This adds <bits/ostream.h> so that other headers don't need to include
all of <ostream>, which pulls in all of <format> since C++23 (for the
std::print and std::println overloads in <ostream>). This new header
allows the constrained operator<< in <bits/unique_ptr.h> to be defined
without all of std::format being compiled.
We could also replace <ostream> with <bits/ostream.h> in all of
<istream>, <fstream>, <sstream>, and <spanstream>. That seems more
likely to cause problems for users who might be expecting <sstream> to
define std::endl, for example. Although the standard doesn't guarantee
that, it is more reasonable than expecting <memory> to define it! We can
look into making those changes for GCC 16.
libstdc++-v3/ChangeLog:
PR libstdc++/99995
* include/Makefile.am: Add new header.
* include/Makefile.in: Regenerate.
* include/bits/unique_ptr.h: Include bits/ostream.h instead of
ostream.
* include/std/ostream: Include new header.
* include/bits/ostream.h: New file.
---
Tested x86_64-linux. Pushed to trunk to partially address the PR 99995
regression that our headers just keep pulling in too much stuff with
each new -std mode.
libstdc++-v3/include/Makefile.am | 1 +
libstdc++-v3/include/Makefile.in | 1 +
libstdc++-v3/include/bits/ostream.h | 814 +++++++++++++++++++++++++
libstdc++-v3/include/bits/unique_ptr.h | 2 +-
libstdc++-v3/include/std/ostream | 763 +----------------------
5 files changed, 818 insertions(+), 763 deletions(-)
create mode 100644 libstdc++-v3/include/bits/ostream.h
diff --git a/libstdc++-v3/include/Makefile.am b/libstdc++-v3/include/Makefile.am
index 69f6c33b2955..de25aadd219d 100644
--- a/libstdc++-v3/include/Makefile.am
+++ b/libstdc++-v3/include/Makefile.am
@@ -137,6 +137,7 @@ bits_freestanding = \
${bits_srcdir}/memoryfwd.h \
${bits_srcdir}/monostate.h \
${bits_srcdir}/move.h \
+ ${bits_srcdir}/ostream.h \
${bits_srcdir}/out_ptr.h \
${bits_srcdir}/predefined_ops.h \
${bits_srcdir}/parse_numbers.h \
diff --git a/libstdc++-v3/include/Makefile.in b/libstdc++-v3/include/Makefile.in
index 4c461afb7513..5a20dfb69b0e 100644
--- a/libstdc++-v3/include/Makefile.in
+++ b/libstdc++-v3/include/Makefile.in
@@ -492,6 +492,7 @@ bits_freestanding = \
${bits_srcdir}/memoryfwd.h \
${bits_srcdir}/monostate.h \
${bits_srcdir}/move.h \
+ ${bits_srcdir}/ostream.h \
${bits_srcdir}/out_ptr.h \
${bits_srcdir}/predefined_ops.h \
${bits_srcdir}/parse_numbers.h \
diff --git a/libstdc++-v3/include/bits/ostream.h
b/libstdc++-v3/include/bits/ostream.h
new file mode 100644
index 000000000000..8ee63d2d66e5
--- /dev/null
+++ b/libstdc++-v3/include/bits/ostream.h
@@ -0,0 +1,814 @@
+// Output streams -*- C++ -*-
+
+// Copyright (C) 1997-2024 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/ostream.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{ostream}
+ */
+
+//
+// ISO C++ 14882: 27.6.2 Output streams
+//
+
+#ifndef _GLIBCXX_OSTREAM_H
+#define _GLIBCXX_OSTREAM_H 1
+
+#ifdef _GLIBCXX_SYSHDR
+#pragma GCC system_header
+#endif
+
+#include <bits/requires_hosted.h> // iostreams
+
+#include <ios>
+#include <bits/ostream_insert.h>
+
+# define __glibcxx_want_print
+#include <bits/version.h> // __glibcxx_syncbuf
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @brief Template class basic_ostream.
+ * @ingroup io
+ *
+ * @tparam _CharT Type of character stream.
+ * @tparam _Traits Traits for character type, defaults to
+ * char_traits<_CharT>.
+ *
+ * This is the base class for all output streams. It provides text
+ * formatting of all builtin types, and communicates with any class
+ * derived from basic_streambuf to do the actual output.
+ */
+ template<typename _CharT, typename _Traits>
+ class basic_ostream : virtual public basic_ios<_CharT, _Traits>
+ {
+ public:
+ // Types (inherited from basic_ios):
+ typedef _CharT char_type;
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::pos_type pos_type;
+ typedef typename _Traits::off_type off_type;
+ typedef _Traits traits_type;
+
+ // Non-standard Types:
+ typedef basic_streambuf<_CharT, _Traits>
__streambuf_type;
+ typedef basic_ios<_CharT, _Traits> __ios_type;
+ typedef basic_ostream<_CharT, _Traits> __ostream_type;
+ typedef num_put<_CharT, ostreambuf_iterator<_CharT, _Traits> >
+ __num_put_type;
+ typedef ctype<_CharT> __ctype_type;
+
+ /**
+ * @brief Base constructor.
+ *
+ * This ctor is almost never called by the user directly, rather from
+ * derived classes' initialization lists, which pass a pointer to
+ * their own stream buffer.
+ */
+ explicit
+ basic_ostream(__streambuf_type* __sb)
+ { this->init(__sb); }
+
+ /**
+ * @brief Base destructor.
+ *
+ * This does very little apart from providing a virtual base dtor.
+ */
+ virtual
+ ~basic_ostream() { }
+
+ /// Safe prefix/suffix operations.
+ class sentry;
+ friend class sentry;
+
+ ///@{
+ /**
+ * @brief Interface for manipulators.
+ *
+ * Manipulators such as @c std::endl and @c std::hex use these
+ * functions in constructs like "std::cout << std::endl". For more
+ * information, see the iomanip header.
+ */
+ __ostream_type&
+ operator<<(__ostream_type& (*__pf)(__ostream_type&))
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 60. What is a formatted input function?
+ // The inserters for manipulators are *not* formatted output functions.
+ return __pf(*this);
+ }
+
+ __ostream_type&
+ operator<<(__ios_type& (*__pf)(__ios_type&))
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 60. What is a formatted input function?
+ // The inserters for manipulators are *not* formatted output functions.
+ __pf(*this);
+ return *this;
+ }
+
+ __ostream_type&
+ operator<<(ios_base& (*__pf) (ios_base&))
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 60. What is a formatted input function?
