summaryrefslogtreecommitdiff
path: root/include/c++/v1/cstddef
diff options
context:
space:
mode:
Diffstat (limited to 'include/c++/v1/cstddef')
-rw-r--r--include/c++/v1/cstddef102
1 files changed, 102 insertions, 0 deletions
diff --git a/include/c++/v1/cstddef b/include/c++/v1/cstddef
new file mode 100644
index 0000000..c3ca64a
--- /dev/null
+++ b/include/c++/v1/cstddef
@@ -0,0 +1,102 @@
+// -*- C++ -*-
+//===--------------------------- cstddef ----------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_CSTDDEF
+#define _LIBCPP_CSTDDEF
+
+/*
+ cstddef synopsis
+
+Macros:
+
+ offsetof(type,member-designator)
+ NULL
+
+namespace std
+{
+
+Types:
+
+ ptrdiff_t
+ size_t
+ max_align_t
+ nullptr_t
+
+} // std
+
+*/
+
+#include <__config>
+
+#include <stddef.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+using ::ptrdiff_t;
+using ::size_t;
+
+#if defined(__CLANG_MAX_ALIGN_T_DEFINED) || defined(_GCC_MAX_ALIGN_T)
+// Re-use the compiler's <stddef.h> max_align_t where possible.
+using ::max_align_t;
+#else
+typedef long double max_align_t;
+#endif
+
+#ifdef _LIBCPP_HAS_NO_NULLPTR
+
+struct _LIBCPP_TYPE_VIS_ONLY nullptr_t
+{
+ void* __lx;
+
+ struct __nat {int __for_bool_;};
+
+ _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR nullptr_t() : __lx(0) {}
+ _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR nullptr_t(int __nat::*) : __lx(0) {}
+
+ _LIBCPP_ALWAYS_INLINE _LIBCPP_CONSTEXPR operator int __nat::*() const {return 0;}
+
+ template <class _Tp>
+ _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 _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);}
+
+#define nullptr _VSTD::__get_nullptr_t()
+
+#endif // _LIBCPP_HAS_NO_NULLPTR
+
+_LIBCPP_END_NAMESPACE_STD
+
+#ifndef _LIBCPP_HAS_NO_NULLPTR
+
+namespace std
+{
+ typedef decltype(nullptr) nullptr_t;
+}
+
+#endif // _LIBCPP_HAS_NO_NULLPTR
+
+#endif // _LIBCPP_CSTDDEF