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authorGravatar Abseil Team <absl-team@google.com>2017-12-01 12:15:49 -0800
committerGravatar Xiaoyi Zhang <zhangxy988@gmail.com>2017-12-01 15:25:15 -0500
commit8b727aa7aba86ce396da8e4886e40ea3e4357e27 (patch)
treea5d22e038a49860ace2c09238c4cca6574198b10
parent579f2879acb6ad6e2935cc970399a1e52c1ee9eb (diff)
Changes imported from Abseil "staging" branch:
- 5d8235b05f4ea2b33a138712f463a30b6ae75719 Incorporate PR https://github.com/abseil/abseil-cpp/pull/... by Xiaoyi Zhang <zhangxy@google.com> - f2bc653acdaa983aa2765693476c17cd1142d59b Run the StrSplit WorksWithLargeStrings test in all configs. by Matt Armstrong <marmstrong@google.com> - 43aed1ea7dffcd656e1916c2d5637650fc3a8de3 Incorporate PR https://github.com/abseil/abseil-cpp/pull/... by Xiaoyi Zhang <zhangxy@google.com> - d58511d60904c7090e44638339ba63b97ca96f1a Add a new simple Mutex lifetime test, to be extended later. by Greg Falcon <gfalcon@google.com> - db5c86c186c09ad57963bcbd2b6182f62bce8ed0 Actually use the exception in TestCheckerAtCountdown by Jon Cohen <cohenjon@google.com> - 29c01a72b62d9a4b90f9bd935e3575adbafd85ed Use factories instead of explicitly passing pointers to T... by Jon Cohen <cohenjon@google.com> - 54d5526ee6ab7784992845f6e6e2c7d48ba008a5 Fix uint128 ostream operator and improve ostream test. by Alex Strelnikov <strel@google.com> - 4e49abe7e569cf6bd0eae95ce2b2fe2faa051fa2 Fix documentation: strings::PairFormatter -> absl::PairFo... by Derek Mauro <dmauro@google.com> - 4044297f0e1a8a6c6ae3f781a65080e0d57c6751 Cut the memory used by the StrSplit WorksWithLargeStrings... by Jorg Brown <jorg@google.com> GitOrigin-RevId: 5d8235b05f4ea2b33a138712f463a30b6ae75719 Change-Id: Ib6b6b0161c26e5326b53a126454754e33678eefc
-rw-r--r--absl/base/BUILD.bazel1
-rw-r--r--absl/base/exception_safety_testing_test.cc250
-rw-r--r--absl/base/internal/exception_safety_testing.h128
-rw-r--r--absl/numeric/BUILD.bazel1
-rw-r--r--absl/numeric/int128.cc5
-rw-r--r--absl/numeric/int128_test.cc73
-rw-r--r--absl/numeric/int128_test_unsigned_ostream_cases.inc880
-rw-r--r--absl/strings/str_join.h10
-rw-r--r--absl/strings/str_split_test.cc9
-rw-r--r--absl/synchronization/BUILD.bazel16
-rw-r--r--absl/synchronization/lifetime_test.cc95
11 files changed, 1203 insertions, 265 deletions
diff --git a/absl/base/BUILD.bazel b/absl/base/BUILD.bazel
index e5284633..743add7e 100644
--- a/absl/base/BUILD.bazel
+++ b/absl/base/BUILD.bazel
@@ -241,6 +241,7 @@ cc_library(
"//absl/memory",
"//absl/meta:type_traits",
"//absl/strings",
+ "//absl/types:optional",
"@com_google_googletest//:gtest",
],
)
diff --git a/absl/base/exception_safety_testing_test.cc b/absl/base/exception_safety_testing_test.cc
index 4931c886..20cbb435 100644
--- a/absl/base/exception_safety_testing_test.cc
+++ b/absl/base/exception_safety_testing_test.cc
@@ -384,70 +384,62 @@ struct CallOperator {
}
};
-struct FailsBasicGuarantee {
+struct NonNegative {
+ friend testing::AssertionResult AbslCheckInvariants(NonNegative* g) {
+ if (g->i >= 0) return testing::AssertionSuccess();
+ return testing::AssertionFailure()
+ << "i should be non-negative but is " << g->i;
+ }
+ bool operator==(const NonNegative& other) const { return i == other.i; }
+
+ int i;
+};
+
+template <typename T>
+struct DefaultFactory {
+ std::unique_ptr<T> operator()() const { return absl::make_unique<T>(); }
+};
+
+struct FailsBasicGuarantee : public NonNegative {
void operator()() {
--i;
ThrowingValue<> bomb;
++i;
}
-
- bool operator==(const FailsBasicGuarantee& other) const {
- return i == other.i;
- }
-
- friend testing::AssertionResult AbslCheckInvariants(
- const FailsBasicGuarantee& g) {
- if (g.i >= 0) return testing::AssertionSuccess();
- return testing::AssertionFailure()
- << "i should be non-negative but is " << g.i;
- }
-
- int i = 0;
};
TEST(ExceptionCheckTest, BasicGuaranteeFailure) {
- FailsBasicGuarantee g;
- EXPECT_FALSE(TestExceptionSafety(&g, CallOperator{}));
+ EXPECT_FALSE(TestExceptionSafety(DefaultFactory<FailsBasicGuarantee>(),
+ CallOperator{}));
}
-struct FollowsBasicGuarantee {
+struct FollowsBasicGuarantee : public NonNegative {
void operator()() {
++i;
ThrowingValue<> bomb;
}
-
- bool operator==(const FollowsBasicGuarantee& other) const {
- return i == other.i;
- }
-
- friend testing::AssertionResult AbslCheckInvariants(
- const FollowsBasicGuarantee& g) {
- if (g.i >= 0) return testing::AssertionSuccess();
- return testing::AssertionFailure()
- << "i should be non-negative but is " << g.i;
- }
-
- int i = 0;
};
TEST(ExceptionCheckTest, BasicGuarantee) {
- FollowsBasicGuarantee g;
- EXPECT_TRUE(TestExceptionSafety(&g, CallOperator{}));
+ EXPECT_TRUE(TestExceptionSafety(DefaultFactory<FollowsBasicGuarantee>(),
+ CallOperator{}));
}
TEST(ExceptionCheckTest, StrongGuaranteeFailure) {
{
- FailsBasicGuarantee g;
- EXPECT_FALSE(TestExceptionSafety(&g, CallOperator{}, StrongGuarantee(g)));
+ DefaultFactory<FailsBasicGuarantee> factory;
+ EXPECT_FALSE(
+ TestExceptionSafety(factory, CallOperator{}, StrongGuarantee(factory)));
}
{
- FollowsBasicGuarantee g;
- EXPECT_FALSE(TestExceptionSafety(&g, CallOperator{}, StrongGuarantee(g)));