+ // The inserters for manipulators are *not* formatted output functions.
+ __pf(*this);
+ return *this;
+ }
+ ///@}
+
+ ///@{
+ /**
+ * @name Inserters
+ *
+ * All the @c operator<< functions (aka <em>formatted output
+ * functions</em>) have some common behavior. Each starts by
+ * constructing a temporary object of type std::basic_ostream::sentry.
+ * This can have several effects, concluding with the setting of a
+ * status flag; see the sentry documentation for more.
+ *
+ * If the sentry status is good, the function tries to generate
+ * whatever data is appropriate for the type of the argument.
+ *
+ * If an exception is thrown during insertion, ios_base::badbit
+ * will be turned on in the stream's error state without causing an
+ * ios_base::failure to be thrown. The original exception will then
+ * be rethrown.
+ */
+
+ ///@{
+ /**
+ * @brief Integer arithmetic inserters
+ * @param __n A variable of builtin integral type.
+ * @return @c *this if successful
+ *
+ * These functions use the stream's current locale (specifically, the
+ * @c num_get facet) to perform numeric formatting.
+ */
+ __ostream_type&
+ operator<<(long __n)
+ { return _M_insert(__n); }
+
+ __ostream_type&
+ operator<<(unsigned long __n)
+ { return _M_insert(__n); }
+
+ __ostream_type&
+ operator<<(bool __n)
+ { return _M_insert(__n); }
+
+ __ostream_type&
+ operator<<(short __n);
+
+ __ostream_type&
+ operator<<(unsigned short __n)
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 117. basic_ostream uses nonexistent num_put member functions.
+ return _M_insert(static_cast<unsigned long>(__n));
+ }
+
+ __ostream_type&
+ operator<<(int __n);
+
+ __ostream_type&
+ operator<<(unsigned int __n)
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 117. basic_ostream uses nonexistent num_put member functions.
+ return _M_insert(static_cast<unsigned long>(__n));
+ }
+
+#ifdef _GLIBCXX_USE_LONG_LONG
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wlong-long"
+ __ostream_type&
+ operator<<(long long __n)
+ { return _M_insert(__n); }
+
+ __ostream_type&
+ operator<<(unsigned long long __n)
+ { return _M_insert(__n); }
+#pragma GCC diagnostic pop
+#endif
+ ///@}
+
+ ///@{
+ /**
+ * @brief Floating point arithmetic inserters
+ * @param __f A variable of builtin floating point type.
+ * @return @c *this if successful
+ *
+ * These functions use the stream's current locale (specifically, the
+ * @c num_get facet) to perform numeric formatting.
+ */
+ __ostream_type&
+ operator<<(double __f)
+ { return _M_insert(__f); }
+
+ __ostream_type&
+ operator<<(float __f)
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 117. basic_ostream uses nonexistent num_put member functions.
+ return _M_insert(_S_cast_flt<double>(__f));
+ }
+
+ __ostream_type&
+ operator<<(long double __f)
+ { return _M_insert(__f); }
+ ///@}
+
+#if defined(__STDCPP_FLOAT16_T__) && defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
+ __attribute__((__always_inline__))
+ __ostream_type&
+ operator<<(_Float16 __f)
+ {
+ return _M_insert(_S_cast_flt<double>(__f));
+ }
+#endif
+
+#if defined(__STDCPP_FLOAT32_T__) && defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
+ __attribute__((__always_inline__))
+ __ostream_type&
+ operator<<(_Float32 __f)
+ {
+ return _M_insert(_S_cast_flt<double>(__f));
+ }
+#endif
+
+#if defined(__STDCPP_FLOAT64_T__) && defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
+ __attribute__((__always_inline__))
+ __ostream_type&
+ operator<<(_Float64 __f)
+ {
+ return _M_insert(_S_cast_flt<double>(__f));
+ }
+#endif
+
+#if defined(__STDCPP_FLOAT128_T__) &&
defined(_GLIBCXX_LDOUBLE_IS_IEEE_BINARY128)
+ __attribute__((__always_inline__))
+ __ostream_type&
+ operator<<(_Float128 __f)
+ {
+ return _M_insert(_S_cast_flt<long double>(__f));
+ }
+#endif
+
+#if defined(__STDCPP_BFLOAT16_T__) && defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
+ __attribute__((__always_inline__))
+ __ostream_type&
+ operator<<(__gnu_cxx::__bfloat16_t __f)
+ {
+ return _M_insert(_S_cast_flt<double>(__f));
+ }
+#endif
+
+ /**
+ * @brief Pointer arithmetic inserters
+ * @param __p A variable of pointer type.
+ * @return @c *this if successful
+ *
+ * These functions use the stream's current locale (specifically, the
+ * @c num_get facet) to perform numeric formatting.
+ */
+ __ostream_type&
+ operator<<(const void* __p)
+ { return _M_insert(__p); }
+
+#if __cplusplus >= 201703L
+ __ostream_type&
+ operator<<(nullptr_t)
+ { return *this << "nullptr"; }
+#endif
+
+#if __cplusplus > 202002L
+ __attribute__((__always_inline__))
+ __ostream_type&
+ operator<<(const volatile void* __p)
+ { return _M_insert(const_cast<const void*>(__p)); }
+#endif
+
+ /**
+ * @brief Extracting from another streambuf.
+ * @param __sb A pointer to a streambuf
+ *
+ * This function behaves like one of the basic arithmetic extractors,
+ * in that it also constructs a sentry object and has the same error
+ * handling behavior.
+ *
+ * If @p __sb is NULL, the stream will set failbit in its error state.
+ *
+ * Characters are extracted from @p __sb and inserted into @c *this
+ * until one of the following occurs:
+ *
+ * - the input stream reaches end-of-file,
+ * - insertion into the output sequence fails (in this case, the
+ * character that would have been inserted is not extracted), or
+ * - an exception occurs while getting a character from @p __sb, which
+ * sets failbit in the error state
+ *
+ * If the function inserts no characters, failbit is set.
+ */
+ __ostream_type&
+ operator<<(__streambuf_type* __sb);
+ ///@}
+
+ ///@{
+ /**
+ * @name Unformatted Output Functions
+ *
+ * All the unformatted output functions have some common behavior.
+ * Each starts by constructing a temporary object of type
+ * std::basic_ostream::sentry. This has several effects, concluding
+ * with the setting of a status flag; see the sentry documentation
+ * for more.
+ *
+ * If the sentry status is good, the function tries to generate
+ * whatever data is appropriate for the type of the argument.
