[patch] Some small libstdc++ fixes

[patch] Some small libstdc++ fixes

[Jonathan Wakely]

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A fix and some minor tweaks.  Tested x86_64-linux, committed to trunk.

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commit 7f2475d59cc4ca4729341021e8b418ca77f7ccb2
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Jul 8 13:33:02 2014 +0100

    	* include/bits/allocated_ptr.h (__allocated_ptr::operator=): Add
    	missing return.
    	* include/experimental/any: Remove unused header.
    	* include/std/functional (_Maybe_wrap_member_pointer): Fix comments.
    	* testsuite/experimental/any/misc/any_cast_neg.cc: Adjust dg-error.
    	* testsuite/util/testsuite_regex.h: Move include guard.

diff --git a/libstdc++-v3/include/bits/allocated_ptr.h b/libstdc++-v3/include/bits/allocated_ptr.h
index 5cdce20..4ae3836 100644
--- a/libstdc++-v3/include/bits/allocated_ptr.h
+++ b/libstdc++-v3/include/bits/allocated_ptr.h
@@ -73,7 +73,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       }
 
       /// Release ownership of the owned pointer
-      __allocated_ptr& operator=(std::nullptr_t) noexcept { _M_ptr = nullptr; }
+      __allocated_ptr&
+      operator=(std::nullptr_t) noexcept
+      {
+	_M_ptr = nullptr;
+	return *this;
+      }
 
       /// Get the address that the owned pointer refers to.
       value_type* get() { return _S_raw_ptr(_M_ptr); }
diff --git a/libstdc++-v3/include/experimental/any b/libstdc++-v3/include/experimental/any
index 8f6e372..a69d006 100644
--- a/libstdc++-v3/include/experimental/any
+++ b/libstdc++-v3/include/experimental/any
@@ -41,7 +41,6 @@
 #include <type_traits>
 #include <bits/alloc_traits.h>
 #include <bits/uses_allocator.h>
-#include <bits/functexcept.h>
 
 namespace std _GLIBCXX_VISIBILITY(default)
 {
diff --git a/libstdc++-v3/include/std/functional b/libstdc++-v3/include/std/functional
index e677c24..15247bf 100644
--- a/libstdc++-v3/include/std/functional
+++ b/libstdc++-v3/include/std/functional
@@ -1184,8 +1184,8 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
 
   /**
    *  Maps member pointers into instances of _Mem_fn but leaves all
-   *  other function objects untouched. Used by tr1::bind(). The
-   *  primary template handles the non--member-pointer case.
+   *  other function objects untouched. Used by std::bind(). The
+   *  primary template handles the non-member-pointer case.
    */
   template<typename _Tp>
     struct _Maybe_wrap_member_pointer
@@ -1203,7 +1203,7 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
 
   /**
    *  Maps member pointers into instances of _Mem_fn but leaves all
-   *  other function objects untouched. Used by tr1::bind(). This
+   *  other function objects untouched. Used by std::bind(). This
    *  partial specialization handles the member pointer case.
    */
   template<typename _Tp, typename _Class>
diff --git a/libstdc++-v3/testsuite/experimental/any/misc/any_cast_neg.cc b/libstdc++-v3/testsuite/experimental/any/misc/any_cast_neg.cc
index b93b039..9a12ec3 100644
--- a/libstdc++-v3/testsuite/experimental/any/misc/any_cast_neg.cc
+++ b/libstdc++-v3/testsuite/experimental/any/misc/any_cast_neg.cc
@@ -26,5 +26,5 @@ void test01()
   using std::experimental::any_cast;
 
   const any y(1);
-  any_cast<int&>(y); // { dg-error "qualifiers" "" { target { *-*-* } } 381 }
+  any_cast<int&>(y); // { dg-error "qualifiers" "" { target { *-*-* } } 380 }
 }
diff --git a/libstdc++-v3/testsuite/util/testsuite_regex.h b/libstdc++-v3/testsuite/util/testsuite_regex.h
index c2031e9..da20941 100644
--- a/libstdc++-v3/testsuite/util/testsuite_regex.h
+++ b/libstdc++-v3/testsuite/util/testsuite_regex.h
@@ -19,13 +19,13 @@
 // <http://www.gnu.org/licenses/>.
 //
 
+#ifndef _TESTSUITE_REGEX_H
+#define _TESTSUITE_REGEX_H 1
+
 #include <regex>
 #include <stdexcept>
 #include <iostream>
 
-#ifndef _TESTSUITE_REGEX_H
-#define _TESTSUITE_REGEX_H 1
-
 namespace __gnu_test
 {
   // Test on a compilation of simple expressions, throw regex_error on error.