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Implement P0599: 'noexcept for hash functions'. Fix a couple of hash functions (optional<T> and unique_ptr<T>) which were mistakenly marked as 'noexcept'. Reviewed as https://reviews.llvm.org/D31234

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@298573 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2017-03-23 02:40:28 +00:00
parent 03096267d6
commit af552ba05a
18 changed files with 69 additions and 30 deletions
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13
test/std/utilities/function.objects/unord.hash/pointer.pass.cpp
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@@ -23,6 +23,8 @@
#include <type_traits>
#include <limits>
#include "test_macros.h"
template <class T>
void
test()
@@ -30,6 +32,7 @@ test()
typedef std::hash<T> H;
static_assert((std::is_same<typename H::argument_type, T>::value), "" );
static_assert((std::is_same<typename H::result_type, std::size_t>::value), "" );
ASSERT_NOEXCEPT(H()(T()));
H h;
typedef typename std::remove_pointer<T>::type type;
@@ -38,7 +41,17 @@ test()
assert(h(&i) != h(&j));
}
void test_nullptr()
{
typedef std::nullptr_t T;
typedef std::hash<T> H;
static_assert((std::is_same<typename H::argument_type, T>::value), "" );
static_assert((std::is_same<typename H::result_type, std::size_t>::value), "" );
ASSERT_NOEXCEPT(H()(T()));
}
int main()
{
test<int*>();
test_nullptr();
}