+ *
+ * If an exception is thrown during insertion, ios_base::badbit
+ * will be turned on in the stream's error state. If badbit is on in
+ * the stream's exceptions mask, the exception will be rethrown
+ * without completing its actions.
+ */
+
+ /**
+ * @brief Simple insertion.
+ * @param __c The character to insert.
+ * @return *this
+ *
+ * Tries to insert @p __c.
+ *
+ * @note This function is not overloaded on signed char and
+ * unsigned char.
+ */
+ __ostream_type&
+ put(char_type __c);
+
+ /**
+ * @brief Character string insertion.
+ * @param __s The array to insert.
+ * @param __n Maximum number of characters to insert.
+ * @return *this
+ *
+ * Characters are copied from @p __s and inserted into the stream until
+ * one of the following happens:
+ *
+ * - @p __n characters are inserted
+ * - inserting into the output sequence fails (in this case, badbit
+ * will be set in the stream's error state)
+ *
+ * @note This function is not overloaded on signed char and
+ * unsigned char.
+ */
+ __ostream_type&
+ write(const char_type* __s, streamsize __n);
+ ///@}
+
+ /**
+ * @brief Synchronizing the stream buffer.
+ * @return *this
+ *
+ * If @c rdbuf() is a null pointer, changes nothing.
+ *
+ * Otherwise, calls @c rdbuf()->pubsync(), and if that returns -1,
+ * sets badbit.
+ */
+ __ostream_type&
+ flush();
+
+ /**
+ * @brief Getting the current write position.
+ * @return A file position object.
+ *
+ * If @c fail() is not false, returns @c pos_type(-1) to indicate
+ * failure. Otherwise returns @c rdbuf()->pubseekoff(0,cur,out).
+ */
+ pos_type
+ tellp();
+
+ /**
+ * @brief Changing the current write position.
+ * @param __pos A file position object.
+ * @return *this
+ *
+ * If @c fail() is not true, calls @c rdbuf()->pubseekpos(pos). If
+ * that function fails, sets failbit.
+ */
+ __ostream_type&
+ seekp(pos_type);
+
+ /**
+ * @brief Changing the current write position.
+ * @param __off A file offset object.
+ * @param __dir The direction in which to seek.
+ * @return *this
+ *
+ * If @c fail() is not true, calls @c rdbuf()->pubseekoff(off,dir).
+ * If that function fails, sets failbit.
+ */
+ __ostream_type&
+ seekp(off_type, ios_base::seekdir);
+
+ protected:
+ basic_ostream()
+ { this->init(0); }
+
+#if __cplusplus >= 201103L
+ // Non-standard constructor that does not call init()
+ basic_ostream(basic_iostream<_CharT, _Traits>&) { }
+
+ basic_ostream(const basic_ostream&) = delete;
+
+ basic_ostream(basic_ostream&& __rhs)
+ : __ios_type()
+ { __ios_type::move(__rhs); }
+
+ // 27.7.3.3 Assign/swap
+
+ basic_ostream& operator=(const basic_ostream&) = delete;
+
+ basic_ostream&
+ operator=(basic_ostream&& __rhs)
+ {
+ swap(__rhs);
+ return *this;
+ }
+
+ void
+ swap(basic_ostream& __rhs)
+ { __ios_type::swap(__rhs); }
+#endif
+
+ template<typename _ValueT>
+ __ostream_type&
+ _M_insert(_ValueT __v);
+
+ private:
+#if !_GLIBCXX_INLINE_VERSION
+ void
+ _M_write(const char_type* __s, streamsize __n)
+ { std::__ostream_insert(*this, __s, __n); }
+#endif
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wc++17-extensions" // for if-constexpr
+ template<typename _To, typename _From>
+ static _To
+ _S_cast_flt(_From __f)
+ {
+ _To __d = static_cast<_To>(__f);
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 4101: LWG 117 loses the sign for negative NaN on some arches.
+#if defined __riscv
+ _To __sign;
+#if __cpp_constexpr && __has_builtin(__builtin_bit_cast)
+ if constexpr (sizeof(__f) == sizeof(short))
+ __sign = static_cast<_To>(__builtin_bit_cast(short, __f));
+ else if constexpr (sizeof(__f) == sizeof(int))
+ __sign = static_cast<_To>(__builtin_bit_cast(int, __f));
+ else if constexpr (sizeof(__f) == sizeof(long long))
+ __sign = static_cast<_To>(__builtin_bit_cast(long long, __f));
+ else
+#endif
+ __sign = __builtin_signbit(__f) ? _To(-1.0) : _To(+1.0);
+
+ if _GLIBCXX17_CONSTEXPR (__is_same(_To, double))
+ __d = __builtin_copysign(__d, __sign);
+ else if _GLIBCXX17_CONSTEXPR (__is_same(_To, long double))
+ __d = __builtin_copysignl(__d, __sign);
+#endif
+ return __d;
+ }
+#pragma GCC diagnostic pop
+ };
+
+ /**
+ * @brief Performs setup work for output streams.
+ *
+ * Objects of this class are created before all of the standard
+ * inserters are run. It is responsible for <em>exception-safe prefix and
+ * suffix operations</em>.
+ */
+ template <typename _CharT, typename _Traits>
+ class basic_ostream<_CharT, _Traits>::sentry
+ {
+ // Data Members.
+ bool _M_ok;
+ basic_ostream<_CharT, _Traits>& _M_os;
+
+ public:
+ /**
+ * @brief The constructor performs preparatory work.
+ * @param __os The output stream to guard.
+ *
+ * If the stream state is good (@a __os.good() is true), then if the
+ * stream is tied to another output stream, @c is.tie()->flush()
+ * is called to synchronize the output sequences.
+ *
+ * If the stream state is still good, then the sentry state becomes
+ * true (@a okay).
+ */
+ explicit
+ sentry(basic_ostream<_CharT, _Traits>& __os);
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+ /**
+ * @brief Possibly flushes the stream.
+ *
+ * If @c ios_base::unitbuf is set in @c os.flags(), and
+ * @c std::uncaught_exception() is true, the sentry destructor calls
+ * @c flush() on the output stream.
+ */
+ ~sentry()
+ {
+ // XXX MT
+ if (bool(_M_os.flags() & ios_base::unitbuf) && !uncaught_exception())
+ {
+ // Can't call flush directly or else will get into recursive lock.
+ if (_M_os.rdbuf() && _M_os.rdbuf()->pubsync() == -1)
+ _M_os.setstate(ios_base::badbit);
+ }
+ }
+#pragma GCC diagnostic pop
+
+ /**
+ * @brief Quick status checking.
