maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Fix nullptr tests 

llvm-svn: 285117
This commit is contained in:
Eric Fiselier 2016-10-25 20:45:17 +00:00
parent ae541f6a71
commit 8f29ea36c3
2 changed files with 17 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libcxx/include/__nullptr
View File

@ -42,10 +42,6 @@ struct _LIBCPP_TYPE_VIS_ONLY nullptr_t
friend _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR bool operator==(nullptr_t, nullptr_t) {return true;}
friend _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR bool operator!=(nullptr_t, nullptr_t) {return false;}
friend _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR bool operator<(nullptr_t, nullptr_t) {return false;}
friend _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR bool operator<=(nullptr_t, nullptr_t) {return true;}
friend _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR bool operator>(nullptr_t, nullptr_t) {return false;}
friend _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR bool operator>=(nullptr_t, nullptr_t) {return true;}
};
inline _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR nullptr_t __get_nullptr_t() {return nullptr_t(0);}

25
libcxx/test/std/language.support/support.types/nullptr_t.pass.cpp
View File

@ -11,6 +11,8 @@
#include <type_traits>
#include <cassert>
#include "test_macros.h"
// typedef decltype(nullptr) nullptr_t;
struct A
@ -34,22 +36,20 @@ void test_conversions()
}
}
template <class T> struct Voider { typedef void type; };
template <class T, class = void> struct has_less : std::false_type {};
template <class T> struct has_less<T,
typename Voider<decltype(std::declval<T>() < nullptr)>::type> : std::true_type {};
template <class T>
void test_comparisons()
{
T p = nullptr;
assert(p == nullptr);
assert(p <= nullptr);
assert(p >= nullptr);
assert(!(p != nullptr));
assert(!(p < nullptr));
assert(!(p > nullptr));
assert(nullptr == p);
assert(nullptr <= p);
assert(nullptr >= p);
assert(!(nullptr != p));
assert(!(nullptr < p));
assert(!(nullptr > p));
}
#if defined(__clang__)
@ -89,6 +89,15 @@ int main()
test_conversions<int A::*>();
}
{
#ifdef _LIBCPP_HAS_NO_NULLPTR
static_assert(!has_less<std::nullptr_t>::value, "");
// FIXME: our c++03 nullptr emulation still allows for comparisons
// with other pointer types by way of the conversion operator.
//static_assert(!has_less<void*>::value, "");
#else
// TODO Enable this assertion when all compilers implement core DR 583.
// static_assert(!has_less<std::nullptr_t>::value, "");
#endif
test_comparisons<std::nullptr_t>();
test_comparisons<void*>();
test_comparisons<A*>();