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
				
			
		|  | @ -604,19 +604,16 @@ TEST(FixedArrayTest, Fill) { | |||
|   empty.fill(fill_val); | ||||
| } | ||||
| 
 | ||||
| // TODO(johnsoncj): Investigate InlinedStorage default initialization in GCC 4.x
 | ||||
| #ifndef __GNUC__ | ||||
| TEST(FixedArrayTest, DefaultCtorDoesNotValueInit) { | ||||
|   using T = char; | ||||
|   constexpr auto capacity = 10; | ||||
|   using FixedArrType = absl::FixedArray<T, capacity>; | ||||
|   using FixedArrBuffType = | ||||
|       absl::aligned_storage_t<sizeof(FixedArrType), alignof(FixedArrType)>; | ||||
|   constexpr auto scrubbed_bits = 0x95; | ||||
|   constexpr auto length = capacity / 2; | ||||
| 
 | ||||
|   FixedArrBuffType buff; | ||||
|   std::memset(std::addressof(buff), scrubbed_bits, sizeof(FixedArrBuffType)); | ||||
|   alignas(FixedArrType) unsigned char buff[sizeof(FixedArrType)]; | ||||
|   std::memset(std::addressof(buff), scrubbed_bits, sizeof(FixedArrType)); | ||||
| 
 | ||||
|   FixedArrType* arr = | ||||
|       ::new (static_cast<void*>(std::addressof(buff))) FixedArrType(length); | ||||
|  |  | |||
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