Johnson <johnsoncj@google.com>: Removes usage of std::aligned_storage from Abseil implementation details PiperOrigin-RevId: 296492301 -- fc11d15f91764612fba080669d2381dc181df52b by Abseil Team <absl-team@google.com>: Fix absl::bind_front documentation. PiperOrigin-RevId: 296482945 -- 0164c595c129c46bf21ae74eba5399a1da5f140b by Gennadiy Rozental <rogeeff@google.com>: Automated g4 rollback of changelist 296320700. PiperOrigin-RevId: 296439968 -- 1eb295700758ca0894d872b2de7c675b4ad679af by Abseil Team <absl-team@google.com>: Removes duplicate comments. PiperOrigin-RevId: 296433214 -- c30c01caae02d2fa4ef783d988de6bebb9757c39 by Derek Mauro <dmauro@google.com>: Merge GitHub #621: Add RISCV support to GetProgramCounter() Fixes #621 PiperOrigin-RevId: 296351174 -- 95d4498167596fd7543e025bdfe9a8da9e2ca3c8 by Abseil Team <absl-team@google.com>: Automated g4 rollback of changelist 296320700. PiperOrigin-RevId: 296348701 -- b193f0543e0cec54dddb2ed51f45dc489c8d06d5 by Gennadiy Rozental <rogeeff@google.com>: Change TryParse interface to return managed value. In addition introduce companion StoreValue routine which consumes pointer to source value and stores the value inside of FlagImpl. In a follow up CL we will change StoreValue implementation to behave differently depending on "value storage kind". We also rename default_src_ to default_value_. PiperOrigin-RevId: 296320700 -- 57e942b485d12912a0a8d0d0b35fa2a62847020f by Derek Mauro <dmauro@google.com>: Merge GitHub #622 * Add missing #ifdef conditionals for ABSL_HAVE_VDSO_SUPPORT PiperOrigin-RevId: 296272830 GitOrigin-RevId: 00f5301405423005d9129935c05f20155536cc1a Change-Id: I1b05eeaf1280f95fb0a2c5f3654995a87c792893
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16 changed files with 131 additions and 135 deletions
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@ -63,16 +63,16 @@ namespace {
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// Type used with std::allocator for allocating and deallocating
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// `CordRepExternal`. std::allocator is used because it opaquely handles the
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// different new / delete overloads available on a given platform.
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using ExternalAllocType =
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absl::aligned_storage_t<absl::cord_internal::ExternalRepAlignment(),
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absl::cord_internal::ExternalRepAlignment()>;
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struct alignas(absl::cord_internal::ExternalRepAlignment()) ExternalAllocType {
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unsigned char value[absl::cord_internal::ExternalRepAlignment()];
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};
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// Returns the number of objects to pass in to std::allocator<ExternalAllocType>
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// allocate() and deallocate() to create enough room for `CordRepExternal` with
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// `releaser_size` bytes on the end.
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constexpr size_t GetExternalAllocNumObjects(size_t releaser_size) {
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// Be sure to round up since `releaser_size` could be smaller than
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// sizeof(ExternalAllocType)`.
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// `sizeof(ExternalAllocType)`.
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return (sizeof(CordRepExternal) + releaser_size + sizeof(ExternalAllocType) -
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1) /
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sizeof(ExternalAllocType);
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