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Apply the emulated nullptr_t with constexpr. This is an unusual configuration that would take advantage of this. But it has popped up in the wild and does no harm to support it. 

llvm-svn: 164575
This commit is contained in:
Howard Hinnant 2012-09-24 23:36:40 +00:00
parent 64e15fc956
commit 8e747d3671
1 changed files with 11 additions and 11 deletions
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22
libcxx/include/cstddef
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@ -62,28 +62,28 @@ struct _LIBCPP_VISIBLE nullptr_t
struct __nat {int __for_bool_;};
_LIBCPP_ALWAYS_INLINE nullptr_t() {}
_LIBCPP_ALWAYS_INLINE nullptr_t(int __nat::*) {}
_LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR nullptr_t() : _(0) {}
_LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR nullptr_t(int __nat::*) : _(0) {}
_LIBCPP_ALWAYS_INLINE operator int __nat::*() const {return 0;}
_LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR operator int __nat::*() const {return 0;}
template <class _Tp>
_LIBCPP_ALWAYS_INLINE
_LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR
operator _Tp* () const {return 0;}
template <class _Tp, class _Up>
_LIBCPP_ALWAYS_INLINE
operator _Tp _Up::* () const {return 0;}
friend _LIBCPP_ALWAYS_INLINE bool operator==(nullptr_t, nullptr_t) {return true;}
friend _LIBCPP_ALWAYS_INLINE bool operator!=(nullptr_t, nullptr_t) {return false;}
friend _LIBCPP_ALWAYS_INLINE bool operator<(nullptr_t, nullptr_t) {return false;}
friend _LIBCPP_ALWAYS_INLINE bool operator<=(nullptr_t, nullptr_t) {return true;}
friend _LIBCPP_ALWAYS_INLINE bool operator>(nullptr_t, nullptr_t) {return false;}
friend _LIBCPP_ALWAYS_INLINE bool operator>=(nullptr_t, nullptr_t) {return true;}
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 nullptr_t __get_nullptr_t() {return nullptr_t(0);}
inline _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR nullptr_t __get_nullptr_t() {return nullptr_t(0);}
#define nullptr _VSTD::__get_nullptr_t()