Release 1.55.0

[SVN r86621]

doc/Jamfile.v2

@@ -6,5 +6,11 @@
 project boost/doc ;
 import boostbook : boostbook ;
 
-boostbook function-doc : function.xml ;
+boostbook function-doc 
+    : 
+    function.xml 
+    :
+        <xsl:param>boost.root=../../../..
+        <format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/doc/html
+    ;
 

doc/history.xml

@@ -13,6 +13,15 @@
 
 <itemizedlist spacing="compact">
 
+  <listitem><para><bold>Version 1.52.0</bold>: </para>
+    <itemizedlist spacing="compact">
+      <listitem><para>Move constructors and move assignment 
+      operators added (only for compilers with C++11 rvalue 
+      references support). Original patch
+      contributed by Antony Polukhin.</para></listitem>
+    </itemizedlist>
+  </listitem>
+
   <listitem><para><bold>Version 1.37.0</bold>: </para>
     <itemizedlist spacing="compact">
       <listitem><para>Improved the performance of Boost.Function's

doc/reference.xml

@@ -58,7 +58,7 @@
       <para>A function object <code>f</code> of
       type <code>F</code> is
       <emphasis>stateless</emphasis> if it is a function pointer or if
-      <code><classname>boost::is_stateless</classname>&lt;T&gt;</code>
+      <code><classname>boost::is_stateless</classname>&lt;F&gt;</code>
       is true. The construction of or copy to a Boost.Function object
       from a stateless function object will not cause exceptions to be
       thrown and will not allocate any storage.
@@ -203,6 +203,15 @@
       <throws><simpara>Will not throw unless copying the target of <code>f</code> throws.</simpara></throws>
     </constructor>
 
+    <constructor>
+      <parameter name="f">
+        <paramtype><classname>functionN</classname>&amp;&amp;</paramtype>
+      </parameter>
+      <requires><simpara>C++11 compatible compiler.</simpara></requires>
+      <postconditions><simpara>Moves the value from <code>f</code> to <code>*this</code>. If the argument has its function object allocated on the heap, its buffer will be assigned to <code>*this</code> leaving argument empty.</simpara></postconditions>
+      <throws><simpara>Will not throw unless argument has its function object allocated not on the heap and copying the target of <code>f</code> throws.</simpara></throws>
+    </constructor>
+    
     <constructor>
       <template>
         <template-type-parameter name="F"/>
@@ -236,6 +245,15 @@
       </parameter>
       <postconditions><simpara>If copy construction does not throw, <code>*this</code> targets a copy of <code>f</code>'s target, if it has one, or is empty if <code>f.<methodname>empty</methodname>()</code>. If copy construction does throw, <code>this-&gt;<methodname>empty</methodname>()</code>.</simpara></postconditions>
     </copy-assignment>
+    
+    <copy-assignment>
+      <parameter name="f">
+        <paramtype><classname>functionN</classname>&amp;&amp;</paramtype>
+      </parameter>
+      <requires><simpara>C++11 compatible compiler.</simpara></requires>
+      <postconditions><simpara>Moves the value from <code>f</code> to <code>*this</code>. If the argument has its function object allocated on the heap, its buffer will be assigned to <code>*this</code> leaving argument empty.</simpara></postconditions>
+      <throws><simpara>Will not throw unless argument has its function object allocated not on the heap and copying the target of <code>f</code> throws.</simpara></throws>
+    </copy-assignment>
 
     <method-group name="modifiers">
       <method name="swap">
@@ -607,7 +625,16 @@
       <postconditions><simpara>Contains a copy of the <code>f</code>'s target, if it has one, or is empty if <code>f.<methodname>empty</methodname>()</code>.</simpara></postconditions>
       <throws><simpara>Will not throw unless copying the target of <code>f</code> throws.</simpara></throws>
     </constructor>
-
+        
+    <constructor>
+      <parameter name="f">
+        <paramtype><classname>functionN</classname>&amp;&amp;</paramtype>
+      </parameter>
+      <requires><simpara>C++11 compatible compiler.</simpara></requires>
+      <postconditions><simpara>Moves the value from <code>f</code> to <code>*this</code>. If the argument has its function object allocated on the heap, its buffer will be assigned to <code>*this</code> leaving argument empty.</simpara></postconditions>
+      <throws><simpara>Will not throw unless argument has its function object allocated not on the heap and copying the target of <code>f</code> throws.</simpara></throws>
+    </constructor>
+    
     <constructor>
       <parameter name="f">
         <paramtype>const <classname>function</classname>&amp;</paramtype>
@@ -616,6 +643,15 @@
       <throws><simpara>Will not throw unless copying the target of <code>f</code> throws.</simpara></throws>
     </constructor>
 
+    <constructor>
+      <parameter name="f">
+        <paramtype><classname>function</classname>&amp;&amp;</paramtype>
+      </parameter>
+      <requires><simpara>C++11 compatible compiler.</simpara></requires>
+      <postconditions><simpara>Moves the value from <code>f</code> to <code>*this</code>. If the argument has its function object allocated on the heap, its buffer will be assigned to <code>*this</code> leaving argument empty.</simpara></postconditions>
+      <throws><simpara>Will not throw unless argument has its function object allocated not on the heap and copying the target of <code>f</code> throws.</simpara></throws>
+    </constructor>
+    
     <constructor>
       <template>
         <template-type-parameter name="F"/>
@@ -645,10 +681,19 @@
 
     <copy-assignment>
       <parameter name="f">
-        <paramtype>const <classname>function</classname>&amp;</paramtype>
+        <paramtype>const <classname>functionN</classname>&amp;</paramtype>
       </parameter>
       <postconditions><simpara>If copy construction does not throw, <code>*this</code> targets a copy of <code>f</code>'s target, if it has one, or is empty if <code>f.<methodname>empty</methodname>()</code>. If copy construction does throw, <code>this-&gt;<methodname>empty</methodname>()</code>.</simpara></postconditions>
     </copy-assignment>
+    
+    <copy-assignment>
+      <parameter name="f">
+        <paramtype><classname>functionN</classname>&amp;&amp;</paramtype>
+      </parameter>
+      <requires><simpara>C++11 compatible compiler.</simpara></requires>
+      <postconditions><simpara>Moves the value from <code>f</code> to <code>*this</code>. If the argument has its function object allocated on the heap, its buffer will be assigned to <code>*this</code> leaving argument empty.</simpara></postconditions>
+      <throws><simpara>Will not throw unless argument has its function object allocated not on the heap and copying the target of <code>f</code> throws.</simpara></throws>
+    </copy-assignment>
 
