Whitespace maintenance. Remove a bunch of tabs that snuck in. No functionality change

llvm-svn: 220142

17 files changed, 123 insertions, 123 deletions

diff --git a/libcxx/include/forward_list b/libcxx/include/forward_list
index a83b19520e2..f48f41bceab 100644
--- a/libcxx/include/forward_list
+++ b/libcxx/include/forward_list
@@ -1430,7 +1430,7 @@ forward_list<_Tp, _Alloc>::remove(const value_type& __v)
             iterator __j = _VSTD::next(__i, 2);
             for (; __j != __e && *__j == __v; ++__j)
                 ;
-			__deleted_nodes.splice_after(__deleted_nodes.before_begin(), *this, __i, __j);
+            __deleted_nodes.splice_after(__deleted_nodes.before_begin(), *this, __i, __j);
             if (__j == __e)
                 break;
             __i = __j;
diff --git a/libcxx/include/type_traits b/libcxx/include/type_traits
index 99cc7e1ebaf..b359710e827 100644
--- a/libcxx/include/type_traits
+++ b/libcxx/include/type_traits
@@ -1543,11 +1543,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_move_assignable
 
 // is_destructible
 
-//	if it's a reference, return true
-//	if it's a function, return false
-//	if it's   void,     return false
-//	if it's an array of unknown bound, return false
-//	Otherwise, return "std::declval<_Up&>().~_Up()" is well-formed
+//  if it's a reference, return true
+//  if it's a function, return false
+//  if it's   void,     return false
+//  if it's an array of unknown bound, return false
+//  Otherwise, return "std::declval<_Up&>().~_Up()" is well-formed
 //    where _Up is remove_all_extents<_Tp>::type
 
 template <class>
@@ -1555,15 +1555,15 @@ struct __is_destructible_apply { typedef int type; };
 
 template <typename _Tp>
 struct __is_destructor_wellformed {
-	template <typename _Tp1>
-	static char  __test (
+    template <typename _Tp1>
+    static char  __test (
         typename __is_destructible_apply<decltype(_VSTD::declval<_Tp1&>().~_Tp1())>::type
     );
 
-	template <typename _Tp1>
-	static __two __test (...);
-	
-	static const bool value = sizeof(__test<_Tp>(12)) == sizeof(char);
+    template <typename _Tp1>
+    static __two __test (...);
+    
+    static const bool value = sizeof(__test<_Tp>(12)) == sizeof(char);
 };
 
 template <class _Tp, bool>
diff --git a/libcxx/test/atomics/atomics.types.generic/trivially_copyable.fail.cpp b/libcxx/test/atomics/atomics.types.generic/trivially_copyable.fail.cpp
index 49ec0694581..f2bf4db0de4 100644
--- a/libcxx/test/atomics/atomics.types.generic/trivially_copyable.fail.cpp
+++ b/libcxx/test/atomics/atomics.types.generic/trivially_copyable.fail.cpp
@@ -54,17 +54,17 @@
 #include <chrono> // for nanoseconds
 
 struct NotTriviallyCopyable {
-	NotTriviallyCopyable ( int i ) : i_(i) {}
-	NotTriviallyCopyable ( const NotTriviallyCopyable &rhs) : i_(rhs.i_) {}
-	int i_;
-	};
+    NotTriviallyCopyable ( int i ) : i_(i) {}
+    NotTriviallyCopyable ( const NotTriviallyCopyable &rhs) : i_(rhs.i_) {}
+    int i_;
+    };
 
 template <class T>
 void test ( T t ) {
-	std::atomic<T> t0(t);
-	}
+    std::atomic<T> t0(t);
+    }
 
 int main()
 {
-	test(NotTriviallyCopyable(42));
+    test(NotTriviallyCopyable(42));
 }
diff --git a/libcxx/test/atomics/atomics.types.generic/trivially_copyable.pass.cpp b/libcxx/test/atomics/atomics.types.generic/trivially_copyable.pass.cpp
index c5c18f0a86b..e6e9bcc172e 100644
--- a/libcxx/test/atomics/atomics.types.generic/trivially_copyable.pass.cpp
+++ b/libcxx/test/atomics/atomics.types.generic/trivially_copyable.pass.cpp
@@ -56,18 +56,18 @@
 #include <chrono> // for nanoseconds
 
 struct TriviallyCopyable {
-	TriviallyCopyable ( int i ) : i_(i) {}
-	int i_;
-	};
+    TriviallyCopyable ( int i ) : i_(i) {}
+    int i_;
+    };
 
