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Merge pull request #21570 from compnerd/libc++-check

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Basic: check for definition of _LIBCPP_VERSION (NFC)
This commit is contained in:
Saleem Abdulrasool
2019-01-02 08:19:43 -08:00
committed by GitHub
parent 3648c6ef63 896cc340fa
commit a0fbc6b5a6
1 changed files with 3 additions and 3 deletions
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6
include/swift/Basic/type_traits.h
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@@ -30,7 +30,7 @@ namespace swift {
/// is not intended to be specialized.
template<typename T>
struct IsTriviallyCopyable {
#if _LIBCPP_VERSION || SWIFT_COMPILER_IS_MSVC
#if defined(_LIBCPP_VERSION) || SWIFT_COMPILER_IS_MSVC
// libc++ and MSVC implement is_trivially_copyable.
static const bool value = std::is_trivially_copyable<T>::value;
#elif __has_feature(is_trivially_copyable) || __GNUC__ >= 5
@@ -42,7 +42,7 @@ struct IsTriviallyCopyable {
template<typename T>
struct IsTriviallyConstructible {
#if _LIBCPP_VERSION || SWIFT_COMPILER_IS_MSVC
#if defined(_LIBCPP_VERSION) || SWIFT_COMPILER_IS_MSVC
// libc++ and MSVC implement is_trivially_constructible.
static const bool value = std::is_trivially_constructible<T>::value;
#elif __has_feature(has_trivial_constructor) || __GNUC__ >= 5
@@ -54,7 +54,7 @@ struct IsTriviallyConstructible {
template<typename T>
struct IsTriviallyDestructible {
#if _LIBCPP_VERSION || SWIFT_COMPILER_IS_MSVC
#if defined(_LIBCPP_VERSION) || SWIFT_COMPILER_IS_MSVC
// libc++ and MSVC implement is_trivially_destructible.
static const bool value = std::is_trivially_destructible<T>::value;
#elif __has_feature(has_trivial_destructor) || __GNUC__ >= 5