+ * @return The sentry state.
+ *
+ * For ease of use, sentries may be converted to booleans. The
+ * return value is that of the sentry state (true == okay).
+ */
+#if __cplusplus >= 201103L
+ explicit
+#endif
+ operator bool() const
+ { return _M_ok; }
+ };
+
+ ///@{
+ /**
+ * @brief Character inserters
+ * @param __out An output stream.
+ * @param __c A character.
+ * @return out
+ *
+ * Behaves like one of the formatted arithmetic inserters described in
+ * std::basic_ostream. After constructing a sentry object with good
+ * status, this function inserts a single character and any required
+ * padding (as determined by [22.2.2.2.2]). @c __out.width(0) is then
+ * called.
+ *
+ * If @p __c is of type @c char and the character type of the stream is not
+ * @c char, the character is widened before insertion.
+ */
+ template<typename _CharT, typename _Traits>
+ inline basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
+ {
+ if (__out.width() != 0)
+ return __ostream_insert(__out, &__c, 1);
+ __out.put(__c);
+ return __out;
+ }
+
+ template<typename _CharT, typename _Traits>
+ inline basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
+ { return (__out << __out.widen(__c)); }
+
+ // Specialization
+ template<typename _Traits>
+ inline basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>& __out, char __c)
+ {
+ if (__out.width() != 0)
+ return __ostream_insert(__out, &__c, 1);
+ __out.put(__c);
+ return __out;
+ }
+
+ // Signed and unsigned
+ template<typename _Traits>
+ inline basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>& __out, signed char __c)
+ { return (__out << static_cast<char>(__c)); }
+
+ template<typename _Traits>
+ inline basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c)
+ { return (__out << static_cast<char>(__c)); }
+
+#if __cplusplus > 201703L
+ // The following deleted overloads prevent formatting character values as
+ // numeric values.
+
+ template<typename _Traits>
+ basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>&, wchar_t) = delete;
+
+#ifdef _GLIBCXX_USE_CHAR8_T
+ template<typename _Traits>
+ basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>&, char8_t) = delete;
+#endif
+
+ template<typename _Traits>
+ basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>&, char16_t) = delete;
+
+ template<typename _Traits>
+ basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>&, char32_t) = delete;
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+#ifdef _GLIBCXX_USE_CHAR8_T
+ template<typename _Traits>
+ basic_ostream<wchar_t, _Traits>&
+ operator<<(basic_ostream<wchar_t, _Traits>&, char8_t) = delete;
+#endif // _GLIBCXX_USE_CHAR8_T
+
+ template<typename _Traits>
+ basic_ostream<wchar_t, _Traits>&
+ operator<<(basic_ostream<wchar_t, _Traits>&, char16_t) = delete;
+
+ template<typename _Traits>
+ basic_ostream<wchar_t, _Traits>&
+ operator<<(basic_ostream<wchar_t, _Traits>&, char32_t) = delete;
+#endif // _GLIBCXX_USE_WCHAR_T
+#endif // C++20
+ ///@}
+
+ ///@{
+ /**
+ * @brief String inserters
+ * @param __out An output stream.
+ * @param __s A character string.
+ * @return out
+ * @pre @p __s must be a non-NULL pointer
+ *
+ * Behaves like one of the formatted arithmetic inserters described in
+ * std::basic_ostream. After constructing a sentry object with good
+ * status, this function inserts @c traits::length(__s) characters starting
+ * at @p __s, widened if necessary, followed by any required padding (as
+ * determined by [22.2.2.2.2]). @c __out.width(0) is then called.
+ */
+ template<typename _CharT, typename _Traits>
+ inline basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
+ {
+ if (!__s)
+ __out.setstate(ios_base::badbit);
+ else
+ __ostream_insert(__out, __s,
+ static_cast<streamsize>(_Traits::length(__s)));
+ return __out;
+ }
+
+ template<typename _CharT, typename _Traits>
+ basic_ostream<_CharT, _Traits> &
+ operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s);
+
+ // Partial specializations
+ template<typename _Traits>
+ inline basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
+ {
+ if (!__s)
+ __out.setstate(ios_base::badbit);
+ else
+ __ostream_insert(__out, __s,
+ static_cast<streamsize>(_Traits::length(__s)));
+ return __out;
+ }
+
+ // Signed and unsigned
+ template<typename _Traits>
+ inline basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s)
+ { return (__out << reinterpret_cast<const char*>(__s)); }
+
+ template<typename _Traits>
+ inline basic_ostream<char, _Traits> &
+ operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s)
+ { return (__out << reinterpret_cast<const char*>(__s)); }
+
+#if __cplusplus > 201703L
+ // The following deleted overloads prevent formatting strings as
+ // pointer values.
+
+ template<typename _Traits>
+ basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>&, const wchar_t*) = delete;
+
+#ifdef _GLIBCXX_USE_CHAR8_T
+ template<typename _Traits>
+ basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>&, const char8_t*) = delete;
+#endif // _GLIBCXX_USE_CHAR8_T
+
+ template<typename _Traits>
+ basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>&, const char16_t*) = delete;
+
+ template<typename _Traits>
+ basic_ostream<char, _Traits>&
+ operator<<(basic_ostream<char, _Traits>&, const char32_t*) = delete;
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+#ifdef _GLIBCXX_USE_CHAR8_T
+ template<typename _Traits>
+ basic_ostream<wchar_t, _Traits>&
+ operator<<(basic_ostream<wchar_t, _Traits>&, const char8_t*) = delete;
+#endif
+
+ template<typename _Traits>
+ basic_ostream<wchar_t, _Traits>&
+ operator<<(basic_ostream<wchar_t, _Traits>&, const char16_t*) = delete;
+
+ template<typename _Traits>
+ basic_ostream<wchar_t, _Traits>&
+ operator<<(basic_ostream<wchar_t, _Traits>&, const char32_t*) = delete;
+#endif // _GLIBCXX_USE_WCHAR_T
+#endif // C++20
+ ///@}
+
+#if __cplusplus >= 201103L
+ // C++11 27.7.3.9 Rvalue stream insertion [ostream.rvalue]
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 1203. More useful rvalue stream insertion
+
+#if __cpp_concepts >= 201907L && __glibcxx_type_trait_variable_templates
+ // Use concepts if possible because they're cheaper to evaluate.