 template <class T>
 void test ( T t ) {
-	std::atomic<T> t0(t);
-	}
+    std::atomic<T> t0(t);
+    }
 
 int main()
 {
-	test(TriviallyCopyable(42));
-	test(std::this_thread::get_id());
-	test(std::chrono::nanoseconds(2));
+    test(TriviallyCopyable(42));
+    test(std::this_thread::get_id());
+    test(std::chrono::nanoseconds(2));
 }
diff --git a/libcxx/test/containers/sequences/forwardlist/forwardlist.ops/remove.pass.cpp b/libcxx/test/containers/sequences/forwardlist/forwardlist.ops/remove.pass.cpp
index ae381e65bd2..18d4cae8cc6 100644
--- a/libcxx/test/containers/sequences/forwardlist/forwardlist.ops/remove.pass.cpp
+++ b/libcxx/test/containers/sequences/forwardlist/forwardlist.ops/remove.pass.cpp
@@ -18,14 +18,14 @@
 #include "min_allocator.h"
 
 struct S {
-	S(int i) : i_(new int(i)) {}
-	S(const S &rhs) : i_(new int(*rhs.i_)) {}
-	S& operator = (const S &rhs) { *i_ = *rhs.i_; return *this; }
-	~S () { delete i_; i_ = NULL; }
-	bool operator == (const S &rhs) const { return *i_ == *rhs.i_; }
-	int get () const { return *i_; }
-	int *i_;
-	};
+    S(int i) : i_(new int(i)) {}
+    S(const S &rhs) : i_(new int(*rhs.i_)) {}
+    S& operator = (const S &rhs) { *i_ = *rhs.i_; return *this; }
+    ~S () { delete i_; i_ = NULL; }
+    bool operator == (const S &rhs) const { return *i_ == *rhs.i_; }
+    int get () const { return *i_; }
+    int *i_;
+    };
 
 
 int main()
@@ -98,10 +98,10 @@ int main()
     c.remove(c.front());
     C::const_iterator it = c.begin();
     for(int *ip = std::begin(t2); ip != std::end(t2); ++ip, ++it) {
-	    assert ( it != c.end());
+        assert ( it != c.end());
         assert ( *ip == it->get());
-	    }
-	assert ( it == c.end ());
+        }
+    assert ( it == c.end ());
     }
 #if __cplusplus >= 201103L
     {
diff --git a/libcxx/test/containers/sequences/list/list.ops/remove.pass.cpp b/libcxx/test/containers/sequences/list/list.ops/remove.pass.cpp
index 106c0527f5f..f580c94ef48 100644
--- a/libcxx/test/containers/sequences/list/list.ops/remove.pass.cpp
+++ b/libcxx/test/containers/sequences/list/list.ops/remove.pass.cpp
@@ -17,14 +17,14 @@
 #include "min_allocator.h"
 
 struct S {
-	S(int i) : i_(new int(i)) {}
-	S(const S &rhs) : i_(new int(*rhs.i_)) {}
-	S& operator = (const S &rhs) { *i_ = *rhs.i_; return *this; }
-	~S () { delete i_; i_ = NULL; }
-	bool operator == (const S &rhs) const { return *i_ == *rhs.i_; }
-	int get () const { return *i_; }
-	int *i_;
-	};
+    S(int i) : i_(new int(i)) {}
+    S(const S &rhs) : i_(new int(*rhs.i_)) {}
+    S& operator = (const S &rhs) { *i_ = *rhs.i_; return *this; }
+    ~S () { delete i_; i_ = NULL; }
+    bool operator == (const S &rhs) const { return *i_ == *rhs.i_; }
+    int get () const { return *i_; }
+    int *i_;
+    };
 