+ DefaultFactory<FollowsBasicGuarantee> factory;
+ EXPECT_FALSE(
+ TestExceptionSafety(factory, CallOperator{}, StrongGuarantee(factory)));
}
}
-struct BasicGuaranteeWithExtraInvariants {
+struct BasicGuaranteeWithExtraInvariants : public NonNegative {
// After operator(), i is incremented. If operator() throws, i is set to 9999
void operator()() {
int old_i = i;
@@ -456,92 +448,94 @@ struct BasicGuaranteeWithExtraInvariants {
i = ++old_i;
}
- bool operator==(const FollowsBasicGuarantee& other) const {
- return i == other.i;
- }
-
- friend testing::AssertionResult AbslCheckInvariants(
- const BasicGuaranteeWithExtraInvariants& g) {
- if (g.i >= 0) return testing::AssertionSuccess();
- return testing::AssertionFailure()
- << "i should be non-negative but is " << g.i;
- }
-
- int i = 0;
static constexpr int kExceptionSentinel = 9999;
};
constexpr int BasicGuaranteeWithExtraInvariants::kExceptionSentinel;
TEST(ExceptionCheckTest, BasicGuaranteeWithInvariants) {
- {
- BasicGuaranteeWithExtraInvariants g;
- EXPECT_TRUE(TestExceptionSafety(&g, CallOperator{}));
- }
+ DefaultFactory<BasicGuaranteeWithExtraInvariants> factory;
- {
- BasicGuaranteeWithExtraInvariants g;
- EXPECT_TRUE(TestExceptionSafety(
- &g, CallOperator{}, [](const BasicGuaranteeWithExtraInvariants& w) {
- if (w.i == BasicGuaranteeWithExtraInvariants::kExceptionSentinel) {
- return testing::AssertionSuccess();
- }
- return testing::AssertionFailure()
- << "i should be "
- << BasicGuaranteeWithExtraInvariants::kExceptionSentinel
- << ", but is " << w.i;
- }));
- }
-}
+ EXPECT_TRUE(TestExceptionSafety(factory, CallOperator{}));
-struct FollowsStrongGuarantee {
+ EXPECT_TRUE(TestExceptionSafety(
+ factory, CallOperator{}, [](BasicGuaranteeWithExtraInvariants* w) {
+ if (w->i == BasicGuaranteeWithExtraInvariants::kExceptionSentinel) {
+ return testing::AssertionSuccess();
+ }
+ return testing::AssertionFailure()
+ << "i should be "
+ << BasicGuaranteeWithExtraInvariants::kExceptionSentinel
+ << ", but is " << w->i;
+ }));
+}
+
+struct FollowsStrongGuarantee : public NonNegative {
void operator()() { ThrowingValue<> bomb; }
+};
- bool operator==(const FollowsStrongGuarantee& other) const {
- return i == other.i;
- }
+TEST(ExceptionCheckTest, StrongGuarantee) {
+ DefaultFactory<FollowsStrongGuarantee> factory;
+ EXPECT_TRUE(TestExceptionSafety(factory, CallOperator{}));
+ EXPECT_TRUE(
+ TestExceptionSafety(factory, CallOperator{}, StrongGuarantee(factory)));
+}
- friend testing::AssertionResult AbslCheckInvariants(
- const FollowsStrongGuarantee& g) {
- if (g.i >= 0) return testing::AssertionSuccess();
- return testing::AssertionFailure()
- << "i should be non-negative but is " << g.i;
+struct HasReset : public NonNegative {
+ void operator()() {
+ i = -1;
+ ThrowingValue<> bomb;
+ i = 1;
}
- int i = 0;
+ void reset() { i = 0; }
+
+ friend bool AbslCheckInvariants(HasReset* h) {
+ h->reset();
+ return h->i == 0;
+ }
};
-TEST(ExceptionCheckTest, StrongGuarantee) {
- FollowsStrongGuarantee g;
- EXPECT_TRUE(TestExceptionSafety(&g, CallOperator{}));
- EXPECT_TRUE(TestExceptionSafety(&g, CallOperator{}, StrongGuarantee(g)));
+TEST(ExceptionCheckTest, ModifyingChecker) {
+ {
+ DefaultFactory<FollowsBasicGuarantee> factory;
+ EXPECT_FALSE(TestExceptionSafety(
+ factory, CallOperator{},
+ [](FollowsBasicGuarantee* g) {
+ g->i = 1000;
+ return true;
+ },
+ [](FollowsBasicGuarantee* g) { return g->i == 1000; }));
+ }
+ {
+ DefaultFactory<FollowsStrongGuarantee> factory;
+ EXPECT_TRUE(TestExceptionSafety(factory, CallOperator{},
+ [](FollowsStrongGuarantee* g) {
+ ++g->i;
+ return true;
+ },
+ StrongGuarantee(factory)));
+ }
+ {
+ DefaultFactory<HasReset> factory;
+ EXPECT_TRUE(TestExceptionSafety(factory, CallOperator{}));
+ }
}
-struct NonCopyable {
+struct NonCopyable : public NonNegative {
NonCopyable(const NonCopyable&) = delete;
- explicit NonCopyable(int ii) : i(ii) {}
+ NonCopyable() : NonNegative{0} {}
void operator()() { ThrowingValue<> bomb; }
-
- bool operator==(const NonCopyable& other) const { return i == other.i; }
-
- friend testing::AssertionResult AbslCheckInvariants(const NonCopyable& g) {
- if (g.i >= 0) return testing::AssertionSuccess();
- return testing::AssertionFailure()
- << "i should be non-negative but is " << g.i;
- }
-
- int i;
};
TEST(ExceptionCheckTest, NonCopyable) {
- NonCopyable g(0);
- EXPECT_TRUE(TestExceptionSafety(&g, CallOperator{}));
- EXPECT_TRUE(TestExceptionSafety(
- &g, CallOperator{},
- PointeeStrongGuarantee(absl::make_unique<NonCopyable>(g.i))));
+ DefaultFactory<NonCopyable> factory;
+ EXPECT_TRUE(TestExceptionSafety(factory, CallOperator{}));
+ EXPECT_TRUE(
+ TestExceptionSafety(factory, CallOperator{}, StrongGuarantee(factory)));
}
-struct NonEqualityComparable {
+struct NonEqualityComparable : public NonNegative {
void operator()() { ThrowingValue<> bomb; }
void ModifyOnThrow() {
@@ -550,71 +544,61 @@ struct NonEqualityComparable {
static_cast<void>(bomb);
--i;
}
-
- friend testing::AssertionResult AbslCheckInvariants(
- const NonEqualityComparable& g) {
- if (g.i >= 0) return testing::AssertionSuccess();
