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Define special members as defaulted 

* include/bits/ios_base.h (ios::Init::Init(const Init&))
	(ios::Init::operator=): Define as defaulted.
	* include/bits/stl_bvector.h (_Bit_reference(const _Bit_reference&)):
	Likewise.
	* include/bits/stream_iterator.h (istream_iterator::operator=)
	(ostream_iterator::operator=): Likewise.
	* include/bits/streambuf_iterator.h (istreambuf_iterator::operator=)
	Likewise.
	* include/std/bitset (bitset::reference::reference(const reference&)):
	Likewise.
	* include/std/complex (complex<float>::complex(const complex&))
	(complex<double>::complex(const complex&))
	(complex<long double>::complex(const complex&)): Likewise.

From-SVN: r261338
This commit is contained in:
Jonathan Wakely 2018-06-08 17:43:14 +01:00 committed by Jonathan Wakely
parent 29a50dfb47
commit a14175560c
7 changed files with 51 additions and 3 deletions
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16
libstdc++-v3/ChangeLog
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@ -1,3 +1,19 @@
2018-06-08 Jonathan Wakely <jwakely@redhat.com>
* include/bits/ios_base.h (ios::Init::Init(const Init&))
(ios::Init::operator=): Define as defaulted.
* include/bits/stl_bvector.h (_Bit_reference(const _Bit_reference&)):
Likewise.
* include/bits/stream_iterator.h (istream_iterator::operator=)
(ostream_iterator::operator=): Likewise.
* include/bits/streambuf_iterator.h (istreambuf_iterator::operator=)
Likewise.
* include/std/bitset (bitset::reference::reference(const reference&)):
Likewise.
* include/std/complex (complex<float>::complex(const complex&))
(complex<double>::complex(const complex&))
(complex<long double>::complex(const complex&)): Likewise.
2018-06-07 Jonathan Wakely <jwakely@redhat.com>
* include/bits/regex.h (sub_match): Add noexcept to default

5
libstdc++-v3/include/bits/ios_base.h
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@ -607,6 +607,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
Init();
~Init();
#if __cplusplus >= 201103L
Init(const Init&) = default;
Init& operator=(const Init&) = default;
#endif
private:
static _Atomic_word _S_refcount;
static bool _S_synced_with_stdio;

4
libstdc++-v3/include/bits/stl_bvector.h
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@ -79,6 +79,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
_Bit_reference() _GLIBCXX_NOEXCEPT : _M_p(0), _M_mask(0) { }
#if __cplusplus >= 201103L
_Bit_reference(const _Bit_reference&) = default;
#endif
operator bool() const _GLIBCXX_NOEXCEPT
{ return !!(*_M_p & _M_mask); }

8
libstdc++-v3/include/bits/stream_iterator.h
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@ -74,6 +74,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_ok(__obj._M_ok)
{ }
#if __cplusplus >= 201103L
istream_iterator& operator=(const istream_iterator&) = default;
#endif
const _Tp&
operator*() const
{
@ -188,6 +192,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
ostream_iterator(const ostream_iterator& __obj)
: _M_stream(__obj._M_stream), _M_string(__obj._M_string) { }
#if __cplusplus >= 201103L
ostream_iterator& operator=(const ostream_iterator&) = default;
#endif
/// Writes @a value to underlying ostream using operator<<. If
/// constructed with delimiter string, writes delimiter to ostream.
ostream_iterator&

5
libstdc++-v3/include/bits/streambuf_iterator.h
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@ -121,6 +121,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
istreambuf_iterator(streambuf_type* __s) _GLIBCXX_USE_NOEXCEPT
: _M_sbuf(__s), _M_c(traits_type::eof()) { }
#if __cplusplus >= 201103L
istreambuf_iterator&
operator=(const istreambuf_iterator&) noexcept = default;
#endif
/// Return the current character pointed to by iterator. This returns
/// streambuf.sgetc(). It cannot be assigned. NB: The result of
/// operator*() on an end of stream is undefined.

4
libstdc++-v3/include/std/bitset
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@ -816,6 +816,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
_M_bpos = _Base::_S_whichbit(__pos);
}
#if __cplusplus >= 201103L
reference(const reference&) = default;
#endif
~reference() _GLIBCXX_NOEXCEPT
{ }

12
libstdc++-v3/include/std/complex
View File

@ -1158,7 +1158,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// Let the compiler synthesize the copy and assignment
// operator. It always does a pretty good job.
// complex& operator=(const complex&);
#if __cplusplus >= 201103L
_GLIBCXX14_CONSTEXPR complex& operator=(const complex&) = default;
#endif
template<typename _Tp>
complex&
@ -1308,7 +1310,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
}
// The compiler will synthesize this, efficiently.
// complex& operator=(const complex&);
#if __cplusplus >= 201103L
_GLIBCXX14_CONSTEXPR complex& operator=(const complex&) = default;
#endif
template<typename _Tp>
complex&
@ -1460,7 +1464,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
}
// The compiler knows how to do this efficiently
// complex& operator=(const complex&);
#if __cplusplus >= 201103L
_GLIBCXX14_CONSTEXPR complex& operator=(const complex&) = default;
#endif
template<typename _Tp>
complex&