     <copy-assignment>
       <parameter name="f">
@@ -657,6 +702,15 @@
       <postconditions><simpara>If copy construction of the target of <code>f</code> does not throw, <code>*this</code> targets a copy of <code>f</code>'s target, if it has one, or is empty if <code>f.<methodname>empty</methodname>()</code>. </simpara></postconditions>
       <throws><simpara>Will not throw when the target of <code>f</code> is a stateless function object or a reference to the function object. If copy construction does throw, <code>this-&gt;<methodname>empty</methodname>()</code>.</simpara></throws>
     </copy-assignment>
+    
+    <copy-assignment>
+      <parameter name="f">
+        <paramtype><classname>function</classname>&amp;&amp;</paramtype>
+      </parameter>
+      <requires><simpara>C++11 compatible compiler.</simpara></requires>
+      <postconditions><simpara>Moves the value from <code>f</code> to <code>*this</code>. If the argument has its function object allocated on the heap, its buffer will be assigned to <code>*this</code> leaving argument empty.</simpara></postconditions>
+      <throws><simpara>Will not throw unless argument has its function object allocated not on the heap and copying the target of <code>f</code> throws.</simpara></throws>
+    </copy-assignment>
 
     <method-group name="modifiers">
       <method name="swap">

doc/tutorial.xml

@@ -35,12 +35,12 @@ form to use for your compiler.
         <row>
           <entry>
             <itemizedlist spacing="compact">
-              <listitem><simpara>GNU C++ 2.95.x, 3.0.x, 3.1.x</simpara></listitem>
+              <listitem><simpara>GNU C++ 2.95.x, 3.0.x and later versions</simpara></listitem>
               <listitem><simpara>Comeau C++ 4.2.45.2</simpara></listitem>
               <listitem><simpara>SGI MIPSpro 7.3.0</simpara></listitem>
               <listitem><simpara>Intel C++ 5.0, 6.0</simpara></listitem>
               <listitem><simpara>Compaq's cxx 6.2</simpara></listitem>
-	      <listitem><simpara>Microsoft Visual C++ 7.1</simpara></listitem>
+	      <listitem><simpara>Microsoft Visual C++ 7.1 and later versions</simpara></listitem>
             </itemizedlist>
           </entry>
           <entry>

include/boost/function.hpp

@@ -23,8 +23,8 @@
 // in anything that may be included by function_template.hpp doesn't break
 #include <boost/function/detail/prologue.hpp>
 
-// Visual Age C++ doesn't handle the file iteration well
-#if BOOST_WORKAROUND(__IBMCPP__, >= 500)
+// Older Visual Age C++ version do not handle the file iteration well
+#if BOOST_WORKAROUND(__IBMCPP__, >= 500) && BOOST_WORKAROUND(__IBMCPP__, < 800)
 #  if BOOST_FUNCTION_MAX_ARGS >= 0
 #    include <boost/function/function0.hpp>
 #  endif

include/boost/function/function_base.hpp

@@ -15,9 +15,12 @@
 #include <string>
 #include <memory>
 #include <new>
-#include <typeinfo>
 #include <boost/config.hpp>
+#include <boost/detail/sp_typeinfo.hpp>
 #include <boost/assert.hpp>
+#include <boost/integer.hpp>
+#include <boost/type_traits/has_trivial_copy.hpp>
+#include <boost/type_traits/has_trivial_destructor.hpp>
 #include <boost/type_traits/is_const.hpp>
 #include <boost/type_traits/is_integral.hpp>
 #include <boost/type_traits/is_volatile.hpp>
@@ -42,7 +45,7 @@
 #endif       
 
 // Define BOOST_FUNCTION_STD_NS to the namespace that contains type_info.
-#ifdef BOOST_NO_EXCEPTION_STD_NAMESPACE
+#ifdef BOOST_NO_STD_TYPEINFO
 // Embedded VC++ does not have type_info in namespace std
 #  define BOOST_FUNCTION_STD_NS
 #else
@@ -51,7 +54,9 @@
 
 // Borrowed from Boost.Python library: determines the cases where we
 // need to use std::type_info::name to compare instead of operator==.
-# if (defined(__GNUC__) && __GNUC__ >= 3) \
+#if defined( BOOST_NO_TYPEID )
+#  define BOOST_FUNCTION_COMPARE_TYPE_ID(X,Y) ((X)==(Y))
+#elif (defined(__GNUC__) && __GNUC__ >= 3) \
  || defined(_AIX) \
  || (   defined(__sgi) && defined(__host_mips))
 #  include <cstring>
@@ -100,7 +105,7 @@ namespace boost {
         // For pointers to std::type_info objects
         struct type_t {
           // (get_functor_type_tag, check_functor_type_tag).
-          const BOOST_FUNCTION_STD_NS::type_info* type;
+          const detail::sp_typeinfo* type;
 
           // Whether the type is const-qualified.
           bool const_qualified;
@@ -198,11 +203,11 @@ namespace boost {
         {
           switch (op) {
           case clone_functor_tag: 
-            out_buffer.obj_ref.obj_ptr = in_buffer.obj_ref.obj_ptr;
+            out_buffer.obj_ref = in_buffer.obj_ref;
             return;
 
           case move_functor_tag:
-            out_buffer.obj_ref.obj_ptr = in_buffer.obj_ref.obj_ptr;
+            out_buffer.obj_ref = in_buffer.obj_ref;
             in_buffer.obj_ref.obj_ptr = 0;
             return;
 
@@ -212,12 +217,12 @@ namespace boost {
 
           case check_functor_type_tag:
             {
-              const BOOST_FUNCTION_STD_NS::type_info& check_type 
+              const detail::sp_typeinfo& check_type 
                 = *out_buffer.type.type;
 