 
 int main()
@@ -52,10 +52,10 @@ int main()
     c.remove(c.front());
     std::list<S>::const_iterator it = c.begin();
     for(int *ip = a2; ip < a2+5; ++ip, ++it) {
-	    assert ( it != c.end());
+        assert ( it != c.end());
         assert ( *ip == it->get());
-	    }
-	assert ( it == c.end ());
+        }
+    assert ( it == c.end ());
     }
 #if __cplusplus >= 201103L
     {
diff --git a/libcxx/test/input.output/string.streams/istringstream/istringstream.assign/move.pass.cpp b/libcxx/test/input.output/string.streams/istringstream/istringstream.assign/move.pass.cpp
index a3e869de2d9..e57ad55c907 100644
--- a/libcxx/test/input.output/string.streams/istringstream/istringstream.assign/move.pass.cpp
+++ b/libcxx/test/input.output/string.streams/istringstream/istringstream.assign/move.pass.cpp
@@ -33,24 +33,24 @@ int main()
         ss >> i;
         assert(i == 456);
     }
-	{
-		std::istringstream s1("Aaaaa Bbbbb Cccccccccc Dddddddddddddddddd");
-		std::string s;
-		s1 >> s;
+    {
+        std::istringstream s1("Aaaaa Bbbbb Cccccccccc Dddddddddddddddddd");
+        std::string s;
+        s1 >> s;
 
-		std::istringstream s2 = std::move(s1);
-		s2 >> s;
-		assert(s == "Bbbbb");
+        std::istringstream s2 = std::move(s1);
+        s2 >> s;
+        assert(s == "Bbbbb");
 
-		std::istringstream s3;
-		s3 = std::move(s2);
-		s3 >> s;
-		assert(s == "Cccccccccc");
+        std::istringstream s3;
+        s3 = std::move(s2);
+        s3 >> s;
+        assert(s == "Cccccccccc");
 
-		s1 = std::move(s3);
-		s1 >> s;
-		assert(s == "Dddddddddddddddddd");
-	}
+        s1 = std::move(s3);
+        s1 >> s;
+        assert(s == "Dddddddddddddddddd");
+    }
     {
         std::wistringstream ss0(L" 123 456");
         std::wistringstream ss;
@@ -64,23 +64,23 @@ int main()
         ss >> i;
         assert(i == 456);
     }
-	{
-		std::wistringstream s1(L"Aaaaa Bbbbb Cccccccccc Dddddddddddddddddd");
-		std::wstring s;
-		s1 >> s;
+    {
+        std::wistringstream s1(L"Aaaaa Bbbbb Cccccccccc Dddddddddddddddddd");
+        std::wstring s;
+        s1 >> s;
 
-		std::wistringstream s2 = std::move(s1);
-		s2 >> s;
-		assert(s == L"Bbbbb");
+        std::wistringstream s2 = std::move(s1);
+        s2 >> s;
+        assert(s == L"Bbbbb");
 
-		std::wistringstream s3;
-		s3 = std::move(s2);
-		s3 >> s;
-		assert(s == L"Cccccccccc");
+        std::wistringstream s3;
+        s3 = std::move(s2);
+        s3 >> s;
+        assert(s == L"Cccccccccc");
 
-		s1 = std::move(s3);
-		s1 >> s;
-		assert(s == L"Dddddddddddddddddd");
-	}
+        s1 = std::move(s3);
+        s1 >> s;
+        assert(s == L"Dddddddddddddddddd");
+    }
 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 }
diff --git a/libcxx/test/support/counting_predicates.hpp b/libcxx/test/support/counting_predicates.hpp
index e825848fc48..aab6a978577 100644
--- a/libcxx/test/support/counting_predicates.hpp
+++ b/libcxx/test/support/counting_predicates.hpp
@@ -14,33 +14,33 @@
 template <typename Predicate, typename Arg>
 struct unary_counting_predicate : public std::unary_function<Arg, bool>  {
 public:
-	unary_counting_predicate(Predicate p) : p_(p), count_(0) {}
-	~unary_counting_predicate() {}
-	
-	bool operator () (const Arg &a) const { ++count_; return p_(a); }
-	size_t count() const { return count_; }
-	void reset() { count_ = 0; }
-	
+    unary_counting_predicate(Predicate p) : p_(p), count_(0) {}
+    ~unary_counting_predicate() {}
+    
+    bool operator () (const Arg &a) const { ++count_; return p_(a); }
+    size_t count() const { return count_; }
+    void reset() { count_ = 0; }
+    
 private:
-	Predicate p_;
-	mutable size_t count_;
-	};
+    Predicate p_;
+    mutable size_t count_;
+    };
 
 
 template <typename Predicate, typename Arg1, typename Arg2=Arg1>
 struct binary_counting_predicate : public std::binary_function<Arg1, Arg2, bool> {
 public:
 
