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      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:
    128