               // Check whether we have the same type. We can add
               // cv-qualifiers, but we can't take them away.
-              if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, typeid(F))
+              if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, BOOST_SP_TYPEID(F))
                   && (!in_buffer.obj_ref.is_const_qualified 
                       || out_buffer.type.const_qualified)
                   && (!in_buffer.obj_ref.is_volatile_qualified
@@ -229,7 +234,7 @@ namespace boost {
             return;
 
           case get_functor_type_tag:
-            out_buffer.type.type = &typeid(F);
+            out_buffer.type.type = &BOOST_SP_TYPEID(F);
             out_buffer.type.const_qualified = in_buffer.obj_ref.is_const_qualified;
             out_buffer.type.volatile_qualified = in_buffer.obj_ref.is_volatile_qualified;
             return;
@@ -259,6 +264,12 @@ namespace boost {
           A(a)
         {
         }
+        
+        functor_wrapper(const functor_wrapper& f) :
+          F(static_cast<const F&>(f)),
+          A(static_cast<const A&>(f))
+        {
+        }
       };
 
       /**
@@ -283,14 +294,14 @@ namespace boost {
           } else if (op == destroy_functor_tag)
             out_buffer.func_ptr = 0;
           else if (op == check_functor_type_tag) {
-            const BOOST_FUNCTION_STD_NS::type_info& check_type 
+            const detail::sp_typeinfo& check_type 
               = *out_buffer.type.type;
-            if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, typeid(Functor)))
+            if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, BOOST_SP_TYPEID(Functor)))
               out_buffer.obj_ptr = &in_buffer.func_ptr;
             else
               out_buffer.obj_ptr = 0;
           } else /* op == get_functor_type_tag */ {
-            out_buffer.type.type = &typeid(Functor);
+            out_buffer.type.type = &BOOST_SP_TYPEID(Functor);
             out_buffer.type.const_qualified = false;
             out_buffer.type.volatile_qualified = false;
           }
@@ -304,23 +315,27 @@ namespace boost {
           if (op == clone_functor_tag || op == move_functor_tag) {
             const functor_type* in_functor = 
               reinterpret_cast<const functor_type*>(&in_buffer.data);
-            new ((void*)&out_buffer.data) functor_type(*in_functor);
+            new (reinterpret_cast<void*>(&out_buffer.data)) functor_type(*in_functor);
 
             if (op == move_functor_tag) {
-              reinterpret_cast<functor_type*>(&in_buffer.data)->~Functor();
+              functor_type* f = reinterpret_cast<functor_type*>(&in_buffer.data);
+              (void)f; // suppress warning about the value of f not being used (MSVC)
+              f->~Functor();
             }
           } else if (op == destroy_functor_tag) {
             // Some compilers (Borland, vc6, ...) are unhappy with ~functor_type.
-            reinterpret_cast<functor_type*>(&out_buffer.data)->~Functor();
+             functor_type* f = reinterpret_cast<functor_type*>(&out_buffer.data);
+             (void)f; // suppress warning about the value of f not being used (MSVC)
+             f->~Functor();
           } else if (op == check_functor_type_tag) {
-            const BOOST_FUNCTION_STD_NS::type_info& check_type 
+            const detail::sp_typeinfo& check_type 
               = *out_buffer.type.type;
-            if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, typeid(Functor)))
+            if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, BOOST_SP_TYPEID(Functor)))
               out_buffer.obj_ptr = &in_buffer.data;
             else
               out_buffer.obj_ptr = 0;
           } else /* op == get_functor_type_tag */ {
-            out_buffer.type.type = &typeid(Functor);
+            out_buffer.type.type = &BOOST_SP_TYPEID(Functor);
             out_buffer.type.const_qualified = false;
             out_buffer.type.volatile_qualified = false;            
           }
@@ -358,8 +373,10 @@ namespace boost {
             // Clone the functor
             // GCC 2.95.3 gets the CV qualifiers wrong here, so we
             // can't do the static_cast that we should do.
+            // jewillco: Changing this to static_cast because GCC 2.95.3 is
+            // obsolete.
             const functor_type* f =
-              (const functor_type*)(in_buffer.obj_ptr);
+              static_cast<const functor_type*>(in_buffer.obj_ptr);
             functor_type* new_f = new functor_type(*f);
             out_buffer.obj_ptr = new_f;
           } else if (op == move_functor_tag) {
@@ -372,14 +389,14 @@ namespace boost {
             delete f;
             out_buffer.obj_ptr = 0;
           } else if (op == check_functor_type_tag) {
-            const BOOST_FUNCTION_STD_NS::type_info& check_type
+            const detail::sp_typeinfo& check_type
               = *out_buffer.type.type;
-            if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, typeid(Functor)))
+            if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, BOOST_SP_TYPEID(Functor)))
               out_buffer.obj_ptr = in_buffer.obj_ptr;
             else
               out_buffer.obj_ptr = 0;
           } else /* op == get_functor_type_tag */ {
-            out_buffer.type.type = &typeid(Functor);
+            out_buffer.type.type = &BOOST_SP_TYPEID(Functor);
             out_buffer.type.const_qualified = false;
             out_buffer.type.volatile_qualified = false;
           }
@@ -414,7 +431,7 @@ namespace boost {
           typedef typename get_function_tag<functor_type>::type tag_type;
           switch (op) {
           case get_functor_type_tag:
-            out_buffer.type.type = &typeid(functor_type);
+            out_buffer.type.type = &BOOST_SP_TYPEID(functor_type);
             out_buffer.type.const_qualified = false;
             out_buffer.type.volatile_qualified = false;
             return;
@@ -463,7 +480,7 @@ namespace boost {
             // GCC 2.95.3 gets the CV qualifiers wrong here, so we
             // can't do the static_cast that we should do.
             const functor_wrapper_type* f =
-              (const functor_wrapper_type*)(in_buffer.obj_ptr);
+              static_cast<const functor_wrapper_type*>(in_buffer.obj_ptr);
             wrapper_allocator_type wrapper_allocator(static_cast<Allocator const &>(*f));
             wrapper_allocator_pointer_type copy = wrapper_allocator.allocate(1);
             wrapper_allocator.construct(copy, *f);
@@ -483,14 +500,14 @@ namespace boost {
             wrapper_allocator.deallocate(victim,1);
             out_buffer.obj_ptr = 0;
           } else if (op == check_functor_type_tag) {
-            const BOOST_FUNCTION_STD_NS::type_info& check_type 
+            const detail::sp_typeinfo& check_type 
               = *out_buffer.type.type;
-            if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, typeid(Functor)))
+            if (BOOST_FUNCTION_COMPARE_TYPE_ID(check_type, BOOST_SP_TYPEID(Functor)))
               out_buffer.obj_ptr = in_buffer.obj_ptr;
             else
               out_buffer.obj_ptr = 0;
           } else /* op == get_functor_type_tag */ {
-            out_buffer.type.type = &typeid(Functor);
+            out_buffer.type.type = &BOOST_SP_TYPEID(Functor);
             out_buffer.type.const_qualified = false;
             out_buffer.type.volatile_qualified = false;
           }
@@ -517,7 +534,7 @@ namespace boost {
           typedef typename get_function_tag<functor_type>::type tag_type;
           switch (op) {
           case get_functor_type_tag:
-            out_buffer.type.type = &typeid(functor_type);
+            out_buffer.type.type = &BOOST_SP_TYPEID(functor_type);
             out_buffer.type.const_qualified = false;
             out_buffer.type.volatile_qualified = false;
             return;
@@ -618,14 +635,14 @@ public:
   /** Determine if the function is empty (i.e., has no target). */
   bool empty() const { return !vtable; }
 