- return testing::AssertionFailure()
- << "i should be non-negative but is " << g.i;
- }
-
- int i = 0;
};
TEST(ExceptionCheckTest, NonEqualityComparable) {
- NonEqualityComparable g;
+ DefaultFactory<NonEqualityComparable> factory;
auto comp = [](const NonEqualityComparable& a,
const NonEqualityComparable& b) { return a.i == b.i; };
- EXPECT_TRUE(TestExceptionSafety(&g, CallOperator{}));
- EXPECT_TRUE(
- TestExceptionSafety(&g, CallOperator{}, absl::StrongGuarantee(g, comp)));
+ EXPECT_TRUE(TestExceptionSafety(factory, CallOperator{}));
+ EXPECT_TRUE(TestExceptionSafety(factory, CallOperator{},
+ absl::StrongGuarantee(factory, comp)));
EXPECT_FALSE(TestExceptionSafety(
- &g, [&](NonEqualityComparable* n) { n->ModifyOnThrow(); },
- absl::StrongGuarantee(g, comp)));
+ factory, [&](NonEqualityComparable* n) { n->ModifyOnThrow(); },
+ absl::StrongGuarantee(factory, comp)));
}
template <typename T>
-struct InstructionCounter {
+struct ExhaustivenessTester {
void operator()() {
- ++counter;
+ successes |= 1;
T b1;
static_cast<void>(b1);
- ++counter;
+ successes |= (1 << 1);
T b2;
static_cast<void>(b2);
- ++counter;
+ successes |= (1 << 2);
T b3;
static_cast<void>(b3);
- ++counter;
+ successes |= (1 << 3);
}
- bool operator==(const InstructionCounter<ThrowingValue<>>&) const {
+ bool operator==(const ExhaustivenessTester<ThrowingValue<>>&) const {
return true;
}
- friend testing::AssertionResult AbslCheckInvariants(
- const InstructionCounter&) {
+ friend testing::AssertionResult AbslCheckInvariants(ExhaustivenessTester*) {
return testing::AssertionSuccess();
}
- static int counter;
+ static unsigned char successes;
};
template <typename T>
-int InstructionCounter<T>::counter = 0;
+unsigned char ExhaustivenessTester<T>::successes = 0;
TEST(ExceptionCheckTest, Exhaustiveness) {
- InstructionCounter<int> int_factory;
- EXPECT_TRUE(TestExceptionSafety(&int_factory, CallOperator{}));
- EXPECT_EQ(InstructionCounter<int>::counter, 4);
+ DefaultFactory<ExhaustivenessTester<int>> int_factory;
+ EXPECT_TRUE(TestExceptionSafety(int_factory, CallOperator{}));
+ EXPECT_EQ(ExhaustivenessTester<int>::successes, 0xF);
- InstructionCounter<ThrowingValue<>> bomb_factory;
- EXPECT_TRUE(TestExceptionSafety(&bomb_factory, CallOperator{}));
- EXPECT_EQ(InstructionCounter<ThrowingValue<>>::counter, 10);
+ DefaultFactory<ExhaustivenessTester<ThrowingValue<>>> bomb_factory;
+ EXPECT_TRUE(TestExceptionSafety(bomb_factory, CallOperator{}));
+ EXPECT_EQ(ExhaustivenessTester<ThrowingValue<>>::successes, 0xF);
- InstructionCounter<ThrowingValue<>>::counter = 0;
- EXPECT_TRUE(TestExceptionSafety(&bomb_factory, CallOperator{},
+ ExhaustivenessTester<ThrowingValue<>>::successes = 0;
+ EXPECT_TRUE(TestExceptionSafety(bomb_factory, CallOperator{},
StrongGuarantee(bomb_factory)));
- EXPECT_EQ(InstructionCounter<ThrowingValue<>>::counter, 10);
+ EXPECT_EQ(ExhaustivenessTester<ThrowingValue<>>::successes, 0xF);
}
struct LeaksIfCtorThrows : private exceptions_internal::TrackedObject {
diff --git a/absl/base/internal/exception_safety_testing.h b/absl/base/internal/exception_safety_testing.h
index a0a70d91..05bcd0ab 100644
--- a/absl/base/internal/exception_safety_testing.h
+++ b/absl/base/internal/exception_safety_testing.h
@@ -18,6 +18,7 @@
#include "absl/meta/type_traits.h"
#include "absl/strings/string_view.h"
#include "absl/strings/substitute.h"
+#include "absl/types/optional.h"
namespace absl {
struct AllocInspector;
@@ -97,19 +98,50 @@ class TrackedObject {
friend struct ::absl::AllocInspector;
};
-template <typename T, typename... Checkers>
-testing::AssertionResult TestInvariants(const T& t, const TestException& e,
- int count,
- const Checkers&... checkers) {
- auto out = AbslCheckInvariants(t);
+template <typename Factory>
+using FactoryType = typename absl::result_of_t<Factory()>::element_type;
+
+// Returns an optional with the result of the check if op fails, or an empty
+// optional if op passes
+template <typename Factory, typename Op, typename Checker>
+absl::optional<testing::AssertionResult> TestCheckerAtCountdown(
+ Factory factory, const Op& op, int count, const Checker& check) {
+ exceptions_internal::countdown = count;
+ auto t_ptr = factory();
+ absl::optional<testing::AssertionResult> out;
+ try {
+ op(t_ptr.get());
+ } catch (const exceptions_internal::TestException& e) {
+ out.emplace(check(t_ptr.get()));
+ if (!*out) {
+ *out << " caused by exception thrown by " << e.what();
+ }
+ }
+ return out;
+}
+
+template <typename Factory, typename Op, typename Checker>
+int UpdateOut(Factory factory, const Op& op, int count, const Checker& checker,
+ testing::AssertionResult* out) {
+ if (*out) *out = *TestCheckerAtCountdown(factory, op, count, checker);
+ return 0;
+}
+
+// Returns an optional with the result of the check if op fails, or an empty
+// optional if op passes
+template <typename Factory, typename Op, typename... Checkers>
+absl::optional<testing::AssertionResult> TestAtCountdown(
+ Factory factory, const Op& op, int count, const Checkers&... checkers) {
// Don't bother with the checkers if the class invariants are already broken.