+ template<typename _Tp>
+ concept __derived_from_ios_base = is_class_v<_Tp>
+ && (!is_same_v<_Tp, ios_base>)
+ && requires (_Tp* __t, ios_base* __b) { __b = __t; };
+
+ template<typename _Os, typename _Tp>
+ requires __derived_from_ios_base<_Os>
+ && requires (_Os& __os, const _Tp& __t) { __os << __t; }
+ using __rvalue_stream_insertion_t = _Os&&;
+#else
+ template<typename _Tp>
+ using _Require_derived_from_ios_base
+ = _Require<is_class<_Tp>, __not_<is_same<_Tp, ios_base>>,
+ is_convertible<typename add_pointer<_Tp>::type, ios_base*>>;
+
+ template<typename _Os, typename _Tp,
+ typename = _Require_derived_from_ios_base<_Os>,
+ typename
+ = decltype(std::declval<_Os&>() << std::declval<const _Tp&>())>
+ using __rvalue_stream_insertion_t = _Os&&;
+#endif
+
+ /**
+ * @brief Generic inserter for rvalue stream
+ * @param __os An input stream.
+ * @param __x A reference to the object being inserted.
+ * @return __os
+ *
+ * This is just a forwarding function to allow insertion to
+ * rvalue streams since they won't bind to the inserter functions
+ * that take an lvalue reference.
+ */
+ template<typename _Ostream, typename _Tp>
+ inline __rvalue_stream_insertion_t<_Ostream, _Tp>
+ operator<<(_Ostream&& __os, const _Tp& __x)
+ {
+ __os << __x;
+ return std::move(__os);
+ }
+#endif // C++11
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif /* _GLIBCXX_OSTREAM_H */
diff --git a/libstdc++-v3/include/bits/unique_ptr.h
b/libstdc++-v3/include/bits/unique_ptr.h
index b11c59f303f4..746989dfe47e 100644
--- a/libstdc++-v3/include/bits/unique_ptr.h
+++ b/libstdc++-v3/include/bits/unique_ptr.h
@@ -40,7 +40,7 @@
#if __cplusplus >= 202002L
# include <compare>
# if _GLIBCXX_HOSTED
-# include <ostream>
+# include <bits/ostream.h>
# endif
#endif
diff --git a/libstdc++-v3/include/std/ostream b/libstdc++-v3/include/std/ostream
index d6b366728dfd..644e568e8829 100644
--- a/libstdc++-v3/include/std/ostream
+++ b/libstdc++-v3/include/std/ostream
@@ -39,8 +39,7 @@
#include <bits/requires_hosted.h> // iostreams
-#include <ios>
-#include <bits/ostream_insert.h>
+#include <bits/ostream.h>
#if __cplusplus > 202002L
# include <format>
#endif
@@ -52,716 +51,6 @@ namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
- /**
- * @brief Template class basic_ostream.
- * @ingroup io
- *
- * @tparam _CharT Type of character stream.
- * @tparam _Traits Traits for character type, defaults to
- * char_traits<_CharT>.
- *
- * This is the base class for all output streams. It provides text
- * formatting of all builtin types, and communicates with any class
- * derived from basic_streambuf to do the actual output.
- */
- template<typename _CharT, typename _Traits>
- class basic_ostream : virtual public basic_ios<_CharT, _Traits>
- {
- public:
- // Types (inherited from basic_ios):
- typedef _CharT char_type;
- typedef typename _Traits::int_type int_type;
- typedef typename _Traits::pos_type pos_type;
- typedef typename _Traits::off_type off_type;
- typedef _Traits traits_type;
-
- // Non-standard Types:
- typedef basic_streambuf<_CharT, _Traits>
__streambuf_type;
- typedef basic_ios<_CharT, _Traits> __ios_type;
- typedef basic_ostream<_CharT, _Traits> __ostream_type;
- typedef num_put<_CharT, ostreambuf_iterator<_CharT, _Traits> >
- __num_put_type;
- typedef ctype<_CharT> __ctype_type;
-
- /**
- * @brief Base constructor.
- *
- * This ctor is almost never called by the user directly, rather from
- * derived classes' initialization lists, which pass a pointer to
- * their own stream buffer.
- */
- explicit
- basic_ostream(__streambuf_type* __sb)
- { this->init(__sb); }
-
- /**
- * @brief Base destructor.
- *
- * This does very little apart from providing a virtual base dtor.
- */
- virtual
- ~basic_ostream() { }
-
- /// Safe prefix/suffix operations.
- class sentry;
- friend class sentry;
-
- ///@{
- /**
- * @brief Interface for manipulators.
- *
- * Manipulators such as @c std::endl and @c std::hex use these
- * functions in constructs like "std::cout << std::endl". For more
- * information, see the iomanip header.
- */
- __ostream_type&
- operator<<(__ostream_type& (*__pf)(__ostream_type&))
- {
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // DR 60. What is a formatted input function?
- // The inserters for manipulators are *not* formatted output functions.
- return __pf(*this);
- }
-
- __ostream_type&
- operator<<(__ios_type& (*__pf)(__ios_type&))
- {
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // DR 60. What is a formatted input function?
- // The inserters for manipulators are *not* formatted output functions.
- __pf(*this);
- return *this;
- }
-
- __ostream_type&
- operator<<(ios_base& (*__pf) (ios_base&))
- {
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // DR 60. What is a formatted input function?
- // The inserters for manipulators are *not* formatted output functions.
- __pf(*this);
- return *this;
- }
- ///@}
-
- ///@{
- /**
- * @name Inserters
- *
- * All the @c operator<< functions (aka <em>formatted output
- * functions</em>) have some common behavior. Each starts by
- * constructing a temporary object of type std::basic_ostream::sentry.
- * This can have several effects, concluding with the setting of a
- * status flag; see the sentry documentation for more.
- *
- * If the sentry status is good, the function tries to generate
- * whatever data is appropriate for the type of the argument.
- *
- * If an exception is thrown during insertion, ios_base::badbit
- * will be turned on in the stream's error state without causing an
- * ios_base::failure to be thrown. The original exception will then
- * be rethrown.
- */
-
- ///@{
- /**
- * @brief Integer arithmetic inserters
- * @param __n A variable of builtin integral type.
- * @return @c *this if successful
- *
- * These functions use the stream's current locale (specifically, the
- * @c num_get facet) to perform numeric formatting.