-  /** Retrieve the type of the stored function object, or typeid(void)
+  /** Retrieve the type of the stored function object, or BOOST_SP_TYPEID(void)
       if this is empty. */
-  const BOOST_FUNCTION_STD_NS::type_info& target_type() const
+  const detail::sp_typeinfo& target_type() const
   {
-    if (!vtable) return typeid(void);
+    if (!vtable) return BOOST_SP_TYPEID(void);
 
     detail::function::function_buffer type;
-    vtable->manager(functor, type, detail::function::get_functor_type_tag);
+    get_vtable()->manager(functor, type, detail::function::get_functor_type_tag);
     return *type.type.type;
   }
 
@@ -635,10 +652,10 @@ public:
       if (!vtable) return 0;
 
       detail::function::function_buffer type_result;
-      type_result.type.type = &typeid(Functor);
+      type_result.type.type = &BOOST_SP_TYPEID(Functor);
       type_result.type.const_qualified = is_const<Functor>::value;
       type_result.type.volatile_qualified = is_volatile<Functor>::value;
-      vtable->manager(functor, type_result, 
+      get_vtable()->manager(functor, type_result, 
                       detail::function::check_functor_type_tag);
       return static_cast<Functor*>(type_result.obj_ptr);
     }
@@ -653,14 +670,14 @@ public:
       if (!vtable) return 0;
 
       detail::function::function_buffer type_result;
-      type_result.type.type = &typeid(Functor);
+      type_result.type.type = &BOOST_SP_TYPEID(Functor);
       type_result.type.const_qualified = true;
       type_result.type.volatile_qualified = is_volatile<Functor>::value;
-      vtable->manager(functor, type_result, 
+      get_vtable()->manager(functor, type_result, 
                       detail::function::check_functor_type_tag);
       // GCC 2.95.3 gets the CV qualifiers wrong here, so we
       // can't do the static_cast that we should do.
-      return (const Functor*)(type_result.obj_ptr);
+      return static_cast<const Functor*>(type_result.obj_ptr);
     }
 
   template<typename F>
@@ -702,6 +719,15 @@ public:
 #endif
 
 public: // should be protected, but GCC 2.95.3 will fail to allow access
+  detail::function::vtable_base* get_vtable() const {
+    return reinterpret_cast<detail::function::vtable_base*>(
+             reinterpret_cast<std::size_t>(vtable) & ~static_cast<std::size_t>(0x01));
+  }
+
+  bool has_trivial_copy_and_destroy() const {
+    return reinterpret_cast<std::size_t>(vtable) & 0x01;
+  }
+
   detail::function::vtable_base* vtable;
   mutable detail::function::function_buffer functor;
 };
@@ -877,4 +903,8 @@ namespace detail {
 #undef BOOST_FUNCTION_ENABLE_IF_NOT_INTEGRAL
 #undef BOOST_FUNCTION_COMPARE_TYPE_ID
 
+#if defined(BOOST_MSVC)
+#   pragma warning( pop )
+#endif       
+
 #endif // BOOST_FUNCTION_BASE_HEADER

include/boost/function/function_fwd.hpp

@@ -21,7 +21,7 @@ namespace boost { namespace python { namespace objects {
 
 #if defined (BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)                    \
  || defined(BOOST_BCB_PARTIAL_SPECIALIZATION_BUG)                         \
- || !(BOOST_STRICT_CONFIG || !defined(__SUNPRO_CC) || __SUNPRO_CC > 0x540)
+ || !(defined(BOOST_STRICT_CONFIG) || !defined(__SUNPRO_CC) || __SUNPRO_CC > 0x540)
 #  define BOOST_FUNCTION_NO_FUNCTION_TYPE_SYNTAX
 #endif
 

include/boost/function/function_template.hpp

@@ -11,6 +11,7 @@
 // Note: this header is a header template and must NOT have multiple-inclusion
 // protection.
 #include <boost/function/detail/prologue.hpp>
+#include <boost/detail/no_exceptions_support.hpp>
 
 #if defined(BOOST_MSVC)
 #   pragma warning( push )
@@ -485,19 +486,19 @@ namespace boost {
                                             BOOST_FUNCTION_TEMPLATE_ARGS);
 
         template<typename F>
-        bool assign_to(F f, function_buffer& functor)
+        bool assign_to(F f, function_buffer& functor) const
         {
           typedef typename get_function_tag<F>::type tag;
           return assign_to(f, functor, tag());
         }
         template<typename F,typename Allocator>
-        bool assign_to_a(F f, function_buffer& functor, Allocator a)
+        bool assign_to_a(F f, function_buffer& functor, Allocator a) const
         {
           typedef typename get_function_tag<F>::type tag;
           return assign_to_a(f, functor, a, tag());
         }
 
