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function_template.hpp:

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- Pass-by-reference internally, when we can. Fixes #1067



[SVN r39244]
This commit is contained in:
Douglas Gregor
2007-09-13 19:06:53 +00:00
parent de27ae9697
commit 3312c7ffcd
1 changed files with 5 additions and 5 deletions
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10
include/boost/function/function_template.hpp
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@ -426,7 +426,7 @@ namespace boost {
BOOST_FUNCTION_TEMPLATE_ARGS); BOOST_FUNCTION_TEMPLATE_ARGS);
template<typename F> template<typename F>
bool assign_to(F f, function_buffer& functor) const bool assign_to(const F& f, function_buffer& functor) const
{ {
typedef typename get_function_tag<F>::type tag; typedef typename get_function_tag<F>::type tag;
return assign_to(f, functor, tag()); return assign_to(f, functor, tag());
@ -477,7 +477,7 @@ namespace boost {
// Assign to a function object using the small object optimization // Assign to a function object using the small object optimization
template<typename FunctionObj> template<typename FunctionObj>
void void
assign_functor(FunctionObj f, function_buffer& functor, assign_functor(const FunctionObj& f, function_buffer& functor,
mpl::true_) const mpl::true_) const
{ {
new ((void*)&functor.data) FunctionObj(f); new ((void*)&functor.data) FunctionObj(f);
@ -486,7 +486,7 @@ namespace boost {
// Assign to a function object allocated on the heap. // Assign to a function object allocated on the heap.
template<typename FunctionObj> template<typename FunctionObj>
void void
assign_functor(FunctionObj f, function_buffer& functor, assign_functor(const FunctionObj& f, function_buffer& functor,
mpl::false_) const mpl::false_) const
{ {
#ifndef BOOST_NO_STD_ALLOCATOR #ifndef BOOST_NO_STD_ALLOCATOR
@ -507,7 +507,7 @@ namespace boost {
template<typename FunctionObj> template<typename FunctionObj>
bool bool
assign_to(FunctionObj f, function_buffer& functor, assign_to(const FunctionObj& f, function_buffer& functor,
function_obj_tag) const function_obj_tag) const
{ {
if (!boost::detail::function::has_empty_target(boost::addressof(f))) { if (!boost::detail::function::has_empty_target(boost::addressof(f))) {
@ -765,7 +765,7 @@ namespace boost {
} }
template<typename Functor> template<typename Functor>
void assign_to(Functor f) void assign_to(const Functor& f)
{ {
using detail::function::vtable_base; using detail::function::vtable_base;