LCOV - code coverage report
Current view: top level - usr/lib/gcc/i686-pc-cygwin/4.3.2/include/c++ - ostream (source / functions) Hit Total Coverage
Test: JSBSim-Coverage-Statistics Lines: 20 31 64.5 %
Date: 2010-08-24 Functions: 8 10 80.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 6 22 27.3 %

           Branch data     Line data    Source code
       1                 :            : // Output streams -*- C++ -*-
       2                 :            : 
       3                 :            : // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
       4                 :            : // 2006, 2007, 2008
       5                 :            : // Free Software Foundation, Inc.
       6                 :            : //
       7                 :            : // This file is part of the GNU ISO C++ Library.  This library is free
       8                 :            : // software; you can redistribute it and/or modify it under the
       9                 :            : // terms of the GNU General Public License as published by the
      10                 :            : // Free Software Foundation; either version 2, or (at your option)
      11                 :            : // any later version.
      12                 :            : 
      13                 :            : // This library is distributed in the hope that it will be useful,
      14                 :            : // but WITHOUT ANY WARRANTY; without even the implied warranty of
      15                 :            : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16                 :            : // GNU General Public License for more details.
      17                 :            : 
      18                 :            : // You should have received a copy of the GNU General Public License
      19                 :            : // along with this library; see the file COPYING.  If not, write to
      20                 :            : // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
      21                 :            : // Boston, MA 02110-1301, USA.
      22                 :            : 
      23                 :            : // As a special exception, you may use this file as part of a free software
      24                 :            : // library without restriction.  Specifically, if other files instantiate
      25                 :            : // templates or use macros or inline functions from this file, or you compile
      26                 :            : // this file and link it with other files to produce an executable, this
      27                 :            : // file does not by itself cause the resulting executable to be covered by
      28                 :            : // the GNU General Public License.  This exception does not however
      29                 :            : // invalidate any other reasons why the executable file might be covered by
      30                 :            : // the GNU General Public License.
      31                 :            : 
      32                 :            : /** @file ostream
      33                 :            :  *  This is a Standard C++ Library header.
      34                 :            :  */
      35                 :            : 
      36                 :            : //
      37                 :            : // ISO C++ 14882: 27.6.2  Output streams
      38                 :            : //
      39                 :            : 
      40                 :            : #ifndef _GLIBCXX_OSTREAM
      41                 :            : #define _GLIBCXX_OSTREAM 1
      42                 :            : 
      43                 :            : #pragma GCC system_header
      44                 :            : 
      45                 :            : #include <ios>
      46                 :            : #include <bits/ostream_insert.h>
      47                 :            : 
      48                 :            : _GLIBCXX_BEGIN_NAMESPACE(std)
      49                 :            : 
      50                 :            :   // [27.6.2.1] Template class basic_ostream
      51                 :            :   /**
      52                 :            :    *  @brief  Controlling output.
      53                 :            :    *
      54                 :            :    *  This is the base class for all output streams.  It provides text
      55                 :            :    *  formatting of all builtin types, and communicates with any class
      56                 :            :    *  derived from basic_streambuf to do the actual output.
      57                 :            :   */
      58                 :            :   template<typename _CharT, typename _Traits>
      59                 :            :     class basic_ostream : virtual public basic_ios<_CharT, _Traits>
      60                 :            :     {
      61                 :            :     public:
      62                 :            :       // Types (inherited from basic_ios (27.4.4)):
      63                 :            :       typedef _CharT                                    char_type;
      64                 :            :       typedef typename _Traits::int_type                int_type;
      65                 :            :       typedef typename _Traits::pos_type                pos_type;
      66                 :            :       typedef typename _Traits::off_type                off_type;
      67                 :            :       typedef _Traits                                   traits_type;
      68                 :            :       
      69                 :            :       // Non-standard Types:
      70                 :            :       typedef basic_streambuf<_CharT, _Traits>            __streambuf_type;
      71                 :            :       typedef basic_ios<_CharT, _Traits>          __ios_type;
      72                 :            :       typedef basic_ostream<_CharT, _Traits>              __ostream_type;
      73                 :            :       typedef num_put<_CharT, ostreambuf_iterator<_CharT, _Traits> >        
      74                 :            :                                                         __num_put_type;
      75                 :            :       typedef ctype<_CharT>                               __ctype_type;
      76                 :            : 
      77                 :            :       // [27.6.2.2] constructor/destructor
      78                 :            :       /**
      79                 :            :        *  @brief  Base constructor.
