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msvc6 (with STLPort) workaround

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[SVN r15316]
This commit is contained in:
Dave Abrahams
2002-09-14 02:04:17 +00:00
parent 482006ed1a
commit af5176be70
1 changed files with 10 additions and 3 deletions
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13
include/boost/python/class.hpp
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@@ -70,7 +70,15 @@ namespace detail
SelectHolder::register_();
}
template <class T> int assert_default_constructible(T const&);
template <class T>
struct assert_default_constructible
{
static int check2(T const*);
static int check()
{
return sizeof(check2(&T()));
}
};
}
//
@@ -265,6 +273,7 @@ class class_ : public objects::class_base
// Define the default constructor.
self& def_init()
{
detail::assert_default_constructible<T>::check();
this->def_init(mpl::type_list<>::type());
return *this;
}
@@ -404,7 +413,6 @@ inline class_<T,X1,X2,X3>::class_()
: base(typeid(T).name(), id_vector::size, id_vector().ids)
{
this->register_();
detail::force_instantiate(sizeof(detail::assert_default_constructible(T())));
this->def_init();
this->set_instance_size(holder_selector::additional_size());
}
@@ -422,7 +430,6 @@ inline class_<T,X1,X2,X3>::class_(char const* name, char const* doc)
: base(name, id_vector::size, id_vector().ids, doc)
{
this->register_();
detail::force_instantiate(sizeof(detail::assert_default_constructible(T())));
this->def_init();
this->set_instance_size(holder_selector::additional_size());
}