[NFC][libcxx] Remove trailing whitespace

It's incredibly annoying when trying to create diffs

llvm-svn: 361981
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: a2a1ec27d0e799725cdd41f8456deb9a49433e2d
diff --git a/include/iterator b/include/iterator
index 03cfd83..e73b4b7 100644
--- a/include/iterator
+++ b/include/iterator
@@ -69,7 +69,7 @@
 
 template <class BidirectionalIterator>  // constexpr in C++17
   constexpr BidirectionalIterator prev(BidirectionalIterator x,
-    typename iterator_traits<BidirectionalIterator>::difference_type n = 1);    
+    typename iterator_traits<BidirectionalIterator>::difference_type n = 1);
 
 template <class Iterator>
 class reverse_iterator
@@ -136,7 +136,7 @@
 
 template <class Iterator>
 constexpr reverse_iterator<Iterator>
-operator+(typename reverse_iterator<Iterator>::difference_type n, 
+operator+(typename reverse_iterator<Iterator>::difference_type n,
           const reverse_iterator<Iterator>& x);   // constexpr in C++17
 
 template <class Iterator>
@@ -216,7 +216,7 @@
     typedef typename iterator_traits<Iterator>::value_type        value_type;
     typedef typename iterator_traits<Iterator>::iterator_category iterator_category;
     typedef value_type&&                                          reference;
- 
+
     constexpr move_iterator();  // all the constexprs are in C++17
     constexpr explicit move_iterator(Iterator i);
     template <class U>
@@ -230,10 +230,10 @@
     constexpr move_iterator operator++(int);
     constexpr move_iterator& operator--();
     constexpr move_iterator operator--(int);
-    constexpr move_iterator operator+(difference_type n) const; 
-    constexpr move_iterator& operator+=(difference_type n); 
-    constexpr move_iterator operator-(difference_type n) const; 
-    constexpr move_iterator& operator-=(difference_type n); 
+    constexpr move_iterator operator+(difference_type n) const;
+    constexpr move_iterator& operator+=(difference_type n);
+    constexpr move_iterator operator-(difference_type n) const;
+    constexpr move_iterator& operator-=(difference_type n);
     constexpr unspecified operator[](difference_type n) const;
 private:
     Iterator current; // exposition only
@@ -270,7 +270,7 @@
 
 template <class Iterator>
 constexpr move_iterator<Iterator> operator+(   // constexpr in C++17
-            typename move_iterator<Iterator>::difference_type n, 
+            typename move_iterator<Iterator>::difference_type n,
             const move_iterator<Iterator>& x);
 
 template <class Iterator>   // constexpr in C++17
@@ -534,8 +534,8 @@
 
 template <class _Tp>
 struct __is_exactly_input_iterator
-    : public integral_constant<bool, 
-         __has_iterator_category_convertible_to<_Tp, input_iterator_tag>::value && 
+    : public integral_constant<bool,
+         __has_iterator_category_convertible_to<_Tp, input_iterator_tag>::value &&
         !__has_iterator_category_convertible_to<_Tp, forward_iterator_tag>::value> {};
 
 template<class _Category, class _Tp, class _Distance = ptrdiff_t,
@@ -620,7 +620,7 @@
 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14
 typename enable_if
 <
-    __is_input_iterator<_InputIter>::value, 
+    __is_input_iterator<_InputIter>::value,
     _InputIter
 >::type
 next(_InputIter __x,
@@ -637,7 +637,7 @@
 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14
 typename enable_if
 <
-    __is_input_iterator<_InputIter>::value, 
+    __is_input_iterator<_InputIter>::value,
     _InputIter
 >::type
 prev(_InputIter __x,
@@ -1129,7 +1129,7 @@
       _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14
       move_iterator(const move_iterator<_Up>& __u) : __i(__u.base()) {}
     _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 _Iter base() const {return __i;}
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14
     reference operator*() const { return static_cast<reference>(*__i); }
     _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14
     pointer  operator->() const { return __i;}
@@ -1649,7 +1649,7 @@
 template <class _Iter>
 struct __libcpp_is_trivial_iterator
     : public _LIBCPP_BOOL_CONSTANT(is_pointer<_Iter>::value) {};
-    
+
 template <class _Iter>
 struct __libcpp_is_trivial_iterator<move_iterator<_Iter> >
     : public _LIBCPP_BOOL_CONSTANT(__libcpp_is_trivial_iterator<_Iter>::value) {};
@@ -1904,7 +1904,7 @@
 _LIBCPP_INLINE_VISIBILITY
 auto data(const _Cont& __c)
 _NOEXCEPT_(noexcept(__c.data()))
--> decltype        (__c.data()) 
+-> decltype        (__c.data())
 { return            __c.data(); }
 
 template <class _Tp, size_t _Sz>