      80                 :            :        *
      81                 :            :        *  This ctor is almost never called by the user directly, rather from
      82                 :            :        *  derived classes' initialization lists, which pass a pointer to
      83                 :            :        *  their own stream buffer.
      84                 :            :       */
      85                 :            :       explicit 
      86                 :       4909 :       basic_ostream(__streambuf_type* __sb)
      87                 :       4909 :       { this->init(__sb); }
      88                 :            : 
      89                 :            :       /**
      90                 :            :        *  @brief  Base destructor.
      91                 :            :        *
      92                 :            :        *  This does very little apart from providing a virtual base dtor.
      93                 :            :       */
      94                 :            :       virtual 
      95 [ +  + ][ -  + ]:     265119 :       ~basic_ostream() { }
         [ -  + ][ -  + ]
      96                 :            : 
      97                 :            :       // [27.6.2.3] prefix/suffix
      98                 :            :       class sentry;
      99                 :            :       friend class sentry;
     100                 :            :       
     101                 :            :       // [27.6.2.5] formatted output
     102                 :            :       // [27.6.2.5.3]  basic_ostream::operator<<
     103                 :            :       //@{
     104                 :            :       /**
     105                 :            :        *  @brief  Interface for manipulators.
     106                 :            :        *
     107                 :            :        *  Manipulators such as @c std::endl and @c std::hex use these
     108                 :            :        *  functions in constructs like "std::cout << std::endl".  For more
     109                 :            :        *  information, see the iomanip header.
     110                 :            :       */
     111                 :            :       __ostream_type&
     112                 :            :       operator<<(__ostream_type& (*__pf)(__ostream_type&))
     113                 :            :       {
     114                 :            :         // _GLIBCXX_RESOLVE_LIB_DEFECTS
     115                 :            :         // DR 60. What is a formatted input function?
     116                 :            :         // The inserters for manipulators are *not* formatted output functions.
     117                 :     223454 :         return __pf(*this);
     118                 :            :       }
     119                 :            : 
     120                 :            :       __ostream_type&
     121                 :            :       operator<<(__ios_type& (*__pf)(__ios_type&))
     122                 :            :       {
     123                 :            :         // _GLIBCXX_RESOLVE_LIB_DEFECTS
     124                 :            :         // DR 60. What is a formatted input function?
     125                 :            :         // The inserters for manipulators are *not* formatted output functions.
     126                 :            :         __pf(*this);
     127                 :            :         return *this;
     128                 :            :       }
     129                 :            : 
     130                 :            :       __ostream_type&
     131                 :         54 :       operator<<(ios_base& (*__pf) (ios_base&))
     132                 :            :       {
     133                 :            :         // _GLIBCXX_RESOLVE_LIB_DEFECTS
     134                 :            :         // DR 60. What is a formatted input function?
     135                 :            :         // The inserters for manipulators are *not* formatted output functions.
     136                 :         54 :         __pf(*this);
     137                 :         54 :         return *this;
     138                 :            :       }
     139                 :            :       //@}
     140                 :            : 
     141                 :            :       // [27.6.2.5.2] arithmetic inserters
     142                 :            :       /**
     143                 :            :        *  @name Arithmetic Inserters
     144                 :            :        *
     145                 :            :        *  All the @c operator<< functions (aka <em>formatted output
     146                 :            :        *  functions</em>) have some common behavior.  Each starts by
     147                 :            :        *  constructing a temporary object of type std::basic_ostream::sentry.
     148                 :            :        *  This can have several effects, concluding with the setting of a
     149                 :            :        *  status flag; see the sentry documentation for more.
     150                 :            :        *
     151                 :            :        *  If the sentry status is good, the function tries to generate
     152                 :            :        *  whatever data is appropriate for the type of the argument.