-	binary_counting_predicate ( Predicate p ) : p_(p), count_(0) {}
-	~binary_counting_predicate() {}
-	
-	bool operator () (const Arg1 &a1, const Arg2 &a2) const { ++count_; return p_(a1, a2); }
-	size_t count() const { return count_; }
-	void reset() { count_ = 0; }
+    binary_counting_predicate ( Predicate p ) : p_(p), count_(0) {}
+    ~binary_counting_predicate() {}
+    
+    bool operator () (const Arg1 &a1, const Arg2 &a2) const { ++count_; return p_(a1, a2); }
+    size_t count() const { return count_; }
+    void reset() { count_ = 0; }
 
 private:
-	Predicate p_;
-	mutable size_t count_;
-	};
+    Predicate p_;
+    mutable size_t count_;
+    };
 
 #endif // __COUNTING_PREDICATES_H
diff --git a/libcxx/test/utilities/allocator.adaptor/allocator.adaptor.types/allocator_pointers.pass.cpp b/libcxx/test/utilities/allocator.adaptor/allocator.adaptor.types/allocator_pointers.pass.cpp
index 537fb90158b..dbfaa978051 100644
--- a/libcxx/test/utilities/allocator.adaptor/allocator.adaptor.types/allocator_pointers.pass.cpp
+++ b/libcxx/test/utilities/allocator.adaptor/allocator.adaptor.types/allocator_pointers.pass.cpp
@@ -103,13 +103,13 @@ struct Foo { int x; };
 
 int main()
 {
-	test_pointer<std::scoped_allocator_adaptor<std::allocator<char>>> ();
-	test_pointer<std::scoped_allocator_adaptor<std::allocator<int>>> ();
-	test_pointer<std::scoped_allocator_adaptor<std::allocator<Foo>>> ();
+    test_pointer<std::scoped_allocator_adaptor<std::allocator<char>>> ();
+    test_pointer<std::scoped_allocator_adaptor<std::allocator<int>>> ();
+    test_pointer<std::scoped_allocator_adaptor<std::allocator<Foo>>> ();
 
-	test_void_pointer<std::scoped_allocator_adaptor<std::allocator<char>>> ();
-	test_void_pointer<std::scoped_allocator_adaptor<std::allocator<int>>> ();
-	test_void_pointer<std::scoped_allocator_adaptor<std::allocator<Foo>>> ();	
+    test_void_pointer<std::scoped_allocator_adaptor<std::allocator<char>>> ();
+    test_void_pointer<std::scoped_allocator_adaptor<std::allocator<int>>> ();
+    test_void_pointer<std::scoped_allocator_adaptor<std::allocator<Foo>>> ();   
 }
 #else
 int main() {}
diff --git a/libcxx/test/utilities/function.objects/refwrap/refwrap.helpers/ref_2.pass.cpp b/libcxx/test/utilities/function.objects/refwrap/refwrap.helpers/ref_2.pass.cpp
index 5a95097f689..4033e676f01 100644
--- a/libcxx/test/utilities/function.objects/refwrap/refwrap.helpers/ref_2.pass.cpp
+++ b/libcxx/test/utilities/function.objects/refwrap/refwrap.helpers/ref_2.pass.cpp
@@ -35,9 +35,9 @@ int main()
     unary_counting_predicate<bool(*)(int), int> cp(is5);
     assert(!cp(6));
     assert(cp.count() == 1);
-	assert(call_pred(cp));
+    assert(call_pred(cp));
     assert(cp.count() == 1);
-	assert(call_pred(std::ref(cp)));
+    assert(call_pred(std::ref(cp)));
     assert(cp.count() == 2);
-	}
+    }
 }
diff --git a/libcxx/test/utilities/memory/default.allocator/allocator_pointers.pass.cpp b/libcxx/test/utilities/memory/default.allocator/allocator_pointers.pass.cpp
index b894e45b8dc..5a8f7a28a04 100644
--- a/libcxx/test/utilities/memory/default.allocator/allocator_pointers.pass.cpp
+++ b/libcxx/test/utilities/memory/default.allocator/allocator_pointers.pass.cpp
@@ -103,13 +103,13 @@ struct Foo { int x; };
 
 int main()
 {
-	test_pointer<std::allocator<char>> ();
-	test_pointer<std::allocator<int>> ();
-	test_pointer<std::allocator<Foo>> ();	
+    test_pointer<std::allocator<char>> ();
+    test_pointer<std::allocator<int>> ();
+    test_pointer<std::allocator<Foo>> ();   
 