-        void clear(function_buffer& functor)
+        void clear(function_buffer& functor) const
         {
           if (base.manager)
             base.manager(functor, functor, destroy_functor_tag);
@@ -507,13 +508,13 @@ namespace boost {
         // Function pointers
         template<typename FunctionPtr>
         bool 
-        assign_to(FunctionPtr f, function_buffer& functor, function_ptr_tag)
+        assign_to(FunctionPtr f, function_buffer& functor, function_ptr_tag) const
         {
           this->clear(functor);
           if (f) {
             // should be a reinterpret cast, but some compilers insist
             // on giving cv-qualifiers to free functions
-            functor.func_ptr = (void (*)())(f);
+            functor.func_ptr = reinterpret_cast<void (*)()>(f);
             return true;
           } else {
             return false;
@@ -521,7 +522,7 @@ namespace boost {
         }
         template<typename FunctionPtr,typename Allocator>
         bool 
-        assign_to_a(FunctionPtr f, function_buffer& functor, Allocator, function_ptr_tag)
+        assign_to_a(FunctionPtr f, function_buffer& functor, Allocator, function_ptr_tag) const
         {
           return assign_to(f,functor,function_ptr_tag());
         }
@@ -529,26 +530,26 @@ namespace boost {
         // Member pointers
 #if BOOST_FUNCTION_NUM_ARGS > 0
         template<typename MemberPtr>
-        bool assign_to(MemberPtr f, function_buffer& functor, member_ptr_tag)
+        bool assign_to(MemberPtr f, function_buffer& functor, member_ptr_tag) const
         {
           // DPG TBD: Add explicit support for member function
           // objects, so we invoke through mem_fn() but we retain the
           // right target_type() values.
           if (f) {
-            this->assign_to(mem_fn(f), functor);
+            this->assign_to(boost::mem_fn(f), functor);
             return true;
           } else {
             return false;
           }
         }
         template<typename MemberPtr,typename Allocator>
-        bool assign_to_a(MemberPtr f, function_buffer& functor, Allocator a, member_ptr_tag)
+        bool assign_to_a(MemberPtr f, function_buffer& functor, Allocator a, member_ptr_tag) const
         {
           // DPG TBD: Add explicit support for member function
           // objects, so we invoke through mem_fn() but we retain the
           // right target_type() values.
           if (f) {
-            this->assign_to_a(mem_fn(f), functor, a);
+            this->assign_to_a(boost::mem_fn(f), functor, a);
             return true;
           } else {
             return false;
@@ -560,13 +561,13 @@ namespace boost {
         // Assign to a function object using the small object optimization
         template<typename FunctionObj>
         void 
-        assign_functor(FunctionObj f, function_buffer& functor, mpl::true_)
+        assign_functor(FunctionObj f, function_buffer& functor, mpl::true_) const
         {
-          new ((void*)&functor.data) FunctionObj(f);
+          new (reinterpret_cast<void*>(&functor.data)) FunctionObj(f);
         }
         template<typename FunctionObj,typename Allocator>
         void 
-        assign_functor_a(FunctionObj f, function_buffer& functor, Allocator, mpl::true_)
+        assign_functor_a(FunctionObj f, function_buffer& functor, Allocator, mpl::true_) const
         {
           assign_functor(f,functor,mpl::true_());
         }
@@ -574,13 +575,13 @@ namespace boost {
         // Assign to a function object allocated on the heap.
         template<typename FunctionObj>
         void 
-        assign_functor(FunctionObj f, function_buffer& functor, mpl::false_)
+        assign_functor(FunctionObj f, function_buffer& functor, mpl::false_) const
         {
           functor.obj_ptr = new FunctionObj(f);
         }
         template<typename FunctionObj,typename Allocator>
         void 
-        assign_functor_a(FunctionObj f, function_buffer& functor, Allocator a, mpl::false_)
+        assign_functor_a(FunctionObj f, function_buffer& functor, Allocator a, mpl::false_) const
         {
           typedef functor_wrapper<FunctionObj,Allocator> functor_wrapper_type;
           typedef typename Allocator::template rebind<functor_wrapper_type>::other
@@ -595,7 +596,7 @@ namespace boost {
 
         template<typename FunctionObj>
         bool 
-        assign_to(FunctionObj f, function_buffer& functor, function_obj_tag)
+        assign_to(FunctionObj f, function_buffer& functor, function_obj_tag) const
         {
           if (!boost::detail::function::has_empty_target(boost::addressof(f))) {
             assign_functor(f, functor, 
@@ -607,7 +608,7 @@ namespace boost {
         }
         template<typename FunctionObj,typename Allocator>
         bool 
-        assign_to_a(FunctionObj f, function_buffer& functor, Allocator a, function_obj_tag)
+        assign_to_a(FunctionObj f, function_buffer& functor, Allocator a, function_obj_tag) const
         {
           if (!boost::detail::function::has_empty_target(boost::addressof(f))) {
             assign_functor_a(f, functor, a,
@@ -622,21 +623,17 @@ namespace boost {
         template<typename FunctionObj>
         bool 
         assign_to(const reference_wrapper<FunctionObj>& f, 
-                  function_buffer& functor, function_obj_ref_tag)
+                  function_buffer& functor, function_obj_ref_tag) const
         {
-          if (!boost::detail::function::has_empty_target(f.get_pointer())) {
-            functor.obj_ref.obj_ptr = (void *)f.get_pointer();
-            functor.obj_ref.is_const_qualified = is_const<FunctionObj>::value;
-            functor.obj_ref.is_volatile_qualified = is_volatile<FunctionObj>::value;
-            return true;
-          } else {
-            return false;
-          }
+          functor.obj_ref.obj_ptr = (void *)(f.get_pointer());
+          functor.obj_ref.is_const_qualified = is_const<FunctionObj>::value;
+          functor.obj_ref.is_volatile_qualified = is_volatile<FunctionObj>::value;
+          return true;
         }
         template<typename FunctionObj,typename Allocator>
         bool 
         assign_to_a(const reference_wrapper<FunctionObj>& f, 
-                  function_buffer& functor, Allocator, function_obj_ref_tag)
+                  function_buffer& functor, Allocator, function_obj_ref_tag) const
         {
           return assign_to(f,functor,function_obj_ref_tag());
         }
@@ -678,6 +675,11 @@ namespace boost {
               R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_ARGS>
       vtable_type;
 