     153                 :            :        *
     154                 :            :        *  If an exception is thrown during insertion, ios_base::badbit
     155                 :            :        *  will be turned on in the stream's error state without causing an
     156                 :            :        *  ios_base::failure to be thrown.  The original exception will then
     157                 :            :        *  be rethrown.
     158                 :            :       */
     159                 :            :       //@{
     160                 :            :       /**
     161                 :            :        *  @brief  Basic arithmetic inserters
     162                 :            :        *  @param  A variable of builtin type.
     163                 :            :        *  @return  @c *this if successful
     164                 :            :        *
     165                 :            :        *  These functions use the stream's current locale (specifically, the
     166                 :            :        *  @c num_get facet) to perform numeric formatting.
     167                 :            :       */
     168                 :            :       __ostream_type& 
     169                 :            :       operator<<(long __n)
     170                 :          0 :       { return _M_insert(__n); }
     171                 :            :       
     172                 :            :       __ostream_type& 
     173                 :            :       operator<<(unsigned long __n)
     174                 :            :       { return _M_insert(__n); }        
     175                 :            : 
     176                 :            :       __ostream_type& 
     177                 :            :       operator<<(bool __n)
     178                 :          0 :       { return _M_insert(__n); }
     179                 :            : 
     180                 :            :       __ostream_type& 
     181                 :            :       operator<<(short __n);
     182                 :            : 
     183                 :            :       __ostream_type& 
     184                 :            :       operator<<(unsigned short __n)
     185                 :            :       {
     186                 :            :         // _GLIBCXX_RESOLVE_LIB_DEFECTS
     187                 :            :         // 117. basic_ostream uses nonexistent num_put member functions.
     188                 :            :         return _M_insert(static_cast<unsigned long>(__n));
     189                 :            :       }
     190                 :            : 
     191                 :            :       __ostream_type& 
     192                 :            :       operator<<(int __n);
     193                 :            : 
     194                 :            :       __ostream_type& 
     195                 :            :       operator<<(unsigned int __n)
     196                 :            :       {
     197                 :            :         // _GLIBCXX_RESOLVE_LIB_DEFECTS
     198                 :            :         // 117. basic_ostream uses nonexistent num_put member functions.
     199                 :         99 :         return _M_insert(static_cast<unsigned long>(__n));
     200                 :            :       }
     201                 :            : 
     202                 :            : #ifdef _GLIBCXX_USE_LONG_LONG
     203                 :            :       __ostream_type& 
     204                 :            :       operator<<(long long __n)
     205                 :            :       { return _M_insert(__n); }
     206                 :            : 
     207                 :            :       __ostream_type& 
     208                 :            :       operator<<(unsigned long long __n)
     209                 :            :       { return _M_insert(__n); }        
     210                 :            : #endif
     211                 :            : 
     212                 :            :       __ostream_type& 
     213                 :            :       operator<<(double __f)
     214                 :     900405 :       { return _M_insert(__f); }
     215                 :            : 
     216                 :            :       __ostream_type& 
     217                 :          0 :       operator<<(float __f)
     218                 :            :       {
     219                 :            :         // _GLIBCXX_RESOLVE_LIB_DEFECTS
     220                 :            :         // 117. basic_ostream uses nonexistent num_put member functions.
     221                 :          0 :         return _M_insert(static_cast<double>(__f));
     222                 :            :       }
     223                 :            : 
     224                 :            :       __ostream_type& 
     225                 :            :       operator<<(long double __f)
     226                 :            :       { return _M_insert(__f); }
     227                 :            : 
     228                 :            :       __ostream_type& 
     229                 :            :       operator<<(const void* __p)
     230                 :            :       { return _M_insert(__p); }
     231                 :            : 
     232                 :            :       /**
     233                 :            :        *  @brief  Extracting from another streambuf.
     234                 :            :        *  @param  sb  A pointer to a streambuf
     235                 :            :        *
     236                 :            :        *  This function behaves like one of the basic arithmetic extractors,
     237                 :            :        *  in that it also constructs a sentry object and has the same error
     238                 :            :        *  handling behavior.
     239                 :            :        *
     240                 :            :        *  If @a sb is NULL, the stream will set failbit in its error state.
