This adds defaulted definitions for a few more types where implicitly
declaring them is deprecated (as discussed at the WG21 meeting this
week).
* 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.
Tested powerpc64le-linux, committed to trunk.
commit 3121248b11c1e5a98e9c6337a864471306796000
Author: Jonathan Wakely <jwak...@redhat.com>
Date: Fri Jun 8 17:02:22 2018 +0100
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.
diff --git a/libstdc++-v3/include/bits/ios_base.h
b/libstdc++-v3/include/bits/ios_base.h
index c0c4e3b2abe..819afb96187 100644
--- a/libstdc++-v3/include/bits/ios_base.h
+++ b/libstdc++-v3/include/bits/ios_base.h
@@ -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;
diff --git a/libstdc++-v3/include/bits/stl_bvector.h
b/libstdc++-v3/include/bits/stl_bvector.h
index 24594044d7a..4527ce7832a 100644
--- a/libstdc++-v3/include/bits/stl_bvector.h
+++ b/libstdc++-v3/include/bits/stl_bvector.h
@@ -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); }
diff --git a/libstdc++-v3/include/bits/stream_iterator.h
b/libstdc++-v3/include/bits/stream_iterator.h
index 002310c07a2..7b682d2959e 100644
--- a/libstdc++-v3/include/bits/stream_iterator.h
+++ b/libstdc++-v3/include/bits/stream_iterator.h
@@ -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&
diff --git a/libstdc++-v3/include/bits/streambuf_iterator.h
b/libstdc++-v3/include/bits/streambuf_iterator.h
index 292ef3a5335..8a3a382325a 100644
--- a/libstdc++-v3/include/bits/streambuf_iterator.h
+++ b/libstdc++-v3/include/bits/streambuf_iterator.h
@@ -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.
diff --git a/libstdc++-v3/include/std/bitset b/libstdc++-v3/include/std/bitset
index e598ea312a7..25e44d1553d 100644
--- a/libstdc++-v3/include/std/bitset
+++ b/libstdc++-v3/include/std/bitset
@@ -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
{ }
diff --git a/libstdc++-v3/include/std/complex b/libstdc++-v3/include/std/complex
index 2e2c2c06560..2d1cc1831d0 100644
--- a/libstdc++-v3/include/std/complex
+++ b/libstdc++-v3/include/std/complex
@@ -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&