- */
- __ostream_type&
- operator<<(long __n)
- { return _M_insert(__n); }
-
- __ostream_type&
- operator<<(unsigned long __n)
- { return _M_insert(__n); }
-
- __ostream_type&
- operator<<(bool __n)
- { return _M_insert(__n); }
-
- __ostream_type&
- operator<<(short __n);
-
- __ostream_type&
- operator<<(unsigned short __n)
- {
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 117. basic_ostream uses nonexistent num_put member functions.
- return _M_insert(static_cast<unsigned long>(__n));
- }
-
- __ostream_type&
- operator<<(int __n);
-
- __ostream_type&
- operator<<(unsigned int __n)
- {
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 117. basic_ostream uses nonexistent num_put member functions.
- return _M_insert(static_cast<unsigned long>(__n));
- }
-
-#ifdef _GLIBCXX_USE_LONG_LONG
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wlong-long"
- __ostream_type&
- operator<<(long long __n)
- { return _M_insert(__n); }
-
- __ostream_type&
- operator<<(unsigned long long __n)
- { return _M_insert(__n); }
-#pragma GCC diagnostic pop
-#endif
- ///@}
-
- ///@{
- /**
- * @brief Floating point arithmetic inserters
- * @param __f A variable of builtin floating point type.
- * @return @c *this if successful
- *
- * These functions use the stream's current locale (specifically, the
- * @c num_get facet) to perform numeric formatting.
- */
- __ostream_type&
- operator<<(double __f)
- { return _M_insert(__f); }
-
- __ostream_type&
- operator<<(float __f)
- {
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 117. basic_ostream uses nonexistent num_put member functions.
- return _M_insert(_S_cast_flt<double>(__f));
- }
-
- __ostream_type&
- operator<<(long double __f)
- { return _M_insert(__f); }
- ///@}
-
-#if defined(__STDCPP_FLOAT16_T__) && defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
- __attribute__((__always_inline__))
- __ostream_type&
- operator<<(_Float16 __f)
- {
- return _M_insert(_S_cast_flt<double>(__f));
- }
-#endif
-
-#if defined(__STDCPP_FLOAT32_T__) && defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
- __attribute__((__always_inline__))
- __ostream_type&
- operator<<(_Float32 __f)
- {
- return _M_insert(_S_cast_flt<double>(__f));
- }
-#endif
-
-#if defined(__STDCPP_FLOAT64_T__) && defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
- __attribute__((__always_inline__))
- __ostream_type&
- operator<<(_Float64 __f)
- {
- return _M_insert(_S_cast_flt<double>(__f));
- }
-#endif
-
-#if defined(__STDCPP_FLOAT128_T__) &&
defined(_GLIBCXX_LDOUBLE_IS_IEEE_BINARY128)
- __attribute__((__always_inline__))
- __ostream_type&
- operator<<(_Float128 __f)
- {
- return _M_insert(_S_cast_flt<long double>(__f));
- }
-#endif
-
-#if defined(__STDCPP_BFLOAT16_T__) && defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
- __attribute__((__always_inline__))
- __ostream_type&
- operator<<(__gnu_cxx::__bfloat16_t __f)
- {
- return _M_insert(_S_cast_flt<double>(__f));
- }
-#endif
-
- /**
- * @brief Pointer arithmetic inserters
- * @param __p A variable of pointer type.
- * @return @c *this if successful
- *
- * These functions use the stream's current locale (specifically, the
- * @c num_get facet) to perform numeric formatting.
- */
- __ostream_type&
- operator<<(const void* __p)
- { return _M_insert(__p); }
-
-#if __cplusplus >= 201703L
- __ostream_type&
- operator<<(nullptr_t)
- { return *this << "nullptr"; }
-#endif
-
-#if __cplusplus > 202002L
- __attribute__((__always_inline__))
- __ostream_type&
- operator<<(const volatile void* __p)
- { return _M_insert(const_cast<const void*>(__p)); }
-#endif
-
- /**
- * @brief Extracting from another streambuf.
- * @param __sb A pointer to a streambuf
- *
- * This function behaves like one of the basic arithmetic extractors,
- * in that it also constructs a sentry object and has the same error
- * handling behavior.
- *
- * If @p __sb is NULL, the stream will set failbit in its error state.
- *
- * Characters are extracted from @p __sb and inserted into @c *this
- * until one of the following occurs:
- *
- * - the input stream reaches end-of-file,
- * - insertion into the output sequence fails (in this case, the
- * character that would have been inserted is not extracted), or
- * - an exception occurs while getting a character from @p __sb, which
- * sets failbit in the error state
- *
- * If the function inserts no characters, failbit is set.
- */
- __ostream_type&
- operator<<(__streambuf_type* __sb);
- ///@}
-
- ///@{
- /**
- * @name Unformatted Output Functions
- *
- * All the unformatted output functions have some common behavior.
- * Each starts by constructing a temporary object of type
- * std::basic_ostream::sentry. This has several effects, concluding
- * with the setting of a status flag; see the sentry documentation
- * for more.
- *
- * If the sentry status is good, the function tries to generate
- * whatever data is appropriate for the type of the argument.
- *
- * If an exception is thrown during insertion, ios_base::badbit
- * will be turned on in the stream's error state. If badbit is on in
- * the stream's exceptions mask, the exception will be rethrown
- * without completing its actions.
- */
-
- /**
- * @brief Simple insertion.
- * @param __c The character to insert.
- * @return *this
- *
- * Tries to insert @p __c.
- *
- * @note This function is not overloaded on signed char and
- * unsigned char.
- */
- __ostream_type&
- put(char_type __c);
-
- /**
- * @brief Character string insertion.
- * @param __s The array to insert.
- * @param __n Maximum number of characters to insert.
- * @return *this
- *
- * Characters are copied from @p __s and inserted into the stream until
- * one of the following happens:
- *
- * - @p __n characters are inserted
- * - inserting into the output sequence fails (in this case, badbit
- * will be set in the stream's error state)
- *
- * @note This function is not overloaded on signed char and
- * unsigned char.
- */
- __ostream_type&
- write(const char_type* __s, streamsize __n);
- ///@}
-
- /**
- * @brief Synchronizing the stream buffer.
- * @return *this
- *
- * If @c rdbuf() is a null pointer, changes nothing.
- *
- * Otherwise, calls @c rdbuf()->pubsync(), and if that returns -1,
- * sets badbit.
- */
- __ostream_type&
- flush();
-
- /**
- * @brief Getting the current write position.
- * @return A file position object.
- *
- * If @c fail() is not false, returns @c pos_type(-1) to indicate
- * failure. Otherwise returns @c rdbuf()->pubseekoff(0,cur,out).
- */
- pos_type
- tellp();
-
- /**
- * @brief Changing the current write position.