- bool dummy[] = {true,
- (out && (out = testing::AssertionResult(checkers(t))))...};
- static_cast<void>(dummy);
+ auto out = TestCheckerAtCountdown(
+ factory, op, count,
+ [](FactoryType<Factory>* t_ptr) { return AbslCheckInvariants(t_ptr); });
+ if (!out.has_value()) return out;
- return out ? out
- : out << " Caused by exception " << count << "thrown by "
- << e.what();
+ // Run each checker, short circuiting after the first failure
+ int dummy[] = {0, (UpdateOut(factory, op, count, checkers, &*out))...};
+ static_cast<void>(dummy);
+ return out;
}
template <typename T, typename EqualTo>
@@ -118,9 +150,9 @@ class StrongGuaranteeTester {
explicit StrongGuaranteeTester(std::unique_ptr<T> t_ptr, EqualTo eq) noexcept
: val_(std::move(t_ptr)), eq_(eq) {}
- testing::AssertionResult operator()(const T& other) const {
- return eq_(*val_, other) ? testing::AssertionSuccess()
- : testing::AssertionFailure() << "State changed";
+ testing::AssertionResult operator()(T* other) const {
+ return eq_(*val_, *other) ? testing::AssertionSuccess()
+ : testing::AssertionFailure() << "State changed";
}
private:
@@ -673,58 +705,52 @@ T TestThrowingCtor(Args&&... args) {
}
// Tests that performing operation Op on a T follows exception safety
-// guarantees. By default only tests the basic guarantee.
+// guarantees. By default only tests the basic guarantee. There must be a
+// function, AbslCheckInvariants(T*) which returns
+// anything convertible to bool and which makes sure the invariants of the type
+// are upheld. This is called before any of the checkers.
//
// Parameters:
-// * T: the type under test.
+// * TFactory: operator() returns a unique_ptr to the type under test (T). It
+// should always return pointers to values which compare equal.
// * FunctionFromTPtrToVoid: A functor exercising the function under test. It
// should take a T* and return void.
-// * Checkers: Any number of functions taking a const T& and returning
+// * Checkers: Any number of functions taking a T* and returning
// anything contextually convertible to bool. If a testing::AssertionResult
// is used then the error message is kept. These test invariants related to
// the operation. To test the strong guarantee, pass
-// absl::StrongGuarantee(...) as one of these arguments if T has operator==.
-// Some types for which the strong guarantee makes sense don't have operator==
-// (eg std::any). A function capturing *t or a T equal to it, taking a const
-// T&, and returning contextually-convertible-to-bool may be passed instead.
-template <typename T, typename FunctionFromTPtrToVoid, typename... Checkers>
-testing::AssertionResult TestExceptionSafety(T* t, FunctionFromTPtrToVoid&& op,
+// absl::StrongGuarantee(factory). A checker may freely modify the passed-in
+// T, for example to make sure the T can be set to a known state.
+template <typename TFactory, typename FunctionFromTPtrToVoid,
+ typename... Checkers>
+testing::AssertionResult TestExceptionSafety(TFactory factory,
+ FunctionFromTPtrToVoid&& op,
const Checkers&... checkers) {
- auto out = testing::AssertionSuccess();
for (int countdown = 0;; ++countdown) {
- exceptions_internal::countdown = countdown;
- try {
- op(t);
- break;
- } catch (const exceptions_internal::TestException& e) {
- out = exceptions_internal::TestInvariants(*t, e, countdown, checkers...);
- if (!out) return out;
+ auto out = exceptions_internal::TestAtCountdown(factory, op, countdown,
+ checkers...);
+ if (!out.has_value()) {
+ UnsetCountdown();
+ return testing::AssertionSuccess();
}
+ if (!*out) return *out;
}
- UnsetCountdown();
- return out;
}
-// Returns a functor to test for the strong exception-safety guarantee. If T is
-// copyable, use the const T& overload, otherwise pass a unique_ptr<T>.
-// Equality comparisons are made against the T provided and default to using
-// operator==. See the documentation for TestExceptionSafety if T doesn't have
-// operator== but the strong guarantee still makes sense for it.
+// Returns a functor to test for the strong exception-safety guarantee.
+// Equality comparisons are made against the T provided by the factory and
+// default to using operator==.
//
// Parameters:
-// * T: The type under test.
-template <typename T, typename EqualTo = std::equal_to<T>>
-exceptions_internal::StrongGuaranteeTester<T, EqualTo> StrongGuarantee(
- const T& t, EqualTo eq = EqualTo()) {
- return exceptions_internal::StrongGuaranteeTester<T, EqualTo>(
- absl::make_unique<T>(t), eq);
-}
-
-template <typename T, typename EqualTo = std::equal_to<T>>
-exceptions_internal::StrongGuaranteeTester<T, EqualTo> PointeeStrongGuarantee(
- std::unique_ptr<T> t_ptr, EqualTo eq = EqualTo()) {
- return exceptions_internal::StrongGuaranteeTester<T, EqualTo>(
- std::move(t_ptr), eq);
+// * TFactory: operator() returns a unique_ptr to the type under test. It
+// should always return pointers to values which compare equal.