-	test_void_pointer<std::allocator<char>> ();
-	test_void_pointer<std::allocator<int>> ();
-	test_void_pointer<std::allocator<Foo>> ();	
+    test_void_pointer<std::allocator<char>> ();
+    test_void_pointer<std::allocator<int>> ();
+    test_void_pointer<std::allocator<Foo>> ();  
 }
 #else
 int main() {}
diff --git a/libcxx/test/utilities/meta/meta.unary.prop.query/alignment_of.pass.cpp b/libcxx/test/utilities/meta/meta.unary.prop.query/alignment_of.pass.cpp
index 01a2f65c92a..6ea1cac789e 100644
--- a/libcxx/test/utilities/meta/meta.unary.prop.query/alignment_of.pass.cpp
+++ b/libcxx/test/utilities/meta/meta.unary.prop.query/alignment_of.pass.cpp
@@ -39,7 +39,7 @@ int main()
     test_alignment_of<int, 4>();
     test_alignment_of<double, 8>();
 #if (defined(__ppc__) && !defined(__ppc64__))
-    test_alignment_of<bool, 4>();	// 32-bit PPC has four byte bool
+    test_alignment_of<bool, 4>();   // 32-bit PPC has four byte bool
 #else
     test_alignment_of<bool, 1>();
 #endif
diff --git a/libcxx/test/utilities/meta/meta.unary/meta.unary.cat/nullptr.pass.cpp b/libcxx/test/utilities/meta/meta.unary/meta.unary.cat/nullptr.pass.cpp
index d619701db23..691e3536167 100644
--- a/libcxx/test/utilities/meta/meta.unary/meta.unary.cat/nullptr.pass.cpp
+++ b/libcxx/test/utilities/meta/meta.unary/meta.unary.cat/nullptr.pass.cpp
@@ -10,7 +10,7 @@
 // type_traits
 
 // nullptr_t
-//	is_null_pointer
+//  is_null_pointer
 
 #include <type_traits>
 
diff --git a/libcxx/test/utilities/optional/optional.hash/hash.pass.cpp b/libcxx/test/utilities/optional/optional.hash/hash.pass.cpp
index ca23d78c531..9e5fb55c833 100644
--- a/libcxx/test/utilities/optional/optional.hash/hash.pass.cpp
+++ b/libcxx/test/utilities/optional/optional.hash/hash.pass.cpp
@@ -20,7 +20,7 @@
 int main()
 {
 #if _LIBCPP_STD_VER > 11
-	using std::experimental::optional;
+    using std::experimental::optional;
 
     {
         typedef int T;
diff --git a/libcxx/test/utilities/optional/optional.nullops/eqaul.pass.cpp b/libcxx/test/utilities/optional/optional.nullops/eqaul.pass.cpp
index d137d30a9ff..54fb522d8ca 100644
--- a/libcxx/test/utilities/optional/optional.nullops/eqaul.pass.cpp
+++ b/libcxx/test/utilities/optional/optional.nullops/eqaul.pass.cpp
@@ -18,9 +18,9 @@
 int main()
 {
 #if _LIBCPP_STD_VER > 11
-	using std::experimental::optional;
-	using std::experimental::nullopt_t;
-	using std::experimental::nullopt;
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
     
     {
     typedef int T;
diff --git a/libcxx/test/utilities/optional/optional.nullops/less_than.pass.cpp b/libcxx/test/utilities/optional/optional.nullops/less_than.pass.cpp
index 51c8e49f297..576a98aa4f3 100644
--- a/libcxx/test/utilities/optional/optional.nullops/less_than.pass.cpp
+++ b/libcxx/test/utilities/optional/optional.nullops/less_than.pass.cpp
@@ -18,9 +18,9 @@
 int main()
 {
 #if _LIBCPP_STD_VER > 11
-	using std::experimental::optional;
-	using std::experimental::nullopt_t;
-	using std::experimental::nullopt;
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
 
     {
     typedef int T;
diff --git a/libcxx/test/utilities/optional/optional.object/optional_const_void.fail.cpp b/libcxx/test/utilities/optional/optional.object/optional_const_void.fail.cpp
index ccbcf2e502a..6999cf2451f 100644
--- a/libcxx/test/utilities/optional/optional.object/optional_const_void.fail.cpp
+++ b/libcxx/test/utilities/optional/optional.object/optional_const_void.fail.cpp
@@ -16,7 +16,7 @@
 int main()
 {
 #if _LIBCPP_STD_VER > 11
-	using std::experimental::optional;
+    using std::experimental::optional;
 
     optional<const void> opt;
 #else