- * @param __pos A file position object.
- * @return *this
- *
- * If @c fail() is not true, calls @c rdbuf()->pubseekpos(pos). If
- * that function fails, sets failbit.
- */
- __ostream_type&
- seekp(pos_type);
-
- /**
- * @brief Changing the current write position.
- * @param __off A file offset object.
- * @param __dir The direction in which to seek.
- * @return *this
- *
- * If @c fail() is not true, calls @c rdbuf()->pubseekoff(off,dir).
- * If that function fails, sets failbit.
- */
- __ostream_type&
- seekp(off_type, ios_base::seekdir);
-
- protected:
- basic_ostream()
- { this->init(0); }
-
-#if __cplusplus >= 201103L
- // Non-standard constructor that does not call init()
- basic_ostream(basic_iostream<_CharT, _Traits>&) { }
-
- basic_ostream(const basic_ostream&) = delete;
-
- basic_ostream(basic_ostream&& __rhs)
- : __ios_type()
- { __ios_type::move(__rhs); }
-
- // 27.7.3.3 Assign/swap
-
- basic_ostream& operator=(const basic_ostream&) = delete;
-
- basic_ostream&
- operator=(basic_ostream&& __rhs)
- {
- swap(__rhs);
- return *this;
- }
-
- void
- swap(basic_ostream& __rhs)
- { __ios_type::swap(__rhs); }
-#endif
-
- template<typename _ValueT>
- __ostream_type&
- _M_insert(_ValueT __v);
-
- private:
-#if !_GLIBCXX_INLINE_VERSION
- void
- _M_write(const char_type* __s, streamsize __n)
- { std::__ostream_insert(*this, __s, __n); }
-#endif
-
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wc++17-extensions" // for if-constexpr
- template<typename _To, typename _From>
- static _To
- _S_cast_flt(_From __f)
- {
- _To __d = static_cast<_To>(__f);
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 4101: LWG 117 loses the sign for negative NaN on some arches.
-#if defined __riscv
- _To __sign;
-#if __cpp_constexpr && __has_builtin(__builtin_bit_cast)
- if constexpr (sizeof(__f) == sizeof(short))
- __sign = static_cast<_To>(__builtin_bit_cast(short, __f));
- else if constexpr (sizeof(__f) == sizeof(int))
- __sign = static_cast<_To>(__builtin_bit_cast(int, __f));
- else if constexpr (sizeof(__f) == sizeof(long long))
- __sign = static_cast<_To>(__builtin_bit_cast(long long, __f));
- else
-#endif
- __sign = __builtin_signbit(__f) ? _To(-1.0) : _To(+1.0);
-
- if _GLIBCXX17_CONSTEXPR (__is_same(_To, double))
- __d = __builtin_copysign(__d, __sign);
- else if _GLIBCXX17_CONSTEXPR (__is_same(_To, long double))
- __d = __builtin_copysignl(__d, __sign);
-#endif
- return __d;
- }
- };
-#pragma GCC diagnostic pop
-
- /**
- * @brief Performs setup work for output streams.
- *
- * Objects of this class are created before all of the standard
- * inserters are run. It is responsible for <em>exception-safe prefix and
- * suffix operations</em>.
- */
- template <typename _CharT, typename _Traits>
- class basic_ostream<_CharT, _Traits>::sentry
- {
- // Data Members.
- bool _M_ok;
- basic_ostream<_CharT, _Traits>& _M_os;
-
- public:
- /**
- * @brief The constructor performs preparatory work.
- * @param __os The output stream to guard.
- *
- * If the stream state is good (@a __os.good() is true), then if the
- * stream is tied to another output stream, @c is.tie()->flush()
- * is called to synchronize the output sequences.
- *
- * If the stream state is still good, then the sentry state becomes
- * true (@a okay).
- */
- explicit
- sentry(basic_ostream<_CharT, _Traits>& __os);
-
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
- /**
- * @brief Possibly flushes the stream.
- *
- * If @c ios_base::unitbuf is set in @c os.flags(), and
- * @c std::uncaught_exception() is true, the sentry destructor calls
- * @c flush() on the output stream.
- */
- ~sentry()
- {
- // XXX MT
- if (bool(_M_os.flags() & ios_base::unitbuf) && !uncaught_exception())
- {
- // Can't call flush directly or else will get into recursive lock.
- if (_M_os.rdbuf() && _M_os.rdbuf()->pubsync() == -1)
- _M_os.setstate(ios_base::badbit);
- }
- }
-#pragma GCC diagnostic pop
-
- /**
- * @brief Quick status checking.
- * @return The sentry state.
- *
- * For ease of use, sentries may be converted to booleans. The
- * return value is that of the sentry state (true == okay).
- */
-#if __cplusplus >= 201103L
- explicit
-#endif
- operator bool() const
- { return _M_ok; }
- };
-
- ///@{
- /**
- * @brief Character inserters
- * @param __out An output stream.
- * @param __c A character.
- * @return out
- *
- * Behaves like one of the formatted arithmetic inserters described in
- * std::basic_ostream. After constructing a sentry object with good
- * status, this function inserts a single character and any required
- * padding (as determined by [22.2.2.2.2]). @c __out.width(0) is then
- * called.
- *
- * If @p __c is of type @c char and the character type of the stream is not
- * @c char, the character is widened before insertion.
- */
- template<typename _CharT, typename _Traits>
- inline basic_ostream<_CharT, _Traits>&
- operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
- {
- if (__out.width() != 0)
- return __ostream_insert(__out, &__c, 1);
- __out.put(__c);
- return __out;
- }
-
- template<typename _CharT, typename _Traits>
- inline basic_ostream<_CharT, _Traits>&
- operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
- { return (__out << __out.widen(__c)); }
-
- // Specialization
- template<typename _Traits>
- inline basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>& __out, char __c)
- {
- if (__out.width() != 0)
- return __ostream_insert(__out, &__c, 1);
- __out.put(__c);
- return __out;
- }
-
- // Signed and unsigned
- template<typename _Traits>
- inline basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>& __out, signed char __c)
- { return (__out << static_cast<char>(__c)); }
-
- template<typename _Traits>
- inline basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c)
- { return (__out << static_cast<char>(__c)); }
-
-#if __cplusplus > 201703L
- // The following deleted overloads prevent formatting character values as
- // numeric values.