+template <typename TFactory, typename EqualTo = std::equal_to<
+ exceptions_internal::FactoryType<TFactory>>>
+exceptions_internal::StrongGuaranteeTester<
+ exceptions_internal::FactoryType<TFactory>, EqualTo>
+StrongGuarantee(TFactory factory, EqualTo eq = EqualTo()) {
+ return exceptions_internal::StrongGuaranteeTester<
+ exceptions_internal::FactoryType<TFactory>, EqualTo>(factory(), eq);
}
} // namespace absl
diff --git a/absl/numeric/BUILD.bazel b/absl/numeric/BUILD.bazel
index c118d013..26d04774 100644
--- a/absl/numeric/BUILD.bazel
+++ b/absl/numeric/BUILD.bazel
@@ -28,6 +28,7 @@ cc_test(
size = "small",
srcs = [
"int128_test.cc",
+ "int128_test_unsigned_ostream_cases.inc",
],
copts = ABSL_TEST_COPTS,
deps = [
diff --git a/absl/numeric/int128.cc b/absl/numeric/int128.cc
index 5081def5..73a8f737 100644
--- a/absl/numeric/int128.cc
+++ b/absl/numeric/int128.cc
@@ -192,9 +192,8 @@ std::ostream& operator<<(std::ostream& o, const uint128& b) {
rep.append(width - rep.size(), o.fill());
} else if (adjustfield == std::ios::internal &&
(flags & std::ios::showbase) &&
- (flags & std::ios::basefield) != std::ios::dec) {
- size_t base_size = (flags & std::ios::basefield) == std::ios::hex ? 2 : 1;
- rep.insert(base_size, width - rep.size(), o.fill());
+ (flags & std::ios::basefield) == std::ios::hex && b != 0) {
+ rep.insert(2, width - rep.size(), o.fill());
} else {
rep.insert(0, width - rep.size(), o.fill());
}
diff --git a/absl/numeric/int128_test.cc b/absl/numeric/int128_test.cc
index 46d5546f..ce44cd4b 100644
--- a/absl/numeric/int128_test.cc
+++ b/absl/numeric/int128_test.cc
@@ -428,79 +428,18 @@ TEST(Uint128, ConstexprTest) {
}
TEST(Uint128, OStream) {
- struct {
+ struct StreamCase {
absl::uint128 val;
std::ios_base::fmtflags flags;
std::streamsize width;
char fill;
const char* rep;
- } cases[] = {
- // zero with different bases
- {absl::uint128(0), std::ios::dec, 0, '_', "0"},
- {absl::uint128(0), std::ios::oct, 0, '_', "0"},
- {absl::uint128(0), std::ios::hex, 0, '_', "0"},
- // crossover between lo_ and hi_
- {absl::MakeUint128(0, -1), std::ios::dec, 0, '_', "18446744073709551615"},
- {absl::MakeUint128(0, -1), std::ios::oct, 0, '_',
- "1777777777777777777777"},
- {absl::MakeUint128(0, -1), std::ios::hex, 0, '_', "ffffffffffffffff"},
- {absl::MakeUint128(1, 0), std::ios::dec, 0, '_', "18446744073709551616"},
- {absl::MakeUint128(1, 0), std::ios::oct, 0, '_',
- "2000000000000000000000"},
- {absl::MakeUint128(1, 0), std::ios::hex, 0, '_', "10000000000000000"},
- // just the top bit
- {absl::MakeUint128(0x8000000000000000, 0), std::ios::dec, 0, '_',
- "170141183460469231731687303715884105728"},
- {absl::MakeUint128(0x8000000000000000, 0), std::ios::oct, 0, '_',
- "2000000000000000000000000000000000000000000"},
- {absl::MakeUint128(0x8000000000000000, 0), std::ios::hex, 0, '_',
- "80000000000000000000000000000000"},
- // maximum absl::uint128 value
- {absl::MakeUint128(-1, -1), std::ios::dec, 0, '_',
- "340282366920938463463374607431768211455"},
- {absl::MakeUint128(-1, -1), std::ios::oct, 0, '_',
- "3777777777777777777777777777777777777777777"},
- {absl::MakeUint128(-1, -1), std::ios::hex, 0, '_',
- "ffffffffffffffffffffffffffffffff"},
- // uppercase
- {absl::MakeUint128(-1, -1), std::ios::hex | std::ios::uppercase, 0, '_',
- "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"},
- // showbase
- {absl::uint128(1), std::ios::dec | std::ios::showbase, 0, '_', "1"},
- {absl::uint128(1), std::ios::oct | std::ios::showbase, 0, '_', "01"},
- {absl::uint128(1), std::ios::hex | std::ios::showbase, 0, '_', "0x1"},
- // showbase does nothing on zero
- {absl::uint128(0), std::ios::dec | std::ios::showbase, 0, '_', "0"},
- {absl::uint128(0), std::ios::oct | std::ios::showbase, 0, '_', "0"},
- {absl::uint128(0), std::ios::hex | std::ios::showbase, 0, '_', "0"},
- // showpos does nothing on unsigned types
- {absl::uint128(1), std::ios::dec | std::ios::showpos, 0, '_', "1"},
- // right adjustment
- {absl::uint128(9), std::ios::dec, 6, '_', "_____9"},
- {absl::uint128(12345), std::ios::dec, 6, '_', "_12345"},
- {absl::uint128(31), std::ios::hex | std::ios::showbase, 6, '_', "__0x1f"},
- {absl::uint128(7), std::ios::oct | std::ios::showbase, 6, '_', "____07"},
- // left adjustment
- {absl::uint128(9), std::ios::dec | std::ios::left, 6, '_', "9_____"},
- {absl::uint128(12345), std::ios::dec | std::ios::left, 6, '_', "12345_"},
- {absl::uint128(31), std::ios::hex | std::ios::left | std::ios::showbase,
- 6, '_', "0x1f__"},
- {absl::uint128(7), std::ios::oct | std::ios::left | std::ios::showbase, 6,
- '_', "07____"},
- // internal adjustment
- {absl::uint128(123),
- std::ios::dec | std::ios::internal | std::ios::showbase, 6, '_',
- "___123"},
- {absl::uint128(31),
- std::ios::hex | std::ios::internal | std::ios::showbase, 6, '_',
- "0x__1f"},
- {absl::uint128(7),
- std::ios::oct | std::ios::internal | std::ios::showbase, 6, '_',
- "0____7"},
- {absl::uint128(34), std::ios::hex | std::ios::internal, 6, '_', "____22"},
- {absl::uint128(9), std::ios::oct | std::ios::internal, 6, '_', "____11"},
};
- for (const auto& test_case : cases) {
+
+ std::vector<StreamCase> cases = {
+#include "absl/numeric/int128_test_unsigned_ostream_cases.inc"
+ };
+ for (const StreamCase& test_case : cases) {
std::ostringstream os;
os.flags(test_case.flags);
os.width(test_case.width);
diff --git a/absl/numeric/int128_test_unsigned_ostream_cases.inc b/absl/numeric/int128_test_unsigned_ostream_cases.inc
new file mode 100644
index 00000000..7d2fc77f
--- /dev/null
+++ b/absl/numeric/int128_test_unsigned_ostream_cases.inc
@@ -0,0 +1,880 @@
+// A small set of cases created manually for values greater than 2^64.
+
+{absl::MakeUint128(1, 0), std::ios::dec, 0, '_', "18446744073709551616"},
+{absl::MakeUint128(1, 0), std::ios::oct, 0, '_', "2000000000000000000000"},
+{absl::MakeUint128(1, 0), std::ios::hex, 0, '_', "10000000000000000"},
+{absl::MakeUint128(0x8000000000000000, 0), std::ios::dec, 0, '_', "170141183460469231731687303715884105728"},
+{absl::MakeUint128(0x8000000000000000, 0), std::ios::oct, 0, '_', "2000000000000000000000000000000000000000000"},
+{absl::MakeUint128(0x8000000000000000, 0), std::ios::hex, 0, '_', "80000000000000000000000000000000"},
+{absl::MakeUint128(-1, -1), std::ios::dec, 0, '_', "340282366920938463463374607431768211455"},
+{absl::MakeUint128(-1, -1), std::ios::oct, 0, '_', "3777777777777777777777777777777777777777777"},
+{absl::MakeUint128(-1, -1), std::ios::hex, 0, '_', "ffffffffffffffffffffffffffffffff"},
+
+// An exhaustive set of formatting cases generated with select values that fit
+// into a uint64_t so they can be compared to what was output by the standard
+// implementation.
+
+{0, std::ios::dec | std::ios::left, 0, '_', "0"},
+{0, std::ios::dec | std::ios::left, 10, '_', "0_________"},
+{0, std::ios::dec | std::ios::left | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::left | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::dec | std::ios::left | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::dec | std::ios::left | std::ios::showbase, 10, '_', "0_________"},
+{0, std::ios::dec | std::ios::left | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::left | std::ios::showbase | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::dec | std::ios::left | std::ios::uppercase, 0, '_', "0"},
+{0, std::ios::dec | std::ios::left | std::ios::uppercase, 10, '_', "0_________"},
+{0, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showbase, 10, '_', "0_________"},
+{0, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::dec | std::ios::internal, 0, '_', "0"},
+{0, std::ios::dec | std::ios::internal, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::internal | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::internal | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::internal | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::dec | std::ios::internal | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::internal | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::internal | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::internal | std::ios::uppercase, 0, '_', "0"},
+{0, std::ios::dec | std::ios::internal | std::ios::uppercase, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::internal | std::ios::uppercase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::internal | std::ios::uppercase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::internal | std::ios::uppercase | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::dec | std::ios::internal | std::ios::uppercase | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::right, 0, '_', "0"},
+{0, std::ios::dec | std::ios::right, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::right | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::right | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::right | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::dec | std::ios::right | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::right | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::right | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::right | std::ios::uppercase, 0, '_', "0"},
+{0, std::ios::dec | std::ios::right | std::ios::uppercase, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::right | std::ios::uppercase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::right | std::ios::uppercase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::right | std::ios::uppercase | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::dec | std::ios::right | std::ios::uppercase | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::dec | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::dec | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::left, 0, '_', "0"},
+{0, std::ios::oct | std::ios::left, 10, '_', "0_________"},
+{0, std::ios::oct | std::ios::left | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::left | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::oct | std::ios::left | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::oct | std::ios::left | std::ios::showbase, 10, '_', "0_________"},
+{0, std::ios::oct | std::ios::left | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::left | std::ios::showbase | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::oct | std::ios::left | std::ios::uppercase, 0, '_', "0"},
+{0, std::ios::oct | std::ios::left | std::ios::uppercase, 10, '_', "0_________"},
+{0, std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showbase, 10, '_', "0_________"},
+{0, std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::oct | std::ios::internal, 0, '_', "0"},
+{0, std::ios::oct | std::ios::internal, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::internal | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::internal | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::internal | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::oct | std::ios::internal | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::internal | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::internal | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::internal | std::ios::uppercase, 0, '_', "0"},
+{0, std::ios::oct | std::ios::internal | std::ios::uppercase, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::right, 0, '_', "0"},
+{0, std::ios::oct | std::ios::right, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::right | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::right | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::right | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::oct | std::ios::right | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::right | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::right | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::right | std::ios::uppercase, 0, '_', "0"},
+{0, std::ios::oct | std::ios::right | std::ios::uppercase, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::left, 0, '_', "0"},
+{0, std::ios::hex | std::ios::left, 10, '_', "0_________"},
+{0, std::ios::hex | std::ios::left | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::left | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::hex | std::ios::left | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::hex | std::ios::left | std::ios::showbase, 10, '_', "0_________"},
+{0, std::ios::hex | std::ios::left | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::left | std::ios::showbase | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::hex | std::ios::left | std::ios::uppercase, 0, '_', "0"},
+{0, std::ios::hex | std::ios::left | std::ios::uppercase, 10, '_', "0_________"},
+{0, std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showbase, 10, '_', "0_________"},
+{0, std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "0_________"},
+{0, std::ios::hex | std::ios::internal, 0, '_', "0"},
+{0, std::ios::hex | std::ios::internal, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::internal | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::internal | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::internal | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::hex | std::ios::internal | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::internal | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::internal | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::internal | std::ios::uppercase, 0, '_', "0"},
+{0, std::ios::hex | std::ios::internal | std::ios::uppercase, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::right, 0, '_', "0"},
+{0, std::ios::hex | std::ios::right, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::right | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::right | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::right | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::hex | std::ios::right | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::right | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::right | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::right | std::ios::uppercase, 0, '_', "0"},
+{0, std::ios::hex | std::ios::right | std::ios::uppercase, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showpos, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showbase, 0, '_', "0"},
+{0, std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showbase, 10, '_', "_________0"},
+{0, std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0"},
+{0, std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "_________0"},
+{8, std::ios::dec | std::ios::left, 0, '_', "8"},
+{8, std::ios::dec | std::ios::left, 10, '_', "8_________"},
+{8, std::ios::dec | std::ios::left | std::ios::showpos, 0, '_', "8"},
+{8, std::ios::dec | std::ios::left | std::ios::showpos, 10, '_', "8_________"},
+{8, std::ios::dec | std::ios::left | std::ios::showbase, 0, '_', "8"},
+{8, std::ios::dec | std::ios::left | std::ios::showbase, 10, '_', "8_________"},
+{8, std::ios::dec | std::ios::left | std::ios::showbase | std::ios::showpos, 0, '_', "8"},
+{8, std::ios::dec | std::ios::left | std::ios::showbase | std::ios::showpos, 10, '_', "8_________"},
+{8, std::ios::dec | std::ios::left | std::ios::uppercase, 0, '_', "8"},
+{8, std::ios::dec | std::ios::left | std::ios::uppercase, 10, '_', "8_________"},
+{8, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showpos, 0, '_', "8"},
+{8, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showpos, 10, '_', "8_________"},
+{8, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showbase, 0, '_', "8"},
+{8, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showbase, 10, '_', "8_________"},
+{8, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "8"},
+{8, std::ios::dec | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "8_________"},
+{8, std::ios::dec | std::ios::internal, 0, '_', "8"},
+{8, std::ios::dec | std::ios::internal, 10, '_', "_________8"},
+{8, std::ios::dec | std::ios::internal | std::ios::showpos, 0, '_', "8"},
+{8, std::ios::dec | std::ios::internal | std::ios::showpos, 10, '_', "_________8"},
+{8, std::ios::dec | std::ios::internal | std::ios::showbase, 0, '_', "8"},
+{8, std::ios::dec | std::ios::internal | std::ios::showbase, 10, '_', "_________8"},
+{8, std::ios::dec | std::ios::internal | std::ios::showbase | std::ios::showpos, 0, '_', "8"},
+{8, std::ios::dec | std::ios::internal | std::ios::showbase | std::ios::showpos, 10, '_', "_________8"},
+{8, std::ios::dec | std::ios::internal | std::ios::uppercase, 0, '_', "8"},
+{8, std::ios::dec | std::ios::internal | std::ios::uppercase, 10, '_', "_________8"},
+{8, std::ios::dec | std::ios::internal | std::ios::uppercase | std::ios::showpos, 0, '_', "8"},
+{8, std::ios::dec | std::ios::internal | std::ios::uppercase | std::ios::showpos, 10, '_', "_________8"},
+{8, std::ios::dec | std::ios::internal | std::ios::uppercase | std::ios::showbase, 0, '_', "8"},
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+{8, std::ios::dec | std::ios::right | std::ios::uppercase, 10, '_', "_________8"},
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+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::showbase, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::showbase | std::ios::showpos, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::showbase | std::ios::showpos, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::uppercase, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::uppercase, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showpos, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showpos, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showbase, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showbase, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::showpos, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::showpos, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::showbase, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::showbase, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::showbase | std::ios::showpos, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::showbase | std::ios::showpos, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::uppercase, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::uppercase, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showpos, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showpos, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showbase, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showbase, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::showpos, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::showpos, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::showbase, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::showbase, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::showbase | std::ios::showpos, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::showbase | std::ios::showpos, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::uppercase, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::uppercase, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showpos, 0, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showpos, 10, '_', "1777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showbase, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showbase, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::oct | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "01777777777777777777777"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left, 0, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left, 10, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::showpos, 0, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::showpos, 10, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::showbase, 0, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::showbase, 10, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::showbase | std::ios::showpos, 0, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::showbase | std::ios::showpos, 10, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::uppercase, 0, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::uppercase, 10, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showpos, 0, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showpos, 10, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showbase, 0, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showbase, 10, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::left | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal, 0, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal, 10, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::showpos, 0, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::showpos, 10, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::showbase, 0, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::showbase, 10, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::showbase | std::ios::showpos, 0, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::showbase | std::ios::showpos, 10, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::uppercase, 0, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::uppercase, 10, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showpos, 0, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showpos, 10, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showbase, 0, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showbase, 10, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::internal | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right, 0, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right, 10, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::showpos, 0, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::showpos, 10, '_', "ffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::showbase, 0, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::showbase, 10, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::showbase | std::ios::showpos, 0, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::showbase | std::ios::showpos, 10, '_', "0xffffffffffffffff"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::uppercase, 0, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::uppercase, 10, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showpos, 0, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showpos, 10, '_', "FFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showbase, 0, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showbase, 10, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 0, '_', "0XFFFFFFFFFFFFFFFF"},
+{std::numeric_limits<uint64_t>::max(), std::ios::hex | std::ios::right | std::ios::uppercase | std::ios::showbase | std::ios::showpos, 10, '_', "0XFFFFFFFFFFFFFFFF"},
diff --git a/absl/strings/str_join.h b/absl/strings/str_join.h
index 82a3cac2..47337490 100644
--- a/absl/strings/str_join.h
+++ b/absl/strings/str_join.h
@@ -208,11 +208,11 @@ DereferenceFormatter() {
// // Joins a `std::map`, with each key-value pair separated by an equals
// // sign. This pattern would also work with, say, a
// // `std::vector<std::pair<>>`.
