boostorg/move
1
0
Fork 1
mirror of https://github.com/boostorg/move.git synced 2025-08-02 13:44:28 +02:00
Code Issues Packages Projects Releases Wiki Activity

Fix has_nothrow_move and avoid boost::has_nothrow_move<copyable>::value test as each compiler can deduce a different thing depending on its type analysis.

Browse Source 
[SVN r85410]
This commit is contained in:
Ion Gaztañaga
2013-08-20 18:10:09 +00:00
parent c07b4d3365
commit 55d5015a2b
2 changed files with 2 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/boost/move/traits.hpp
View File

@@ -41,14 +41,14 @@ struct has_trivial_destructor_after_move
{}; {};
//! By default this traits returns //! By default this traits returns
//! <pre>boost::is_nothrow_move_constructible<T>::value || boost::is_nothrow_move_assignable<T>::value </pre>. //! <pre>boost::is_nothrow_move_constructible<T>::value && boost::is_nothrow_move_assignable<T>::value </pre>.
//! Classes with non-throwing move constructor //! Classes with non-throwing move constructor
//! and assignment can specialize this trait to obtain some performance improvements. //! and assignment can specialize this trait to obtain some performance improvements.
template <class T> template <class T>
struct has_nothrow_move struct has_nothrow_move
: public ::boost::move_detail::integral_constant : public ::boost::move_detail::integral_constant
< bool < bool
, boost::is_nothrow_move_constructible<T>::value || , boost::is_nothrow_move_constructible<T>::value &&
boost::is_nothrow_move_assignable<T>::value boost::is_nothrow_move_assignable<T>::value
> >
{}; {};

1
test/move.cpp
View File

@@ -66,7 +66,6 @@ int main()
{ {
#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
BOOST_STATIC_ASSERT((boost::has_nothrow_move<movable>::value == true)); BOOST_STATIC_ASSERT((boost::has_nothrow_move<movable>::value == true));
BOOST_STATIC_ASSERT((boost::has_nothrow_move<copyable>::value == false));
BOOST_STATIC_ASSERT((boost::has_move_emulation_enabled<copyable>::value == false)); BOOST_STATIC_ASSERT((boost::has_move_emulation_enabled<copyable>::value == false));
BOOST_STATIC_ASSERT((boost::has_move_emulation_enabled<copyable*>::value == false)); BOOST_STATIC_ASSERT((boost::has_move_emulation_enabled<copyable*>::value == false));
BOOST_STATIC_ASSERT((boost::has_move_emulation_enabled<int>::value == false)); BOOST_STATIC_ASSERT((boost::has_move_emulation_enabled<int>::value == false));