-
- template<typename _Traits>
- basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>&, wchar_t) = delete;
-
-#ifdef _GLIBCXX_USE_CHAR8_T
- template<typename _Traits>
- basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>&, char8_t) = delete;
-#endif
-
- template<typename _Traits>
- basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>&, char16_t) = delete;
-
- template<typename _Traits>
- basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>&, char32_t) = delete;
-
-#ifdef _GLIBCXX_USE_WCHAR_T
-#ifdef _GLIBCXX_USE_CHAR8_T
- template<typename _Traits>
- basic_ostream<wchar_t, _Traits>&
- operator<<(basic_ostream<wchar_t, _Traits>&, char8_t) = delete;
-#endif // _GLIBCXX_USE_CHAR8_T
-
- template<typename _Traits>
- basic_ostream<wchar_t, _Traits>&
- operator<<(basic_ostream<wchar_t, _Traits>&, char16_t) = delete;
-
- template<typename _Traits>
- basic_ostream<wchar_t, _Traits>&
- operator<<(basic_ostream<wchar_t, _Traits>&, char32_t) = delete;
-#endif // _GLIBCXX_USE_WCHAR_T
-#endif // C++20
- ///@}
-
- ///@{
- /**
- * @brief String inserters
- * @param __out An output stream.
- * @param __s A character string.
- * @return out
- * @pre @p __s must be a non-NULL pointer
- *
- * Behaves like one of the formatted arithmetic inserters described in
- * std::basic_ostream. After constructing a sentry object with good
- * status, this function inserts @c traits::length(__s) characters starting
- * at @p __s, widened if necessary, followed by any required padding (as
- * determined by [22.2.2.2.2]). @c __out.width(0) is then called.
- */
- template<typename _CharT, typename _Traits>
- inline basic_ostream<_CharT, _Traits>&
- operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
- {
- if (!__s)
- __out.setstate(ios_base::badbit);
- else
- __ostream_insert(__out, __s,
- static_cast<streamsize>(_Traits::length(__s)));
- return __out;
- }
-
- template<typename _CharT, typename _Traits>
- basic_ostream<_CharT, _Traits> &
- operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s);
-
- // Partial specializations
- template<typename _Traits>
- inline basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
- {
- if (!__s)
- __out.setstate(ios_base::badbit);
- else
- __ostream_insert(__out, __s,
- static_cast<streamsize>(_Traits::length(__s)));
- return __out;
- }
-
- // Signed and unsigned
- template<typename _Traits>
- inline basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s)
- { return (__out << reinterpret_cast<const char*>(__s)); }
-
- template<typename _Traits>
- inline basic_ostream<char, _Traits> &
- operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s)
- { return (__out << reinterpret_cast<const char*>(__s)); }
-
-#if __cplusplus > 201703L
- // The following deleted overloads prevent formatting strings as
- // pointer values.
-
- template<typename _Traits>
- basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>&, const wchar_t*) = delete;
-
-#ifdef _GLIBCXX_USE_CHAR8_T
- template<typename _Traits>
- basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>&, const char8_t*) = delete;
-#endif // _GLIBCXX_USE_CHAR8_T
-
- template<typename _Traits>
- basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>&, const char16_t*) = delete;
-
- template<typename _Traits>
- basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>&, const char32_t*) = delete;
-
-#ifdef _GLIBCXX_USE_WCHAR_T
-#ifdef _GLIBCXX_USE_CHAR8_T
- template<typename _Traits>
- basic_ostream<wchar_t, _Traits>&
- operator<<(basic_ostream<wchar_t, _Traits>&, const char8_t*) = delete;
-#endif
-
- template<typename _Traits>
- basic_ostream<wchar_t, _Traits>&
- operator<<(basic_ostream<wchar_t, _Traits>&, const char16_t*) = delete;
-
- template<typename _Traits>
- basic_ostream<wchar_t, _Traits>&
- operator<<(basic_ostream<wchar_t, _Traits>&, const char32_t*) = delete;
-#endif // _GLIBCXX_USE_WCHAR_T
-#endif // C++20
- ///@}
-
// Standard basic_ostream manipulators
/**
@@ -799,53 +88,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
flush(basic_ostream<_CharT, _Traits>& __os)
{ return __os.flush(); }
-#if __cplusplus >= 201103L
- // C++11 27.7.3.9 Rvalue stream insertion [ostream.rvalue]
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 1203. More useful rvalue stream insertion
-
-#if __cpp_concepts >= 201907L && __glibcxx_type_trait_variable_templates
- // Use concepts if possible because they're cheaper to evaluate.
- template<typename _Tp>
- concept __derived_from_ios_base = is_class_v<_Tp>
- && (!is_same_v<_Tp, ios_base>)
- && requires (_Tp* __t, ios_base* __b) { __b = __t; };
-
- template<typename _Os, typename _Tp>
- requires __derived_from_ios_base<_Os>
- && requires (_Os& __os, const _Tp& __t) { __os << __t; }
- using __rvalue_stream_insertion_t = _Os&&;
-#else
- template<typename _Tp>
- using _Require_derived_from_ios_base
- = _Require<is_class<_Tp>, __not_<is_same<_Tp, ios_base>>,
- is_convertible<typename add_pointer<_Tp>::type, ios_base*>>;
-
- template<typename _Os, typename _Tp,
- typename = _Require_derived_from_ios_base<_Os>,
- typename
- = decltype(std::declval<_Os&>() << std::declval<const _Tp&>())>
- using __rvalue_stream_insertion_t = _Os&&;
-#endif
-
- /**
- * @brief Generic inserter for rvalue stream
- * @param __os An input stream.
- * @param __x A reference to the object being inserted.
- * @return __os
- *
- * This is just a forwarding function to allow insertion to
- * rvalue streams since they won't bind to the inserter functions
- * that take an lvalue reference.
- */
- template<typename _Ostream, typename _Tp>
- inline __rvalue_stream_insertion_t<_Ostream, _Tp>
- operator<<(_Ostream&& __os, const _Tp& __x)
- {
- __os << __x;
- return std::move(__os);
- }
-
#ifdef __glibcxx_syncbuf // C++ >= 20 && HOSTED && CXX11ABI
template<typename _CharT, typename _Traits>
class __syncbuf_base : public basic_streambuf<_CharT, _Traits>
@@ -914,7 +156,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#endif // __glibcxx_syncbuf
#if __cpp_lib_print // C++ >= 23
-
inline void
vprint_nonunicode(ostream& __os, string_view __fmt, format_args __args)
{
@@ -1047,8 +288,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#endif // __cpp_lib_print
-#endif // C++11
-
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
--
2.47.1