+    vtable_type* get_vtable() const {
+      return reinterpret_cast<vtable_type*>(
+               reinterpret_cast<std::size_t>(vtable) & ~static_cast<std::size_t>(0x01));
+    }
+
     struct clear_type {};
 
   public:
@@ -746,23 +748,24 @@ namespace boost {
     {
       this->assign_to_own(f);
     }
-
+    
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+    BOOST_FUNCTION_FUNCTION(BOOST_FUNCTION_FUNCTION&& f) : function_base()
+    {
+      this->move_assign(f);
+    }
+#endif
+    
     ~BOOST_FUNCTION_FUNCTION() { clear(); }
 
-#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
-    // MSVC 6.0 and prior require all definitions to be inline, but
-    // these definitions can become very costly.
     result_type operator()(BOOST_FUNCTION_PARMS) const
     {
       if (this->empty())
         boost::throw_exception(bad_function_call());
 
-      return static_cast<vtable_type*>(vtable)->invoker
+      return get_vtable()->invoker
                (this->functor BOOST_FUNCTION_COMMA BOOST_FUNCTION_ARGS);
     }
-#else
-    result_type operator()(BOOST_FUNCTION_PARMS) const;
-#endif
 
     // The distinction between when to use BOOST_FUNCTION_FUNCTION and
     // when to use self_type is obnoxious. MSVC cannot handle self_type as
@@ -781,24 +784,26 @@ namespace boost {
     operator=(Functor BOOST_FUNCTION_TARGET_FIX(const &) f)
     {
       this->clear();
-      try {
+      BOOST_TRY  {
         this->assign_to(f);
-      } catch (...) {
+      } BOOST_CATCH (...) {
         vtable = 0;
-        throw;
+        BOOST_RETHROW;
       }
+      BOOST_CATCH_END
       return *this;
     }
     template<typename Functor,typename Allocator>
     void assign(Functor BOOST_FUNCTION_TARGET_FIX(const &) f, Allocator a)
     {
       this->clear();
-      try {
+      BOOST_TRY{
         this->assign_to_a(f,a);
-      } catch (...) {
+      } BOOST_CATCH (...) {
         vtable = 0;
-        throw;
+        BOOST_RETHROW;
       }
+      BOOST_CATCH_END
     }
 
 #ifndef BOOST_NO_SFINAE
@@ -823,14 +828,35 @@ namespace boost {
         return *this;
 
       this->clear();
-      try {
+      BOOST_TRY {
         this->assign_to_own(f);
-      } catch (...) {
+      } BOOST_CATCH (...) {
         vtable = 0;
-        throw;
+        BOOST_RETHROW;
       }
+      BOOST_CATCH_END
       return *this;
     }
+    
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+    // Move assignment from another BOOST_FUNCTION_FUNCTION
+    BOOST_FUNCTION_FUNCTION& operator=(BOOST_FUNCTION_FUNCTION&& f)
+    {
+      
+      if (&f == this)
+        return *this;
+
+      this->clear();
+      BOOST_TRY {
+        this->move_assign(f);
+      } BOOST_CATCH (...) {
+        vtable = 0;
+        BOOST_RETHROW;
+      }
+      BOOST_CATCH_END
+      return *this;
+    }
+#endif
 
     void swap(BOOST_FUNCTION_FUNCTION& other)
     {
@@ -847,7 +873,8 @@ namespace boost {
     void clear()
     {
       if (vtable) {
-        reinterpret_cast<vtable_type*>(vtable)->clear(this->functor);
+        if (!this->has_trivial_copy_and_destroy())
+          get_vtable()->clear(this->functor);
         vtable = 0;
       }
     }
@@ -858,7 +885,7 @@ namespace boost {
 #else
   private:
     struct dummy {
-      void nonnull() {};
+      void nonnull() {}
     };
 
     typedef void (dummy::*safe_bool)();
@@ -876,8 +903,11 @@ namespace boost {
     {
       if (!f.empty()) {
         this->vtable = f.vtable;
-        f.vtable->manager(f.functor, this->functor,
-                          boost::detail::function::clone_functor_tag);
+        if (this->has_trivial_copy_and_destroy())
+          this->functor = f.functor;
+        else
+          get_vtable()->base.manager(f.functor, this->functor,
+                                     boost::detail::function::clone_functor_tag);
       }
     }
 
@@ -900,11 +930,18 @@ namespace boost {
       // static initialization. Otherwise, we will have a race
       // condition here in multi-threaded code. See
       // http://thread.gmane.org/gmane.comp.lib.boost.devel/164902/.
-      static vtable_type stored_vtable = 
+      static const vtable_type stored_vtable = 
         { { &manager_type::manage }, &invoker_type::invoke };
 
-      if (stored_vtable.assign_to(f, functor)) vtable = &stored_vtable.base;
-      else vtable = 0;
+      if (stored_vtable.assign_to(f, functor)) {
+        std::size_t value = reinterpret_cast<std::size_t>(&stored_vtable.base);
+        if (boost::has_trivial_copy_constructor<Functor>::value &&
+            boost::has_trivial_destructor<Functor>::value &&
+            detail::function::function_allows_small_object_optimization<Functor>::value)
+          value |= static_cast<size_t>(0x01);
+        vtable = reinterpret_cast<detail::function::vtable_base *>(value);
+      } else 
+        vtable = 0;
     }
 
     template<typename Functor,typename Allocator>
@@ -927,11 +964,18 @@ namespace boost {
       // static initialization. Otherwise, we will have a race
       // condition here in multi-threaded code. See
       // http://thread.gmane.org/gmane.comp.lib.boost.devel/164902/.
-      static vtable_type stored_vtable =
+      static const vtable_type stored_vtable =
         { { &manager_type::manage }, &invoker_type::invoke };
 
