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Export of internal Abseil changes.

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5dc8d7504b7c11710b19365a6582c288c8992366 by Derek Mauro <dmauro@google.com>:

Fix constexpr Span::last under MSVC and add Span constexpr tests.

PiperOrigin-RevId: 237515952

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5ea8c146e653bbc49ff7e698699478242df7de35 by Derek Mauro <dmauro@google.com>:

Implement Span::first and Span::last from C++20.
https://github.com/abseil/abseil-cpp/pull/274

PiperOrigin-RevId: 237494399

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08db3417f1d8fe4556255d57a2f0df51b09bdd9a by Derek Mauro <dmauro@google.com>:

HTTPS in more URLs.

PiperOrigin-RevId: 237486823

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83ec63a7f8e47b62af619546f9f7b3bf72e74e86 by Derek Mauro <dmauro@google.com>:

Changed HTTP URLs to HTTPS where possible.
https://github.com/abseil/abseil-cpp/pull/270

PiperOrigin-RevId: 237445310

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220bf279c14cb31efa239500d1a70e0ac0c32e3c by Abseil Team <absl-team@google.com>:

Support parsing decltype(nullptr) as a type.

PiperOrigin-RevId: 237336739

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ced234bbe78f5d495c3f6f6a9c2e0a95f7c080a5 by Gennadiy Rozental <rogeeff@google.com>:

Introduce internal interface for setting environment variable value in scope

PiperOrigin-RevId: 237275806

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1f1acb4e294af24d9f7598e85163d5e1d9958ae9 by Samuel Benzaquen <sbenza@google.com>:

Avoid using aliases in the SFINAE expressions to make it more compatible with MSVC.
Turn on the tests in MSVC.

PiperOrigin-RevId: 237261456

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06cf7de6250a0572ef90fa1176f742ca0451ce71 by Derek Mauro <dmauro@google.com>:

Fix unused variable warning.

PiperOrigin-RevId: 237108006
GitOrigin-RevId: 5dc8d7504b7c11710b19365a6582c288c8992366
Change-Id: Ife5182c80942945c4e8700844c8febb482d6ad82
This commit is contained in:
Abseil Team 2019-03-08 14:06:50 -08:00 • committed by Derek Mauro
parent c1cecb25a9
commit 88a152ae74
17 changed files with 371 additions and 141 deletions
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22
absl/hash/hash_test.cc
View file

@ -165,9 +165,6 @@ TEST(HashValueTest, PointerAlignment) {
}
}
// TODO(EricWF): MSVC 15 has a bug that causes it to incorrectly evaluate the
// SFINAE in internal/hash.h, causing this test to fail.
#if !defined(_MSC_VER)
TEST(HashValueTest, PairAndTuple) {
EXPECT_TRUE((is_hashable<std::pair<int, int>>::value));
EXPECT_TRUE((is_hashable<std::pair<const int&, const int&>>::value));
@ -196,7 +193,6 @@ TEST(HashValueTest, PairAndTuple) {
std::forward_as_tuple(42, 0, 0), std::forward_as_tuple(3, 9, 9),
std::forward_as_tuple(0, 0, -42))));
}
#endif // !defined(_MSC_VER)
TEST(HashValueTest, CombineContiguousWorks) {
std::vector<std::tuple<int>> v1 = {std::make_tuple(1), std::make_tuple(3)};
@ -304,16 +300,12 @@ TEST(HashValueTest, Strings) {
SpyHash(absl::string_view("ABC")));
}
// TODO(EricWF): MSVC 15 has a bug that causes it to incorrectly evaluate the
// SFINAE in internal/hash.h, causing this test to fail.
#if !defined(_MSC_VER)
TEST(HashValueTest, StdArray) {
EXPECT_TRUE((is_hashable<std::array<int, 3>>::value));
EXPECT_TRUE(absl::VerifyTypeImplementsAbslHashCorrectly(
std::make_tuple(std::array<int, 3>{}, std::array<int, 3>{{0, 23, 42}})));
}
#endif // !defined(_MSC_VER)
TEST(HashValueTest, StdBitset) {
EXPECT_TRUE((is_hashable<std::bitset<257>>::value));
@ -414,9 +406,6 @@ TEST(HashValueTest, Variant) {
#endif
}
// TODO(EricWF): MSVC 15 has a bug that causes it to incorrectly evaluate the
// SFINAE in internal/hash.h, causing this test to fail.
#if !defined(_MSC_VER)
TEST(HashValueTest, Maps) {
EXPECT_TRUE((is_hashable<std::map<int, std::string>>::value));
@ -433,7 +422,6 @@ TEST(HashValueTest, Maps) {
MM{{0, "foo"}, {42, "bar"}}, MM{{1, "foo"}, {42, "bar"}},
MM{{1, "foo"}, {1, "foo"}, {43, "bar"}}, MM{{1, "foo"}, {43, "baz"}})));
}
#endif // !defined(_MSC_VER)
template <typename T, typename = void>
struct IsHashCallble : std::false_type {};
@ -511,8 +499,16 @@ struct CombineVariadic {
Int(4));
}
};
enum class InvokeTag {
kUniquelyRepresented,
kHashValue,
#if ABSL_HASH_INTERNAL_SUPPORT_LEGACY_HASH_
kLegacyHash,
#endif // ABSL_HASH_INTERNAL_SUPPORT_LEGACY_HASH_
kStdHash,
kNone
};
using InvokeTag = absl::hash_internal::InvokeHashTag;
template <InvokeTag T>
using InvokeTagConstant = std::integral_constant<InvokeTag, T>;