Export of internal Abseil changes

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990253454819ce26ff1dda9ab4bbc145b61d01e4 by Xiaoyi Zhang <zhangxy@google.com>:

Import github PR https://github.com/abseil/abseil-cpp/pull/645

PiperOrigin-RevId: 303119797

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5ac845cb7929b7d1eaf59a309afd811db5001175 by Abseil Team <absl-team@google.com>:

Fix internal exception spec compatibility error

PiperOrigin-RevId: 303104081

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3290595dd866eecab3c7044e2e3ca0adb74f1bf5 by Gennadiy Rozental <rogeeff@google.com>:

Use FlagValue<T> to represent the value of a flag. Place it directly after
FlagImpl and use a computed offset refer to it.

The offset is computed based on the assumption that the `value_` data member
is placed directly after the impl_ data member in Flag<T>.

This change will allow us to migrate to `T`-specific storage in the generic case.

This change decreases the overhead for int flags by 32 bytes.

PiperOrigin-RevId: 303038099

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f2b37722cd7a6d3a60ef9713f0d2bbff56f3ddbf by Derek Mauro <dmauro@google.com>:

Minor correctness fix for an ABSL_HAVE_BUILTIN conditional

PiperOrigin-RevId: 302980666

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39c079a6141ae1c5728af8bf33a39c8aff9deb9f by Abseil Team <absl-team@google.com>:

Use ABSL_HARDENING_ASSERT in b-tree and SwissTable iterators.

PiperOrigin-RevId: 302970075

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9668a044e080c789df32bcaa1ffb5100831cd9fa by Benjamin Barenblat <bbaren@google.com>:

Correct `add_subdirectory` line in CMake googletest support

Commit bcefbdcdf6ad85046ccacee0aeffba5404d3e528 added support for building with CMake against a local googletest checkout, but I missed a line when constructing the diff. Change the `add_subdirectory` line to reference the correct directories.

PiperOrigin-RevId: 302947488

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0a3c10fabf80a43ca69ab8b1570030e55f2be741 by Andy Soffer <asoffer@google.com>:

Remove unused distribution format traits.

PiperOrigin-RevId: 302896176

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0478f2f6270e5ed64c0e28ec09556ca90b2d46a9 by Samuel Benzaquen <sbenza@google.com>:

Fix for CWG:2310.

PiperOrigin-RevId: 302734089

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3cb978dda5cae5905affdc0914dcc2d27671ed11 by Samuel Benzaquen <sbenza@google.com>:

Fix the Allocate/Deallocate functions to use the same underlying allocator type.

PiperOrigin-RevId: 302721804

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ae38d3984fb68b4e3ddc165fa8d5c24d5936be52 by Matthew Brown <matthewbr@google.com>:

Internal Change

PiperOrigin-RevId: 302717314

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7357cf7abd03cc60b6e82b5f28a8e34935c3b4dc by Andy Getzendanner <durandal@google.com>:

Fix typo: s/ABSL_HARDENED_ASSERT/ABSL_HARDENING_ASSERT/

PiperOrigin-RevId: 302532164
GitOrigin-RevId: 990253454819ce26ff1dda9ab4bbc145b61d01e4
Change-Id: Ie595a221c16e1e7e1255ad42e029b646c5f3e11d