-      if (stored_vtable.assign_to_a(f, functor, a)) vtable = &stored_vtable.base;
-      else vtable = 0;
+      if (stored_vtable.assign_to_a(f, functor, a)) { 
+        std::size_t value = reinterpret_cast<std::size_t>(&stored_vtable.base);
+        if (boost::has_trivial_copy_constructor<Functor>::value &&
+            boost::has_trivial_destructor<Functor>::value &&
+            detail::function::function_allows_small_object_optimization<Functor>::value)
+          value |= static_cast<std::size_t>(0x01);
+        vtable = reinterpret_cast<detail::function::vtable_base *>(value);
+      } else 
+        vtable = 0;
     }
 
     // Moves the value from the specified argument to *this. If the argument 
@@ -942,23 +986,23 @@ namespace boost {
       if (&f == this)
         return;
 
-#if !defined(BOOST_NO_EXCEPTIONS)      
-      try {
-#endif
+      BOOST_TRY {
         if (!f.empty()) {
           this->vtable = f.vtable;
-          f.vtable->manager(f.functor, this->functor,
-                            boost::detail::function::move_functor_tag);
-		  f.vtable = 0;
-#if !defined(BOOST_NO_EXCEPTIONS)      
+          if (this->has_trivial_copy_and_destroy())
+            this->functor = f.functor;
+          else
+            get_vtable()->base.manager(f.functor, this->functor,
+                                     boost::detail::function::move_functor_tag);
+          f.vtable = 0;
         } else {
           clear();
         }
-      } catch (...) {
+      } BOOST_CATCH (...) {
         vtable = 0;
-        throw;
+        BOOST_RETHROW;
       }
-#endif
+      BOOST_CATCH_END
     }
   };
 
@@ -975,21 +1019,6 @@ namespace boost {
     f1.swap(f2);
   }
 
-#if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)
-  template<typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
-  typename BOOST_FUNCTION_FUNCTION<
-      R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_ARGS>::result_type
-   BOOST_FUNCTION_FUNCTION<R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_ARGS>
-  ::operator()(BOOST_FUNCTION_PARMS) const
-  {
-    if (this->empty())
-      boost::throw_exception(bad_function_call());
-
-    return reinterpret_cast<const vtable_type*>(vtable)->invoker
-             (this->functor BOOST_FUNCTION_COMMA BOOST_FUNCTION_ARGS);
-  }
-#endif
-
 // Poison comparisons between boost::function objects of the same type.
 template<typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
   void operator==(const BOOST_FUNCTION_FUNCTION<
@@ -1061,12 +1090,26 @@ public:
 
   function(const base_type& f) : base_type(static_cast<const base_type&>(f)){}
 
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+  // Move constructors
+  function(self_type&& f): base_type(static_cast<base_type&&>(f)){}
+  function(base_type&& f): base_type(static_cast<base_type&&>(f)){}
+#endif
+  
   self_type& operator=(const self_type& f)
   {
     self_type(f).swap(*this);
     return *this;
   }
 
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+  self_type& operator=(self_type&& f)
+  {
+    self_type(static_cast<self_type&&>(f)).swap(*this);
+    return *this;
+  }
+#endif  
+
   template<typename Functor>
 #ifndef BOOST_NO_SFINAE
   typename enable_if_c<
@@ -1095,6 +1138,14 @@ public:
     self_type(f).swap(*this);
     return *this;
   }
+  
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+  self_type& operator=(base_type&& f)
+  {
+    self_type(static_cast<base_type&&>(f)).swap(*this);
+    return *this;
+  }
+#endif 
 };
 
 #undef BOOST_FUNCTION_PARTIAL_SPEC

test/Jamfile.v2

@@ -8,6 +8,7 @@
 # For more information, see http://www.boost.org/
 
 project
+    : requirements <toolset>msvc:<asynch-exceptions>on
     : source-location $(BOOST_ROOT)
     ;
 

test/allocator_test.cpp

@@ -128,6 +128,10 @@ test_main(int, char*[])
   BOOST_CHECK(dealloc_count == 0);
   fv.assign( &do_nothing, std::allocator<int>() );
   fv.clear();
+  
+  function0<void> fv2;
+  fv.assign(&do_nothing, std::allocator<int>() );
+  fv2.assign(fv, std::allocator<int>() );
 
   return 0;
 }

test/function_test.cpp

@@ -13,8 +13,8 @@
 #include <string>
 #include <utility>
 
-using namespace boost;
-using namespace std;
+using boost::function;
+using std::string;
 
 int global_int;
 
@@ -525,7 +525,7 @@ test_zero_args()
 static void
 test_one_arg()
 {
-  negate<int> neg;
+  std::negate<int> neg;
 
   function<int (int)> f1(neg);
   BOOST_CHECK(f1(5) == -5);
@@ -607,12 +607,12 @@ struct add_with_throw_on_copy {
 
   add_with_throw_on_copy(const add_with_throw_on_copy&)
   {
-    throw runtime_error("But this CAN'T throw");
+    throw std::runtime_error("But this CAN'T throw");
   }
 
   add_with_throw_on_copy& operator=(const add_with_throw_on_copy&)
   {
-    throw runtime_error("But this CAN'T throw");
+    throw std::runtime_error("But this CAN'T throw");
   }
 };
 
@@ -621,14 +621,38 @@ test_ref()
 {
   add_with_throw_on_copy atc;
   try {
-    boost::function<int (int, int)> f(ref(atc));
+    boost::function<int (int, int)> f(boost::ref(atc));
     BOOST_CHECK(f(1, 3) == 4);
   }
-  catch(runtime_error e) {
+  catch(std::runtime_error e) {
     BOOST_ERROR("Nonthrowing constructor threw an exception");
   }
 }
 
+static void dummy() {}
+
+static void test_empty_ref()
+{
+  boost::function<void()> f1;
+  boost::function<void()> f2(boost::ref(f1));
+
+  try {
+    f2();
+    BOOST_ERROR("Exception didn't throw for reference to empty function.");
+  }
+  catch(std::runtime_error e) {}
+
+  f1 = dummy;
+
+  try {
+    f2();
+  }
+  catch(std::runtime_error e) {
+    BOOST_ERROR("Error calling referenced function.");
+  }
+}
+
+
 static void test_exception()
 {
   boost::function<int (int, int)> f;
@@ -666,6 +690,95 @@ static void test_call()
   test_call_cref(std::plus<int>());
 }
 