     241                 :            :        *
     242                 :            :        *  Characters are extracted from @a sb and inserted into @c *this
     243                 :            :        *  until one of the following occurs:
     244                 :            :        *
     245                 :            :        *  - the input stream reaches end-of-file,
     246                 :            :        *  - insertion into the output sequence fails (in this case, the
     247                 :            :        *    character that would have been inserted is not extracted), or
     248                 :            :        *  - an exception occurs while getting a character from @a sb, which
     249                 :            :        *    sets failbit in the error state
     250                 :            :        *
     251                 :            :        *  If the function inserts no characters, failbit is set.
     252                 :            :       */
     253                 :            :       __ostream_type& 
     254                 :            :       operator<<(__streambuf_type* __sb);
     255                 :            :       //@}
     256                 :            : 
     257                 :            :       // [27.6.2.6] unformatted output functions
     258                 :            :       /**
     259                 :            :        *  @name Unformatted Output Functions
     260                 :            :        *
     261                 :            :        *  All the unformatted output functions have some common behavior.
     262                 :            :        *  Each starts by constructing a temporary object of type
     263                 :            :        *  std::basic_ostream::sentry.  This has several effects, concluding
     264                 :            :        *  with the setting of a status flag; see the sentry documentation
     265                 :            :        *  for more.
     266                 :            :        *
     267                 :            :        *  If the sentry status is good, the function tries to generate
     268                 :            :        *  whatever data is appropriate for the type of the argument.
     269                 :            :        *
     270                 :            :        *  If an exception is thrown during insertion, ios_base::badbit
     271                 :            :        *  will be turned on in the stream's error state.  If badbit is on in
     272                 :            :        *  the stream's exceptions mask, the exception will be rethrown
     273                 :            :        *  without completing its actions.
     274                 :            :       */
     275                 :            :       //@{
     276                 :            :       /**
     277                 :            :        *  @brief  Simple insertion.
     278                 :            :        *  @param  c  The character to insert.
     279                 :            :        *  @return  *this
     280                 :            :        *
     281                 :            :        *  Tries to insert @a c.
     282                 :            :        *
     283                 :            :        *  @note  This function is not overloaded on signed char and
     284                 :            :        *         unsigned char.
     285                 :            :       */
     286                 :            :       __ostream_type& 
     287                 :            :       put(char_type __c);
     288                 :            : 
     289                 :            :       // Core write functionality, without sentry.
     290                 :            :       void
     291                 :            :       _M_write(const char_type* __s, streamsize __n)
     292                 :            :       {
     293                 :            :         const streamsize __put = this->rdbuf()->sputn(__s, __n);
     294                 :            :         if (__put != __n)
     295                 :            :           this->setstate(ios_base::badbit);
     296                 :            :       }
     297                 :            : 
     298                 :            :       /**
     299                 :            :        *  @brief  Character string insertion.
     300                 :            :        *  @param  s  The array to insert.
     301                 :            :        *  @param  n  Maximum number of characters to insert.
     302                 :            :        *  @return  *this
     303                 :            :        *
     304                 :            :        *  Characters are copied from @a s and inserted into the stream until
     305                 :            :        *  one of the following happens:
     306                 :            :        *
     307                 :            :        *  - @a n characters are inserted
     308                 :            :        *  - inserting into the output sequence fails (in this case, badbit
     309                 :            :        *    will be set in the stream's error state)
     310                 :            :        *
     311                 :            :        *  @note  This function is not overloaded on signed char and
     312                 :            :        *         unsigned char.
     313                 :            :       */
     314                 :            :       __ostream_type& 
     315                 :            :       write(const char_type* __s, streamsize __n);
     316                 :            :       //@}
     317                 :            : 
     318                 :            :       /**
     319                 :            :        *  @brief  Synchronizing the stream buffer.
     320                 :            :        *  @return  *this
     321                 :            :        *
     322                 :            :        *  If @c rdbuf() is a null pointer, changes nothing.
     323                 :            :        *
     324                 :            :        *  Otherwise, calls @c rdbuf()->pubsync(), and if that returns -1,
     325                 :            :        *  sets badbit.
     326                 :            :       */
     327                 :            :       __ostream_type& 
     328                 :            :       flush();
     329                 :            : 
     330                 :            :       // [27.6.2.4] seek members
     331                 :            :       /**
     332                 :            :        *  @brief  Getting the current write position.
     333                 :            :        *  @return  A file position object.
     334                 :            :        *
     335                 :            :        *  If @c fail() is not false, returns @c pos_type(-1) to indicate
     336                 :            :        *  failure.  Otherwise returns @c rdbuf()->pubseekoff(0,cur,out).
     337                 :            :       */
     338                 :            :       pos_type 
     339                 :            :       tellp();
     340                 :            : 
     341                 :            :       /**
     342                 :            :        *  @brief  Changing the current write position.
     343                 :            :        *  @param  pos  A file position object.
     344                 :            :        *  @return  *this
     345                 :            :        *
     346                 :            :        *  If @c fail() is not true, calls @c rdbuf()->pubseekpos(pos).  If
     347                 :            :        *  that function fails, sets failbit.
     348                 :            :       */
     349                 :            :       __ostream_type& 
     350                 :            :       seekp(pos_type);
     351                 :            : 
     352                 :            :       /**
     353                 :            :        *  @brief  Changing the current write position.
     354                 :            :        *  @param  off  A file offset object.
     355                 :            :        *  @param  dir  The direction in which to seek.
     356                 :            :        *  @return  *this
     357                 :            :        *
     358                 :            :        *  If @c fail() is not true, calls @c rdbuf()->pubseekoff(off,dir).
     359                 :            :        *  If that function fails, sets failbit.
     360                 :            :       */
     361                 :            :        __ostream_type& 
     362                 :            :       seekp(off_type, ios_base::seekdir);
     363                 :            :       
     364                 :            :     protected:
     365                 :     260210 :       basic_ostream()
     366                 :     260210 :       { this->init(0); }
     367                 :            : 
     368                 :            :       template<typename _ValueT>
     369                 :            :         __ostream_type&
     370                 :            :         _M_insert(_ValueT __v);
     371                 :            :     };
     372                 :            : 
     373                 :            :   /**
     374                 :            :    *  @brief  Performs setup work for output streams.
     375                 :            :    *
     376                 :            :    *  Objects of this class are created before all of the standard
     377                 :            :    *  inserters are run.  It is responsible for "exception-safe prefix and
     378                 :            :    *  suffix operations."  Additional actions may be added by the
     379                 :            :    *  implementation, and we list them in
     380                 :            :    *  http://gcc.gnu.org/onlinedocs/libstdc++/17_intro/howto.html#5
     381                 :            :    *  under [27.6] notes.
     382                 :            :   */
     383                 :            :   template <typename _CharT, typename _Traits>
     384                 :            :     class basic_ostream<_CharT, _Traits>::sentry
     385                 :            :     {
     386                 :            :       // Data Members:
     387                 :            :       bool                              _M_ok;
     388                 :            :       basic_ostream<_CharT, _Traits>&         _M_os;
     389                 :            :       
     390                 :            :     public:
     391                 :            :       /**
     392                 :            :        *  @brief  The constructor performs preparatory work.
     393                 :            :        *  @param  os  The output stream to guard.
     394                 :            :        *
     395                 :            :        *  If the stream state is good (@a os.good() is true), then if the
     396                 :            :        *  stream is tied to another output stream, @c is.tie()->flush()
     397                 :            :        *  is called to synchronize the output sequences.
     398                 :            :        *
     399                 :            :        *  If the stream state is still good, then the sentry state becomes
     400                 :            :        *  true ("okay").
     401                 :            :       */
     402                 :            :       explicit
     403                 :            :       sentry(basic_ostream<_CharT, _Traits>& __os);
     404                 :            : 
     405                 :            :       /**
     406                 :            :        *  @brief  Possibly flushes the stream.
     407                 :            :        *
     408                 :            :        *  If @c ios_base::unitbuf is set in @c os.flags(), and
     409                 :            :        *  @c std::uncaught_exception() is true, the sentry destructor calls
     410                 :            :        *  @c flush() on the output stream.