2 files changed, 3 insertions, 51 deletions

diff --git a/absl/random/internal/distribution_caller.h b/absl/random/internal/distribution_caller.h
index 02603cf8..4e072444 100644
--- a/absl/random/internal/distribution_caller.h
+++ b/absl/random/internal/distribution_caller.h
@@ -33,20 +33,7 @@ struct DistributionCaller {
   // Call the provided distribution type. The parameters are expected
   // to be explicitly specified.
   // DistrT is the distribution type.
-  // FormatT is the formatter type:
-  //
-  // struct FormatT {
-  //   using result_type = distribution_t::result_type;
-  //   static std::string FormatCall(
-  //       const distribution_t& distr,
-  //       absl::Span<const result_type>);
-  //
-  //   static std::string FormatExpectation(
-  //       absl::string_view match_args,
-  //       absl::Span<const result_t> results);
-  // }
-  //
-  template <typename DistrT, typename FormatT, typename... Args>
+  template <typename DistrT, typename... Args>
   static typename DistrT::result_type Call(URBG* urbg, Args&&... args) {
     DistrT dist(std::forward<Args>(args)...);
     return dist(*urbg);
diff --git a/absl/random/internal/mocking_bit_gen_base.h b/absl/random/internal/mocking_bit_gen_base.h
index eeeae9d2..23ecaf6c 100644
--- a/absl/random/internal/mocking_bit_gen_base.h
+++ b/absl/random/internal/mocking_bit_gen_base.h
@@ -16,8 +16,6 @@
 #ifndef ABSL_RANDOM_INTERNAL_MOCKING_BIT_GEN_BASE_H_
 #define ABSL_RANDOM_INTERNAL_MOCKING_BIT_GEN_BASE_H_
 
-#include <atomic>
-#include <deque>
 #include <string>
 #include <typeinfo>
 
@@ -28,27 +26,6 @@ namespace absl {
 ABSL_NAMESPACE_BEGIN
 namespace random_internal {
 
-// MockingBitGenExpectationFormatter is invoked to format unsatisfied mocks
-// and remaining results into a description string.
-template <typename DistrT, typename FormatT>
-struct MockingBitGenExpectationFormatter {
-  std::string operator()(absl::string_view args) {
-    return absl::StrCat(FormatT::FunctionName(), "(", args, ")");
-  }
-};
-
-// MockingBitGenCallFormatter is invoked to format each distribution call
-// into a description string for the mock log.
-template <typename DistrT, typename FormatT>
-struct MockingBitGenCallFormatter {
-  std::string operator()(const DistrT& dist,
-                         const typename DistrT::result_type& result) {
-    return absl::StrCat(
-        FormatT::FunctionName(), "(", FormatT::FormatArgs(dist), ") => {",
-        FormatT::FormatResults(absl::MakeSpan(&result, 1)), "}");
-  }
-};
-
 class MockingBitGenBase {
   template <typename>
   friend struct DistributionCaller;
@@ -61,14 +38,9 @@ class MockingBitGenBase {
   static constexpr result_type(max)() { return (generator_type::max)(); }
   result_type operator()() { return gen_(); }
 
-  MockingBitGenBase() : gen_(), observed_call_log_() {}
   virtual ~MockingBitGenBase() = default;
 
  protected:
-  const std::deque<std::string>& observed_call_log() {
-    return observed_call_log_;
-  }
-
   // CallImpl is the type-erased virtual dispatch.
   // The type of dist is always distribution<T>,
   // The type of result is always distribution<T>::result_type.
@@ -81,10 +53,9 @@ class MockingBitGenBase {
   }
 
   // Call the generating distribution function.
-  // Invoked by DistributionCaller<>::Call<DistT, FormatT>.
+  // Invoked by DistributionCaller<>::Call<DistT>.
   // DistT is the distribution type.
-  // FormatT is the distribution formatter traits type.
-  template <typename DistrT, typename FormatT, typename... Args>
+  template <typename DistrT, typename... Args>
   typename DistrT::result_type Call(Args&&... args) {
     using distr_result_type = typename DistrT::result_type;
     using ArgTupleT = std::tuple<absl::decay_t<Args>...>;
@@ -100,17 +71,11 @@ class MockingBitGenBase {
       result = dist(gen_);
     }
 
-    // TODO(asoffer): Forwarding the args through means we no longer need to
-    // extract them from the from the distribution in formatter traits. We can
-    // just StrJoin them.
-    observed_call_log_.push_back(
-        MockingBitGenCallFormatter<DistrT, FormatT>{}(dist, result));
     return result;
   }
 
  private:
   generator_type gen_;
-  std::deque<std::string> observed_call_log_;
 };  // namespace random_internal
 
 }  // namespace random_internal