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authorpaolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4>2011-06-12 15:51:36 +0000
committerpaolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4>2011-06-12 15:51:36 +0000
commit775d377d46fe81b10bc0d31eb3c0682212eda57c (patch)
tree35ec9f7a850f39851d2e1c34a6db9f76d61e6e77 /libstdc++-v3/include/bits/allocator.h
parentf94fe54ef816cd619607e902fa4926bdfc6566c4 (diff)
downloadgcc-775d377d46fe81b10bc0d31eb3c0682212eda57c.tar.gz
2011-06-12 François Dumont <francois.cppdevs@free.fr>
Paolo Carlini <paolo.carlini@oracle.com> * include/bits/allocator.h (__shrink_to_fit): Rename to __shrink_to_fit_aux, fix. * include/bits/stl_vector.h (_M_shrink_to_fit): Declare. (shrink_to_fit): Use the latter. * include/debug/vector (shrink_to_fit): Likewise. * include/bits/vector.tcc (_M_shrink_to_fit): Define. * include/bits/stl_deque.h (_M_shrink_to_fit): Declare. (shrink_to_fit): Use the latter. * include/debug/deque (shrink_to_fit): Likewise. * include/bits/deque.tcc (_M_shrink_to_fit): Define. * include/bits/vector.tcc (vector<bool>::_M_reallocate): Add. * include/bits/stl_bvector.h (_M_shrink_to_fit): Declare. (shrink_to_fit): Use the latter. (reserve): Use _M_reallocate, move inline. (_Bvector_base<>::_S_nword): Add, use it throughout. * include/debug/string (shrink_to_fit): Redo. * include/ext/vstring.h (shrink_to_fit): Optimize. * include/bits/basic_string.h (shrink_to_fit): Likewise. * testsuite/21_strings/debug/shrink_to_fit.cc: New. * testsuite/23_containers/vector/debug/shrink_to_fit.cc: Likewise. * testsuite/23_containers/vector/debug/bool/shrink_to_fit.cc: Likewise. * testsuite/23_containers/vector/bool/capacity/shrink_to_fit.cc: Likewise. * testsuite/23_containers/deque/debug/shrink_to_fit.cc: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@174967 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/include/bits/allocator.h')
-rw-r--r--libstdc++-v3/include/bits/allocator.h30
1 files changed, 20 insertions, 10 deletions
diff --git a/libstdc++-v3/include/bits/allocator.h b/libstdc++-v3/include/bits/allocator.h
index 7067fa09bd4..680195082da 100644
--- a/libstdc++-v3/include/bits/allocator.h
+++ b/libstdc++-v3/include/bits/allocator.h
@@ -184,18 +184,28 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
};
#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ template<typename _Tp, bool
+ = __or_<is_copy_constructible<typename _Tp::value_type>,
+ is_nothrow_move_constructible<typename _Tp::value_type>>::value>
+ struct __shrink_to_fit_aux
+ { static bool _S_do_it(_Tp&) { return false; } };
+
template<typename _Tp>
- bool
- __shrink_to_fit(_Tp& __v)
+ struct __shrink_to_fit_aux<_Tp, true>
{
- __try
- {
- _Tp(__v).swap(__v);
- return true;
- }
- __catch(...)
- { return false; }
- }
+ static bool
+ _S_do_it(_Tp& __c)
+ {
+ __try
+ {
+ _Tp(__make_move_if_noexcept_iterator(__c.begin()),
+ __make_move_if_noexcept_iterator(__c.end())).swap(__c);
+ return true;
+ }
+ __catch(...)
+ { return false; }
+ }
+ };
template<typename _Alloc, typename _Tp>
class __alloctr_rebind_helper