     411                 :            :       */
     412                 :          0 :       ~sentry()
     413                 :            :       {
     414                 :            :         // XXX MT
     415 [ #  # ][ #  # ]:          0 :         if (bool(_M_os.flags() & ios_base::unitbuf) && !uncaught_exception())
                 [ #  # ]
     416                 :            :           {
     417                 :            :             // Can't call flush directly or else will get into recursive lock.
     418 [ #  # ][ #  # ]:          0 :             if (_M_os.rdbuf() && _M_os.rdbuf()->pubsync() == -1)
                 [ #  # ]
     419                 :          0 :               _M_os.setstate(ios_base::badbit);
     420                 :            :           }
     421                 :          0 :       }
     422                 :            : 
     423                 :            :       /**
     424                 :            :        *  @brief  Quick status checking.
     425                 :            :        *  @return  The sentry state.
     426                 :            :        *
     427                 :            :        *  For ease of use, sentries may be converted to booleans.  The
     428                 :            :        *  return value is that of the sentry state (true == okay).
     429                 :            :       */
     430                 :            :       operator bool() const
     431                 :          0 :       { return _M_ok; }
     432                 :            :     };
     433                 :            : 
     434                 :            :   // [27.6.2.5.4] character insertion templates
     435                 :            :   //@{
     436                 :            :   /**
     437                 :            :    *  @brief  Character inserters
     438                 :            :    *  @param  out  An output stream.
     439                 :            :    *  @param  c  A character.
     440                 :            :    *  @return  out
     441                 :            :    *
     442                 :            :    *  Behaves like one of the formatted arithmetic inserters described in
     443                 :            :    *  std::basic_ostream.  After constructing a sentry object with good
     444                 :            :    *  status, this function inserts a single character and any required
     445                 :            :    *  padding (as determined by [22.2.2.2.2]).  @c out.width(0) is then
     446                 :            :    *  called.
     447                 :            :    *
     448                 :            :    *  If @a c is of type @c char and the character type of the stream is not
     449                 :            :    *  @c char, the character is widened before insertion.
     450                 :            :   */
     451                 :            :   template<typename _CharT, typename _Traits>
     452                 :            :     inline basic_ostream<_CharT, _Traits>&
     453                 :            :     operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
     454                 :            :     { return __ostream_insert(__out, &__c, 1); }
     455                 :            : 
     456                 :            :   template<typename _CharT, typename _Traits>
     457                 :            :     inline basic_ostream<_CharT, _Traits>&
     458                 :            :     operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
     459                 :            :     { return (__out << __out.widen(__c)); }
     460                 :            : 
     461                 :            :   // Specialization
     462                 :            :   template <class _Traits> 
     463                 :            :     inline basic_ostream<char, _Traits>&
     464                 :       1708 :     operator<<(basic_ostream<char, _Traits>& __out, char __c)
     465                 :       1708 :     { return __ostream_insert(__out, &__c, 1); }
     466                 :            : 
     467                 :            :   // Signed and unsigned
     468                 :            :   template<class _Traits>
     469                 :            :     inline basic_ostream<char, _Traits>&
     470                 :            :     operator<<(basic_ostream<char, _Traits>& __out, signed char __c)
     471                 :            :     { return (__out << static_cast<char>(__c)); }
     472                 :            :   
     473                 :            :   template<class _Traits>
     474                 :            :     inline basic_ostream<char, _Traits>&
     475                 :            :     operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c)
     476                 :            :     { return (__out << static_cast<char>(__c)); }
     477                 :            :   //@}
     478                 :            :   
     479                 :            :   //@{
     480                 :            :   /**
     481                 :            :    *  @brief  String inserters
     482                 :            :    *  @param  out  An output stream.
     483                 :            :    *  @param  s  A character string.
     484                 :            :    *  @return  out
     485                 :            :    *  @pre  @a s must be a non-NULL pointer
     486                 :            :    *
     487                 :            :    *  Behaves like one of the formatted arithmetic inserters described in
     488                 :            :    *  std::basic_ostream.  After constructing a sentry object with good
     489                 :            :    *  status, this function inserts @c traits::length(s) characters starting
     490                 :            :    *  at @a s, widened if necessary, followed by any required padding (as
     491                 :            :    *  determined by [22.2.2.2.2]).  @c out.width(0) is then called.
