include/stlport/stl/_ios.c

   1 /*
   2  * Copyright (c) 1999
   3  * Silicon Graphics Computer Systems, Inc.
   4  *
   5  * Copyright (c) 1999
   6  * Boris Fomitchev
   7  *
   8  * This material is provided "as is", with absolutely no warranty expressed
   9  * or implied. Any use is at your own risk.
  10  *
  11  * Permission to use or copy this software for any purpose is hereby granted
  12  * without fee, provided the above notices are retained on all copies.
  13  * Permission to modify the code and to distribute modified code is granted,
  14  * provided the above notices are retained, and a notice that the code was
  15  * modified is included with the above copyright notice.
  16  *
  17  */
  18 #ifndef _STLP_IOS_C
  19 #define _STLP_IOS_C
  20
  21 #ifndef _STLP_INTERNAL_IOS_H
  22 # include <stl/_ios.h>
  23 #endif
  24
  25 #ifndef _STLP_INTERNAL_STREAMBUF
  26 # include <stl/_streambuf.h>
  27 #endif
  28
  29 #ifndef _STLP_INTERNAL_NUMPUNCT_H
  30 # include <stl/_numpunct.h>
  31 #endif
  32
  33 _STLP_BEGIN_NAMESPACE
  34
  35 // basic_ios<>'s non-inline member functions
  36
  37 // Public constructor, taking a streambuf.
  38 template <class _CharT, class _Traits>
  39 basic_ios<_CharT, _Traits>
  40   ::basic_ios(basic_streambuf<_CharT, _Traits>* __streambuf)
  41     : ios_base(), _M_cached_ctype(0),
  42       _M_fill(_STLP_NULL_CHAR_INIT(_CharT)), _M_streambuf(0), _M_tied_ostream(0) {
  43   basic_ios<_CharT, _Traits>::init(__streambuf);
  44 }
  45
  46 template <class _CharT, class _Traits>
  47 basic_streambuf<_CharT, _Traits>*
  48 basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<_CharT, _Traits>* __buf) {
  49   basic_streambuf<_CharT, _Traits>* __tmp = _M_streambuf;
  50   _M_streambuf = __buf;
  51   this->clear();
  52   return __tmp;
  53 }
  54
  55 template <class _CharT, class _Traits>
  56 basic_ios<_CharT, _Traits>&
  57 basic_ios<_CharT, _Traits>::copyfmt(const basic_ios<_CharT, _Traits>& __x) {
  58   _M_invoke_callbacks(erase_event);
  59   _M_copy_state(__x);           // Inherited from ios_base.
  60   _M_cached_ctype = __x._M_cached_ctype;
  61   _M_fill = __x._M_fill;
  62   _M_tied_ostream = __x._M_tied_ostream;
  63   _M_invoke_callbacks(copyfmt_event);
  64   this->_M_set_exception_mask(__x.exceptions());
  65   return *this;
  66 }
  67
  68 template <class _CharT, class _Traits>
  69 locale basic_ios<_CharT, _Traits>::imbue(const locale& __loc) {
  70   locale __tmp = ios_base::imbue(__loc);
  71   _STLP_TRY {
  72     if (_M_streambuf)
  73       _M_streambuf->pubimbue(__loc);
  74
  75     // no throwing here
  76     _M_cached_ctype = &use_facet<ctype<char_type> >(__loc);
  77   }
  78   _STLP_CATCH_ALL {
  79     __tmp = ios_base::imbue(__tmp);
  80     _M_handle_exception(ios_base::failbit);
  81   }
  82   return __tmp;
  83 }
  84
  85 // Protected constructor and initialization functions. The default
  86 // constructor creates an uninitialized basic_ios, and init() initializes
  87 // all of the members to the values in Table 89 of the C++ standard.
  88
  89 template <class _CharT, class _Traits>
  90 basic_ios<_CharT, _Traits>::basic_ios()
  91   : ios_base(),
  92     _M_fill(_STLP_NULL_CHAR_INIT(_CharT)), _M_streambuf(0), _M_tied_ostream(0)
  93 {}
  94
  95 template <class _CharT, class _Traits>
  96 void
  97 basic_ios<_CharT, _Traits>::init(basic_streambuf<_CharT, _Traits>* __sb)
  98 {
  99   this->rdbuf(__sb);
 100   this->imbue(locale());
 101   this->tie(0);
 102   this->_M_set_exception_mask(ios_base::goodbit);
 103   this->_M_clear_nothrow(__sb != 0 ? ios_base::goodbit : ios_base::badbit);
 104   ios_base::flags(ios_base::skipws | ios_base::dec);
 105   ios_base::width(0);
 106   ios_base::precision(6);
 107   this->fill(widen(' '));
 108   // We don't need to worry about any of the three arrays: they are
 109   // initialized correctly in ios_base's constructor.
 110 }
 111
 112 // This is never called except from within a catch clause.
 113 template <class _CharT, class _Traits>
 114 void basic_ios<_CharT, _Traits>::_M_handle_exception(ios_base::iostate __flag)
 115 {
 116   this->_M_setstate_nothrow(__flag);
 117   if (this->_M_get_exception_mask() & __flag)
 118     _STLP_RETHROW;
 119 }
 120
 121 _STLP_END_NAMESPACE
 122
 123 #endif /* _STLP_IOS_C */
 124
 125 // Local Variables:
 126 // mode:C++
 127 // End: