summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--absl/base/exception_safety_testing_test.cc4
-rw-r--r--absl/meta/type_traits.h23
-rw-r--r--absl/meta/type_traits_test.cc76
-rw-r--r--absl/strings/numbers.h2
-rw-r--r--absl/strings/string_view.h2
-rw-r--r--absl/types/internal/variant.h8
-rw-r--r--absl/types/optional.h4
-rw-r--r--absl/types/optional_test.cc29
-rw-r--r--absl/types/variant_test.cc10
9 files changed, 126 insertions, 32 deletions
diff --git a/absl/base/exception_safety_testing_test.cc b/absl/base/exception_safety_testing_test.cc
index 97c8d6f8..724c0ad5 100644
--- a/absl/base/exception_safety_testing_test.cc
+++ b/absl/base/exception_safety_testing_test.cc
@@ -931,8 +931,8 @@ TEST(ThrowingValueTraitsTest, RelationalOperators) {
}
TEST(ThrowingAllocatorTraitsTest, Assignablility) {
- EXPECT_TRUE(std::is_move_assignable<ThrowingAllocator<int>>::value);
- EXPECT_TRUE(std::is_copy_assignable<ThrowingAllocator<int>>::value);
+ EXPECT_TRUE(absl::is_move_assignable<ThrowingAllocator<int>>::value);
+ EXPECT_TRUE(absl::is_copy_assignable<ThrowingAllocator<int>>::value);
EXPECT_TRUE(std::is_nothrow_move_assignable<ThrowingAllocator<int>>::value);
EXPECT_TRUE(std::is_nothrow_copy_assignable<ThrowingAllocator<int>>::value);
}
diff --git a/absl/meta/type_traits.h b/absl/meta/type_traits.h
index 457b8908..23ebd6ed 100644
--- a/absl/meta/type_traits.h
+++ b/absl/meta/type_traits.h
@@ -105,8 +105,25 @@ template <class To, template <class...> class Op, class... Args>
struct is_detected_convertible
: is_detected_convertible_impl<void, To, Op, Args...>::type {};
+template <typename T>
+using IsCopyAssignableImpl =
+ decltype(std::declval<T&>() = std::declval<const T&>());
+
+template <typename T>
+using IsMoveAssignableImpl = decltype(std::declval<T&>() = std::declval<T&&>());
+
} // namespace type_traits_internal
+template <typename T>
+struct is_copy_assignable : type_traits_internal::is_detected<
+ type_traits_internal::IsCopyAssignableImpl, T> {
+};
+
+template <typename T>
+struct is_move_assignable : type_traits_internal::is_detected<
+ type_traits_internal::IsMoveAssignableImpl, T> {
+};
+
// void_t()
//
// Ignores the type of any its arguments and returns `void`. In general, this
@@ -309,7 +326,7 @@ template <typename T>
struct is_trivially_copy_assignable
: std::integral_constant<
bool, __has_trivial_assign(typename std::remove_reference<T>::type) &&
- std::is_copy_assignable<T>::value> {
+ absl::is_copy_assignable<T>::value> {
#ifdef ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE
private:
static constexpr bool compliant =
@@ -409,11 +426,11 @@ struct IsHashEnabled
: absl::conjunction<std::is_default_constructible<std::hash<Key>>,
std::is_copy_constructible<std::hash<Key>>,
std::is_destructible<std::hash<Key>>,
- std::is_copy_assignable<std::hash<Key>>,
+ absl::is_copy_assignable<std::hash<Key>>,
IsHashable<Key>> {};
+
} // namespace type_traits_internal
} // namespace absl
-
#endif // ABSL_META_TYPE_TRAITS_H_
diff --git a/absl/meta/type_traits_test.cc b/absl/meta/type_traits_test.cc
index 81b4bd32..f51f5ded 100644
--- a/absl/meta/type_traits_test.cc
+++ b/absl/meta/type_traits_test.cc
@@ -877,4 +877,80 @@ TEST(TypeTraitsTest, TestResultOf) {
EXPECT_EQ(TypeEnum::D, GetTypeExt(Wrap<TypeD>()));
}
+template <typename T>
+bool TestCopyAssign() {
+ return absl::is_copy_assignable<T>::value ==
+ std::is_copy_assignable<T>::value;
+}
+
+TEST(TypeTraitsTest, IsCopyAssignable) {
+ EXPECT_TRUE(TestCopyAssign<int>());
+ EXPECT_TRUE(TestCopyAssign<int&>());
+ EXPECT_TRUE(TestCopyAssign<int&&>());
+
+ struct S {};
+ EXPECT_TRUE(TestCopyAssign<S>());
+ EXPECT_TRUE(TestCopyAssign<S&>());
+ EXPECT_TRUE(TestCopyAssign<S&&>());
+
+ class C {
+ public:
+ explicit C(C* c) : c_(c) {}
+ ~C() { delete c_; }
+
+ private:
+ C* c_;
+ };
+ EXPECT_TRUE(TestCopyAssign<C>());
+ EXPECT_TRUE(TestCopyAssign<C&>());
+ EXPECT_TRUE(TestCopyAssign<C&&>());
+
+ // Reason for ifndef: add_lvalue_reference<T> in libc++ breaks for these cases
+#ifndef _LIBCPP_VERSION
+ EXPECT_TRUE(TestCopyAssign<int()>());
+ EXPECT_TRUE(TestCopyAssign<int(int) const>());
+ EXPECT_TRUE(TestCopyAssign<int(...) volatile&>());
+ EXPECT_TRUE(TestCopyAssign<int(int, ...) const volatile&&>());
+#endif // _LIBCPP_VERSION
+}
+
+template <typename T>
+bool TestMoveAssign() {
+ return absl::is_move_assignable<T>::value ==
+ std::is_move_assignable<T>::value;
+}
+
+TEST(TypeTraitsTest, IsMoveAssignable) {
+ EXPECT_TRUE(TestMoveAssign<int>());
+ EXPECT_TRUE(TestMoveAssign<int&>());
+ EXPECT_TRUE(TestMoveAssign<int&&>());
+
+ struct S {};
+ EXPECT_TRUE(TestMoveAssign<S>());
+ EXPECT_TRUE(TestMoveAssign<S&>());
+ EXPECT_TRUE(TestMoveAssign<S&&>());
+
+ class C {
+ public:
+ explicit C(C* c) : c_(c) {}
+ ~C() { delete c_; }
+ void operator=(const C&) = delete;
+ void operator=(C&&) = delete;
+
+ private:
+ C* c_;
+ };
+ EXPECT_TRUE(TestMoveAssign<C>());
+ EXPECT_TRUE(TestMoveAssign<C&>());
+ EXPECT_TRUE(TestMoveAssign<C&&>());
+
+ // Reason for ifndef: add_lvalue_reference<T> in libc++ breaks for these cases
+#ifndef _LIBCPP_VERSION
+ EXPECT_TRUE(TestMoveAssign<int()>());
+ EXPECT_TRUE(TestMoveAssign<int(int) const>());
+ EXPECT_TRUE(TestMoveAssign<int(...) volatile&>());
+ EXPECT_TRUE(TestMoveAssign<int(int, ...) const volatile&&>());
+#endif // _LIBCPP_VERSION
+}
+
} // namespace
diff --git a/absl/strings/numbers.h b/absl/strings/numbers.h
index cf3c5972..fbed273e 100644
--- a/absl/strings/numbers.h
+++ b/absl/strings/numbers.h
@@ -44,7 +44,7 @@ namespace absl {
// Converts the given std::string into an integer value, returning `true` if
// successful. The std::string must reflect a base-10 integer (optionally followed or
// preceded by ASCII whitespace) whose value falls within the range of the
-// integer type,
+// integer type.
template <typename int_type>
ABSL_MUST_USE_RESULT bool SimpleAtoi(absl::string_view s, int_type* out);
diff --git a/absl/strings/string_view.h b/absl/strings/string_view.h
index a7f91992..1537a3f8 100644
--- a/absl/strings/string_view.h
+++ b/absl/strings/string_view.h
@@ -141,7 +141,7 @@ namespace absl {
// All empty `string_view` objects whether null or not, are equal:
//
// absl::string_view() == absl::string_view("", 0)
-// absl::string_view(nullptr, 0) == absl:: string_view("abcdef"+6, 0)
+// absl::string_view(nullptr, 0) == absl::string_view("abcdef"+6, 0)
class string_view {
public:
using traits_type = std::char_traits<char>;
diff --git a/absl/types/internal/variant.h b/absl/types/internal/variant.h
index 7708e67c..28ae1a5a 100644
--- a/absl/types/internal/variant.h
+++ b/absl/types/internal/variant.h
@@ -1227,23 +1227,23 @@ using VariantCopyBase = absl::conditional_t<
// Base that is dependent on whether or not the move-assign can be trivial.
template <class... T>
using VariantMoveAssignBase = absl::conditional_t<
- absl::disjunction<absl::conjunction<std::is_move_assignable<Union<T...>>,
+ absl::disjunction<absl::conjunction<absl::is_move_assignable<Union<T...>>,
std::is_move_constructible<Union<T...>>,
std::is_destructible<Union<T...>>>,
absl::negation<absl::conjunction<
std::is_move_constructible<T>...,
- std::is_move_assignable<T>...>>>::value,
+ absl::is_move_assignable<T>...>>>::value,
VariantCopyBase<T...>, VariantMoveAssignBaseNontrivial<T...>>;
// Base that is dependent on whether or not the copy-assign can be trivial.
template <class... T>
using VariantCopyAssignBase = absl::conditional_t<
- absl::disjunction<absl::conjunction<std::is_copy_assignable<Union<T...>>,
+ absl::disjunction<absl::conjunction<absl::is_copy_assignable<Union<T...>>,
std::is_copy_constructible<Union<T...>>,
std::is_destructible<Union<T...>>>,
absl::negation<absl::conjunction<
std::is_copy_constructible<T>...,
- std::is_copy_assignable<T>...>>>::value,
+ absl::is_copy_assignable<T>...>>>::value,
VariantMoveAssignBase<T...>, VariantCopyAssignBaseNontrivial<T...>>;
template <class... T>
diff --git a/absl/types/optional.h b/absl/types/optional.h
index c837cdde..79475e3e 100644
--- a/absl/types/optional.h
+++ b/absl/types/optional.h
@@ -411,10 +411,10 @@ constexpr copy_traits get_ctor_copy_traits() {
template <typename T>
constexpr copy_traits get_assign_copy_traits() {
- return std::is_copy_assignable<T>::value &&
+ return absl::is_copy_assignable<T>::value &&
std::is_copy_constructible<T>::value
? copy_traits::copyable
- : std::is_move_assignable<T>::value &&
+ : absl::is_move_assignable<T>::value &&
std::is_move_constructible<T>::value
? copy_traits::movable
: copy_traits::non_movable;
diff --git a/absl/types/optional_test.cc b/absl/types/optional_test.cc
index 179bfd66..d90db9f8 100644
--- a/absl/types/optional_test.cc
+++ b/absl/types/optional_test.cc
@@ -607,11 +607,12 @@ TEST(optionalTest, CopyAssignment) {
opt2_to_empty = empty;
EXPECT_FALSE(opt2_to_empty);
- EXPECT_FALSE(std::is_copy_assignable<absl::optional<const int>>::value);
- EXPECT_TRUE(std::is_copy_assignable<absl::optional<Copyable>>::value);
- EXPECT_FALSE(std::is_copy_assignable<absl::optional<MoveableThrow>>::value);
- EXPECT_FALSE(std::is_copy_assignable<absl::optional<MoveableNoThrow>>::value);
- EXPECT_FALSE(std::is_copy_assignable<absl::optional<NonMovable>>::value);
+ EXPECT_FALSE(absl::is_copy_assignable<absl::optional<const int>>::value);
+ EXPECT_TRUE(absl::is_copy_assignable<absl::optional<Copyable>>::value);
+ EXPECT_FALSE(absl::is_copy_assignable<absl::optional<MoveableThrow>>::value);
+ EXPECT_FALSE(
+ absl::is_copy_assignable<absl::optional<MoveableNoThrow>>::value);
+ EXPECT_FALSE(absl::is_copy_assignable<absl::optional<NonMovable>>::value);
EXPECT_TRUE(absl::is_trivially_copy_assignable<int>::value);
EXPECT_TRUE(absl::is_trivially_copy_assignable<volatile int>::value);
@@ -625,9 +626,9 @@ TEST(optionalTest, CopyAssignment) {
};
EXPECT_TRUE(absl::is_trivially_copy_assignable<Trivial>::value);
- EXPECT_FALSE(std::is_copy_assignable<const Trivial>::value);
- EXPECT_FALSE(std::is_copy_assignable<volatile Trivial>::value);
- EXPECT_TRUE(std::is_copy_assignable<NonTrivial>::value);
+ EXPECT_FALSE(absl::is_copy_assignable<const Trivial>::value);
+ EXPECT_FALSE(absl::is_copy_assignable<volatile Trivial>::value);
+ EXPECT_TRUE(absl::is_copy_assignable<NonTrivial>::value);
EXPECT_FALSE(absl::is_trivially_copy_assignable<NonTrivial>::value);
// std::optional doesn't support volatile nontrivial types.
@@ -695,11 +696,11 @@ TEST(optionalTest, MoveAssignment) {
EXPECT_EQ(1, listener.volatile_move_assign);
}
#endif // ABSL_HAVE_STD_OPTIONAL
- EXPECT_FALSE(std::is_move_assignable<absl::optional<const int>>::value);
- EXPECT_TRUE(std::is_move_assignable<absl::optional<Copyable>>::value);
- EXPECT_TRUE(std::is_move_assignable<absl::optional<MoveableThrow>>::value);
- EXPECT_TRUE(std::is_move_assignable<absl::optional<MoveableNoThrow>>::value);
- EXPECT_FALSE(std::is_move_assignable<absl::optional<NonMovable>>::value);
+ EXPECT_FALSE(absl::is_move_assignable<absl::optional<const int>>::value);
+ EXPECT_TRUE(absl::is_move_assignable<absl::optional<Copyable>>::value);
+ EXPECT_TRUE(absl::is_move_assignable<absl::optional<MoveableThrow>>::value);
+ EXPECT_TRUE(absl::is_move_assignable<absl::optional<MoveableNoThrow>>::value);
+ EXPECT_FALSE(absl::is_move_assignable<absl::optional<NonMovable>>::value);
EXPECT_FALSE(
std::is_nothrow_move_assignable<absl::optional<MoveableThrow>>::value);
@@ -1619,7 +1620,7 @@ TEST(optionalTest, AssignmentConstraints) {
EXPECT_TRUE(
(std::is_assignable<absl::optional<AnyLike>&, const AnyLike&>::value));
EXPECT_TRUE(std::is_move_assignable<absl::optional<AnyLike>>::value);
- EXPECT_TRUE(std::is_copy_assignable<absl::optional<AnyLike>>::value);
+ EXPECT_TRUE(absl::is_copy_assignable<absl::optional<AnyLike>>::value);
}
} // namespace
diff --git a/absl/types/variant_test.cc b/absl/types/variant_test.cc
index 262bd944..bfb8bd7a 100644
--- a/absl/types/variant_test.cc
+++ b/absl/types/variant_test.cc
@@ -403,7 +403,7 @@ struct is_trivially_move_constructible
template <class T>
struct is_trivially_move_assignable
- : std::is_move_assignable<SingleUnion<T>>::type {};
+ : absl::is_move_assignable<SingleUnion<T>>::type {};
TEST(VariantTest, NothrowMoveConstructible) {
// Verify that variant is nothrow move constructible iff its template
@@ -2439,14 +2439,14 @@ TEST(VariantTest, TestMoveConversionViaConvertVariantTo) {
TEST(VariantTest, TestCopyAndMoveTypeTraits) {
EXPECT_TRUE(std::is_copy_constructible<variant<std::string>>::value);
- EXPECT_TRUE(std::is_copy_assignable<variant<std::string>>::value);
+ EXPECT_TRUE(absl::is_copy_assignable<variant<std::string>>::value);
EXPECT_TRUE(std::is_move_constructible<variant<std::string>>::value);
- EXPECT_TRUE(std::is_move_assignable<variant<std::string>>::value);
+ EXPECT_TRUE(absl::is_move_assignable<variant<std::string>>::value);
EXPECT_TRUE(std::is_move_constructible<variant<std::unique_ptr<int>>>::value);
- EXPECT_TRUE(std::is_move_assignable<variant<std::unique_ptr<int>>>::value);
+ EXPECT_TRUE(absl::is_move_assignable<variant<std::unique_ptr<int>>>::value);
EXPECT_FALSE(
std::is_copy_constructible<variant<std::unique_ptr<int>>>::value);
- EXPECT_FALSE(std::is_copy_assignable<variant<std::unique_ptr<int>>>::value);
+ EXPECT_FALSE(absl::is_copy_assignable<variant<std::unique_ptr<int>>>::value);
EXPECT_FALSE(
absl::is_trivially_copy_constructible<variant<std::string>>::value);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-26 03:18:30 +0000