     492                 :            :   */
     493                 :            :   template<typename _CharT, typename _Traits>
     494                 :            :     inline basic_ostream<_CharT, _Traits>&
     495                 :            :     operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
     496                 :            :     {
     497                 :            :       if (!__s)
     498                 :            :         __out.setstate(ios_base::badbit);
     499                 :            :       else
     500                 :            :         __ostream_insert(__out, __s,
     501                 :            :                          static_cast<streamsize>(_Traits::length(__s)));
     502                 :            :       return __out;
     503                 :            :     }
     504                 :            : 
     505                 :            :   template<typename _CharT, typename _Traits>
     506                 :            :     basic_ostream<_CharT, _Traits> &
     507                 :            :     operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s);
     508                 :            : 
     509                 :            :   // Partial specializations
     510                 :            :   template<class _Traits>
     511                 :            :     inline basic_ostream<char, _Traits>&
     512                 :        230 :     operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
     513                 :            :     {
     514         [ -  + ]:        230 :       if (!__s)
     515                 :          0 :         __out.setstate(ios_base::badbit);
     516                 :            :       else
     517                 :        230 :         __ostream_insert(__out, __s,
     518                 :            :                          static_cast<streamsize>(_Traits::length(__s)));
     519                 :        230 :       return __out;
     520                 :            :     }
     521                 :            : 
     522                 :            :   // Signed and unsigned
     523                 :            :   template<class _Traits>
     524                 :            :     inline basic_ostream<char, _Traits>&
     525                 :            :     operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s)
     526                 :            :     { return (__out << reinterpret_cast<const char*>(__s)); }
     527                 :            : 
     528                 :            :   template<class _Traits>
     529                 :            :     inline basic_ostream<char, _Traits> &
     530                 :            :     operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s)
     531                 :            :     { return (__out << reinterpret_cast<const char*>(__s)); }
     532                 :            :   //@}
     533                 :            : 
     534                 :            :   // [27.6.2.7] standard basic_ostream manipulators
     535                 :            :   /**
     536                 :            :    *  @brief  Write a newline and flush the stream.
     537                 :            :    *
     538                 :            :    *  This manipulator is often mistakenly used when a simple newline is
     539                 :            :    *  desired, leading to poor buffering performance.  See
     540                 :            :    *  http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#2 for more
     541                 :            :    *  on this subject.
     542                 :            :   */
     543                 :            :   template<typename _CharT, typename _Traits>
     544                 :            :     inline basic_ostream<_CharT, _Traits>& 
     545                 :       5100 :     endl(basic_ostream<_CharT, _Traits>& __os)
     546                 :      10200 :     { return flush(__os.put(__os.widen('\n'))); }
     547                 :            : 
     548                 :            :   /**
     549                 :            :    *  @brief  Write a null character into the output sequence.
     550                 :            :    *
     551                 :            :    *  "Null character" is @c CharT() by definition.  For CharT of @c char,
     552                 :            :    *  this correctly writes the ASCII @c NUL character string terminator.
     553                 :            :   */
     554                 :            :   template<typename _CharT, typename _Traits>
     555                 :            :     inline basic_ostream<_CharT, _Traits>& 
     556                 :            :     ends(basic_ostream<_CharT, _Traits>& __os)
     557                 :            :     { return __os.put(_CharT()); }
     558                 :            :   
     559                 :            :   /**
     560                 :            :    *  @brief  Flushes the output stream.
     561                 :            :    *
     562                 :            :    *  This manipulator simply calls the stream's @c flush() member function.
     563                 :            :   */
     564                 :            :   template<typename _CharT, typename _Traits>
     565                 :            :     inline basic_ostream<_CharT, _Traits>& 
     566                 :            :     flush(basic_ostream<_CharT, _Traits>& __os)
     567                 :       5100 :     { return __os.flush(); }
     568                 :            : 
     569                 :            : _GLIBCXX_END_NAMESPACE
     570                 :            : 
     571                 :            : #ifndef _GLIBCXX_EXPORT_TEMPLATE
     572                 :            : # include <bits/ostream.tcc>
     573                 :            : #endif
     574                 :            : 
     575                 :            : #endif  /* _GLIBCXX_OSTREAM */

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