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| author | Paolo Carlini <paolo.carlini@oracle.com> | 2009-07-22 12:19:58 +0000 |
|---|---|---|
| committer | Paolo Carlini <paolo@gcc.gnu.org> | 2009-07-22 12:19:58 +0000 |
| commit | af4beb4b957395c1eddac112cf14fa4e53d6c414 (patch) | |
| tree | 1e61190c3a9a6815bd9ea630167bfc40abe36aa1 /libstdc++-v3/include/std/valarray | |
| parent | 9d0c37619fe75c702cb4892e944290ae0aa21f98 (diff) | |
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valarray (valarray<>::operator=(const valarray<>&), [...]): Implement resolution of DR 630, [Ready] in Frankfurt.
2009-07-22 Paolo Carlini <paolo.carlini@oracle.com>
* include/std/valarray (valarray<>::operator=(const valarray<>&),
valarray<>::operator=(initializer_list<>)): Implement resolution
of DR 630, [Ready] in Frankfurt.
* testsuite/26_numerics/valarray/dr630-1.cc: New.
* testsuite/26_numerics/valarray/dr630-2.cc: Likewise.
* doc/xml/manual/intro.xml: Add an entry for DR 630.
From-SVN: r149929
Diffstat (limited to 'libstdc++-v3/include/std/valarray')
| -rw-r--r-- | libstdc++-v3/include/std/valarray | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/libstdc++-v3/include/std/valarray b/libstdc++-v3/include/std/valarray index 79d3a16..fa92751 100644 --- a/libstdc++-v3/include/std/valarray +++ b/libstdc++-v3/include/std/valarray @@ -1,7 +1,7 @@ // The template and inlines for the -*- C++ -*- valarray class. // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, -// 2006, 2007, 2009 +// 2006, 2007, 2008, 2009 // Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free @@ -647,7 +647,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std) template<typename _Tp> inline valarray<_Tp>::valarray(initializer_list<_Tp> __l) - : _M_size(__l.size()), _M_data(__valarray_get_storage<_Tp>(__l.size())) + : _M_size(__l.size()), _M_data(__valarray_get_storage<_Tp>(__l.size())) { std::__valarray_copy_construct (__l.begin(), __l.end(), _M_data); } #endif @@ -669,8 +669,22 @@ _GLIBCXX_BEGIN_NAMESPACE(std) inline valarray<_Tp>& valarray<_Tp>::operator=(const valarray<_Tp>& __v) { - _GLIBCXX_DEBUG_ASSERT(_M_size == __v._M_size); - std::__valarray_copy(__v._M_data, _M_size, _M_data); + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 630. arrays of valarray. + if (_M_size == __v._M_size) + std::__valarray_copy(__v._M_data, _M_size, _M_data); + else + { + if (_M_data) + { + std::__valarray_destroy_elements(_M_data, _M_data + _M_size); + std::__valarray_release_memory(_M_data); + } + _M_size = __v._M_size; + _M_data = __valarray_get_storage<_Tp>(_M_size); + std::__valarray_copy_construct(__v._M_data, __v._M_data + _M_size, + _M_data); + } return *this; } @@ -679,8 +693,23 @@ _GLIBCXX_BEGIN_NAMESPACE(std) inline valarray<_Tp>& valarray<_Tp>::operator=(initializer_list<_Tp> __l) { - _GLIBCXX_DEBUG_ASSERT(_M_size == __l.size()); - std::__valarray_copy(__l.begin(), __l.size(), _M_data); + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 630. arrays of valarray. + if (_M_size == __l.size()) + std::__valarray_copy(__l.begin(), __l.size(), _M_data); + else + { + if (_M_data) + { + std::__valarray_destroy_elements(_M_data, _M_data + _M_size); + std::__valarray_release_memory(_M_data); + } + _M_size = __l.size(); + _M_data = __valarray_get_storage<_Tp>(_M_size); + std::__valarray_copy_construct(__l.begin(), __l.begin() + _M_size, + _M_data); + } + return *this; } #endif |