-// std::map<std::string, int> m = {
-// std::make_pair("a", 1),
-// std::make_pair("b", 2),
-// std::make_pair("c", 3)};
-// std::string s = absl::StrJoin(m, ",", strings::PairFormatter("="));
+// std::map<std::string, int> m = {
+// std::make_pair("a", 1),
+// std::make_pair("b", 2),
+// std::make_pair("c", 3)};
+// std::string s = absl::StrJoin(m, ",", absl::PairFormatter("="));
// EXPECT_EQ("a=1,b=2,c=3", s);
//
// Example 7:
diff --git a/absl/strings/str_split_test.cc b/absl/strings/str_split_test.cc
index 22a68d0f..9c79d7dc 100644
--- a/absl/strings/str_split_test.cc
+++ b/absl/strings/str_split_test.cc
@@ -857,12 +857,10 @@ TEST(Delimiter, ByLength) {
EXPECT_FALSE(IsFoundAt("abcd", four_char_delim, 0));
}
-// Allocates too much memory for TSan and MSan.
-#if !defined(THREAD_SANITIZER) && !defined(MEMORY_SANITIZER)
TEST(Split, WorksWithLargeStrings) {
- if (sizeof(size_t) > 4 && !RunningOnValgrind()) {
- std::string s(1ULL << 31, 'x');
- s.push_back('-'); // 2G + 1 byte
+ if (sizeof(size_t) > 4) {
+ std::string s((uint32_t{1} << 31) + 1, 'x'); // 2G + 1 byte
+ s.back() = '-';
std::vector<absl::string_view> v = absl::StrSplit(s, '-');
EXPECT_EQ(2, v.size());
// The first element will contain 2G of 'x's.
@@ -873,7 +871,6 @@ TEST(Split, WorksWithLargeStrings) {
EXPECT_EQ("", v[1]);
}
}
-#endif // THREAD_SANITIZER
TEST(SplitInternalTest, TypeTraits) {
EXPECT_FALSE(absl::strings_internal::HasMappedType<int>::value);
diff --git a/absl/synchronization/BUILD.bazel b/absl/synchronization/BUILD.bazel
index 4faf62de..5e190c55 100644
--- a/absl/synchronization/BUILD.bazel
+++ b/absl/synchronization/BUILD.bazel
@@ -190,3 +190,19 @@ cc_test(
"@com_google_googletest//:gtest_main",
],
)
+
+cc_test(
+ name = "lifetime_test",
+ srcs = [
+ "lifetime_test.cc",
+ ],
+ copts = ABSL_TEST_COPTS,
+ linkopts = select({
+ "//absl:windows": [],
+ "//conditions:default": ["-pthread"],
+ }),
+ deps = [
+ ":synchronization",
+ "//absl/base",
+ ],
+)
diff --git a/absl/synchronization/lifetime_test.cc b/absl/synchronization/lifetime_test.cc
new file mode 100644
index 00000000..6aea60e1
--- /dev/null
+++ b/absl/synchronization/lifetime_test.cc
@@ -0,0 +1,95 @@
+// Copyright 2017 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <cstdlib>
+#include <thread> // NOLINT(build/c++11), Abseil test
+#include <type_traits>
+
+#include "absl/base/attributes.h"
+#include "absl/base/internal/raw_logging.h"
+#include "absl/synchronization/mutex.h"
+#include "absl/synchronization/notification.h"
+
+namespace {
+
+// A two-threaded test which checks that Mutex, CondVar, and Notification have
+// correct basic functionality. The intent is to establish that they
+// function correctly in various phases of construction and destruction.
+//
+// Thread one acquires a lock on 'mutex', wakes thread two via 'notification',
+// then waits for 'state' to be set, as signalled by 'condvar'.
+//
+// Thread two waits on 'notification', then sets 'state' inside the 'mutex',
+// signalling the change via 'condvar'.
+//
+// These tests use ABSL_RAW_CHECK to validate invariants, rather than EXPECT or
+// ASSERT from gUnit, because we need to invoke them during global destructors,
+// when gUnit teardown would have already begun.
+void ThreadOne(absl::Mutex* mutex, absl::CondVar* condvar,
+ absl::Notification* notification, bool* state) {
+ // Test that the notification is in a valid initial state.
+ ABSL_RAW_CHECK(!notification->HasBeenNotified(), "invalid Notification");
+ ABSL_RAW_CHECK(*state == false, "*state not initialized");
+
+ {
+ absl::MutexLock lock(mutex);
+
+ notification->Notify();
+ ABSL_RAW_CHECK(notification->HasBeenNotified(), "invalid Notification");
+
+ while (*state == false) {
+ condvar->Wait(mutex);
+ }
+ }
+}
+
+void ThreadTwo(absl::Mutex* mutex, absl::CondVar* condvar,
+ absl::Notification* notification, bool* state) {
+ ABSL_RAW_CHECK(*state == false, "*state not initialized");
+
+ // Wake thread one
+ notification->WaitForNotification();
+ ABSL_RAW_CHECK(notification->HasBeenNotified(), "invalid Notification");
+ {
+ absl::MutexLock lock(mutex);
+ *state = true;
+ condvar->Signal();
+ }
+}
+
+// Launch thread 1 and thread 2, and block on their completion.
+void RunTests(absl::Mutex* mutex, absl::CondVar* condvar,
+ absl::Notification* notification) {
+ bool state = false;
+ std::thread thread_one(ThreadOne, mutex, condvar, notification, &state);
+ std::thread thread_two(ThreadTwo, mutex, condvar, notification, &state);
+ thread_one.join();
+ thread_two.join();
+}
+
+void TestLocals() {
+ absl::Mutex mutex;
+ absl::CondVar condvar;
+ absl::Notification notification;
+ RunTests(&mutex, &condvar, &notification);
+}
+
+} // namespace
+
+int main() {
+ TestLocals();
+ // Explicitly call exit(0) here, to make it clear that we intend for the
+ // above global object destructors to run.
+ std::exit(0);
+}