Further macro protection by replacing _[A-Z] with _[A-Z]p

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@145410 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/initializer_list b/include/initializer_list
index 3263906..2f88514 100644
--- a/include/initializer_list
+++ b/include/initializer_list
@@ -55,45 +55,45 @@
 
 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
 
-template<class _E>
+template<class _Ep>
 class _LIBCPP_VISIBLE initializer_list
 {
-    const _E* __begin_;
+    const _Ep* __begin_;
     size_t    __size_;
 
     _LIBCPP_ALWAYS_INLINE
-    initializer_list(const _E* __b, size_t __s) _NOEXCEPT
+    initializer_list(const _Ep* __b, size_t __s) _NOEXCEPT
         : __begin_(__b),
           __size_(__s)
         {}
 public:
-    typedef _E        value_type;
-    typedef const _E& reference;
-    typedef const _E& const_reference;
+    typedef _Ep        value_type;
+    typedef const _Ep& reference;
+    typedef const _Ep& const_reference;
     typedef size_t    size_type;
 
-    typedef const _E* iterator;
-    typedef const _E* const_iterator;
+    typedef const _Ep* iterator;
+    typedef const _Ep* const_iterator;
 
     _LIBCPP_ALWAYS_INLINE initializer_list() _NOEXCEPT : __begin_(nullptr), __size_(0) {}
 
     _LIBCPP_ALWAYS_INLINE size_t    size()  const _NOEXCEPT {return __size_;}
-    _LIBCPP_ALWAYS_INLINE const _E* begin() const _NOEXCEPT {return __begin_;}
-    _LIBCPP_ALWAYS_INLINE const _E* end()   const _NOEXCEPT {return __begin_ + __size_;}
+    _LIBCPP_ALWAYS_INLINE const _Ep* begin() const _NOEXCEPT {return __begin_;}
+    _LIBCPP_ALWAYS_INLINE const _Ep* end()   const _NOEXCEPT {return __begin_ + __size_;}
 };
 
-template<class _E>
+template<class _Ep>
 inline _LIBCPP_INLINE_VISIBILITY
-const _E*
-begin(initializer_list<_E> __il) _NOEXCEPT
+const _Ep*
+begin(initializer_list<_Ep> __il) _NOEXCEPT
 {
     return __il.begin();
 }
 
-template<class _E>
+template<class _Ep>
 inline _LIBCPP_INLINE_VISIBILITY
-const _E*
-end(initializer_list<_E> __il) _NOEXCEPT
+const _Ep*
+end(initializer_list<_Ep> __il) _NOEXCEPT
 {
     return __il.end();
 }