re PR libstdc++/61645 (forward_list::splice_after shall not throw exceptions)

	PR libstdc++/61645
	* include/bits/forward_list.h (forward_list::splice_after): Add
	noexcept.
	* include/bits/forward_list.tcc (forward_list::splice_after):
	Likewise.

From-SVN: r222525

libstdc++-v3/ChangeLog

 2015-04-28  Jonathan Wakely  <jwakely@redhat.com>
 
+	PR libstdc++/61645
+	* include/bits/forward_list.h (forward_list::splice_after): Add
+	noexcept.
+	* include/bits/forward_list.tcc (forward_list::splice_after):
+	Likewise.
+
 	PR libstdc++/65631
 	* include/bits/random.h (seed_seq) Define copy constructor and copy
 	assignment as deleted.

libstdc++-v3/include/bits/forward_list.h

@@ -1042,14 +1042,14 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
        *  Requires this != @a x.
        */
       void
-      splice_after(const_iterator __pos, forward_list&& __list)
+      splice_after(const_iterator __pos, forward_list&& __list) noexcept
       {
 	if (!__list.empty())
 	  _M_splice_after(__pos, __list.before_begin(), __list.end());
       }
 
       void
-      splice_after(const_iterator __pos, forward_list& __list)
+      splice_after(const_iterator __pos, forward_list& __list) noexcept
       { splice_after(__pos, std::move(__list)); }
 
       /**
@@ -1064,11 +1064,11 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
        */
       void
       splice_after(const_iterator __pos, forward_list&& __list,
-                   const_iterator __i);
+                   const_iterator __i) noexcept;
 
       void
       splice_after(const_iterator __pos, forward_list& __list,
-                   const_iterator __i)
+                   const_iterator __i) noexcept
       { splice_after(__pos, std::move(__list), __i); }
 
       /**
@@ -1086,12 +1086,12 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
        */
       void
       splice_after(const_iterator __pos, forward_list&&,
-                   const_iterator __before, const_iterator __last)
+                   const_iterator __before, const_iterator __last) noexcept
       { _M_splice_after(__pos, __before, __last); }
 
       void
       splice_after(const_iterator __pos, forward_list&,
-                   const_iterator __before, const_iterator __last)
+                   const_iterator __before, const_iterator __last) noexcept
       { _M_splice_after(__pos, __before, __last); }
 
       /**

libstdc++-v3/include/bits/forward_list.tcc

@@ -253,7 +253,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
     void
     forward_list<_Tp, _Alloc>::
     splice_after(const_iterator __pos, forward_list&&,
-		 const_iterator __i)
+		 const_iterator __i) noexcept
     {
       const_iterator __j = __i;
       ++__j;