+struct big_aggregating_structure {
+  int disable_small_objects_optimizations[32];
+    
+  big_aggregating_structure()
+  {
+    ++ global_int;
+  }
+    
+  big_aggregating_structure(const big_aggregating_structure&)
+  {
+    ++ global_int;
+  }
+
+  ~big_aggregating_structure()
+  {
+    -- global_int;
+  }
+    
+  void operator()() 
+  {
+    ++ global_int;
+  }
+
+  void operator()(int) 
+  {
+    ++ global_int;
+  }
+};
+
+template <class FunctionT>
+static void test_move_semantics() 
+{
+  typedef FunctionT f1_type;
+
+  big_aggregating_structure obj;
+  
+  f1_type f1 = obj;
+  global_int = 0;
+  f1();
+  
+  BOOST_CHECK(!f1.empty());
+  BOOST_CHECK(global_int == 1);
+  
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+  // Testing rvalue constructors
+  f1_type f2(static_cast<f1_type&&>(f1));
+  BOOST_CHECK(f1.empty());
+  BOOST_CHECK(!f2.empty());
+  BOOST_CHECK(global_int == 1);
+  f2();
+  BOOST_CHECK(global_int == 2);
+  
+  f1_type f3(static_cast<f1_type&&>(f2));
+  BOOST_CHECK(f1.empty());
+  BOOST_CHECK(f2.empty());
+  BOOST_CHECK(!f3.empty());
+  BOOST_CHECK(global_int == 2);
+  f3();
+  BOOST_CHECK(global_int == 3);
+    
+  // Testing move assignment
+  f1_type f4;
+  BOOST_CHECK(f4.empty());
+  f4 = static_cast<f1_type&&>(f3);
+  BOOST_CHECK(f1.empty());
+  BOOST_CHECK(f2.empty());
+  BOOST_CHECK(f3.empty());
+  BOOST_CHECK(!f4.empty());
+  BOOST_CHECK(global_int == 3);
+  f4();
+  BOOST_CHECK(global_int == 4);
+  
+  // Testing self move assignment
+  f4 = static_cast<f1_type&&>(f4);
+  BOOST_CHECK(!f4.empty());
+  BOOST_CHECK(global_int == 4);
+
+  // Testing, that no memory leaked when assigning to nonempty function
+  f4 = obj;
+  BOOST_CHECK(!f4.empty());
+  BOOST_CHECK(global_int == 4);
+  f1_type f5 = obj;
+  BOOST_CHECK(global_int == 5);
+  f4 = static_cast<f1_type&&>(f5);
+  BOOST_CHECK(global_int == 4);
+  
+#endif  
+}
+
 int test_main(int, char* [])
 {
   test_zero_args();
@@ -674,9 +787,12 @@ int test_main(int, char* [])
   test_emptiness();
   test_member_functions();
   test_ref();
+  test_empty_ref();
   test_exception();
   test_implicit();
   test_call();
+  test_move_semantics<function<void()> >();
+  test_move_semantics<boost::function0<void> >();
 
   return 0;
 }

test/lambda_test.cpp

@@ -15,21 +15,21 @@
 #include <boost/lambda/bind.hpp>
 #include <boost/function.hpp>
 
-using namespace std;
-using namespace boost;
-using namespace boost::lambda;
-
 static unsigned
 func_impl(int arg1, bool arg2, double arg3)
 {
+  using namespace std;
   return abs (static_cast<int>((arg2 ? arg1 : 2 * arg1) * arg3));
 }
 
 int test_main(int, char*[])
 {
+  using boost::function;
+  using namespace boost::lambda;
+
   function <unsigned(bool, double)> f1 = bind(func_impl, 15, _1, _2);
-  function <unsigned(double)>       f2 = bind(f1, false, _1);
-  function <unsigned()>             f3 = bind(f2, 4.0);
+  function <unsigned(double)>       f2 = boost::lambda::bind(f1, false, _1);
+  function <unsigned()>             f3 = boost::lambda::bind(f2, 4.0);
 
   f3();
 

test/mem_fun_cxx98.cpp

@@ -10,22 +10,28 @@
 
     
 #include <boost/function.hpp>
+#include <boost/detail/lightweight_test.hpp>
 #include <iostream>
 #include <functional>
 
 struct X {
   int foo(int);
+  std::ostream& foo2(std::ostream&) const;
 };
 int X::foo(int x) { return -x; }
+std::ostream& X::foo2(std::ostream& x) const { return x; }
 
 int main()
 {
     boost::function<int (X*, int)> f;
+    boost::function<std::ostream& (X*, std::ostream&)> f2;
 
-f = &X::foo;
-  
-X x;
-f(&x, 5);
+    f = &X::foo;
+    f2 = &X::foo2;
 
-    return 0;
+    X x;
+    BOOST_TEST(f(&x, 5) == -5);
+    BOOST_TEST(f2(&x, boost::ref(std::cout)) == std::cout);
+
+    return ::boost::report_errors();
 }

test/mem_fun_portable.cpp

@@ -10,22 +10,28 @@
 
     
 #include <boost/function.hpp>
+#include <boost/detail/lightweight_test.hpp>
 #include <iostream>
 #include <functional>
 
 struct X {
   int foo(int);
+  std::ostream& foo2(std::ostream&) const;
 };
 int X::foo(int x) { return -x; }
+std::ostream& X::foo2(std::ostream& x) const { return x; }
 
 int main()
 {
     boost::function2<int, X*, int> f;
+    boost::function2<std::ostream&, X*, std::ostream&> f2;
 
-f = &X::foo;
-  
-X x;
-f(&x, 5);
+    f = &X::foo;
+    f2 = &X::foo2;
 
-    return 0;
+    X x;
+    BOOST_TEST(f(&x, 5) == -5);
+    BOOST_TEST(f2(&x, boost::ref(std::cout)) == std::cout);
+
+    return ::boost::report_errors();
 }