-// basic_ios locale and locale-related member functions -*- C++ -*-
+// basic_ios member functions -*- C++ -*-
-// Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
+// Copyright (C) 1999, 2001, 2002, 2003 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
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
-#ifndef _CPP_BITS_BASICIOS_TCC
-#define _CPP_BITS_BASICIOS_TCC 1
+#ifndef _BASIC_IOS_TCC
+#define _BASIC_IOS_TCC 1
+
+#pragma GCC system_header
namespace std
{
template<typename _CharT, typename _Traits>
- basic_streambuf<_CharT, _Traits>*
+ void
+ basic_ios<_CharT, _Traits>::clear(iostate __state)
+ {
+ if (this->rdbuf())
+ _M_streambuf_state = __state;
+ else
+ _M_streambuf_state = __state | badbit;
+ if (this->exceptions() & this->rdstate())
+ __throw_ios_failure(__N("basic_ios::clear"));
+ }
+
+ template<typename _CharT, typename _Traits>
+ basic_streambuf<_CharT, _Traits>*
basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<_CharT, _Traits>* __sb)
{
basic_streambuf<_CharT, _Traits>* __old = _M_streambuf;
basic_ios<_CharT, _Traits>&
basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs)
{
- // Per 27.1.1.1, do not call imbue, yet must trash all caches
- // associated with imbue()
-
- // Alloc any new word array first, so if it fails we have "rollback".
- _Words* __words = (__rhs._M_word_limit <= _S_local_words) ?
- _M_word_array : new _Words[__rhs._M_word_limit];
-
- // XXX This is the only reason _Callback_list was defined
- // inline. The suspicion is that this increased compilation
- // times dramatically for functions that use this member
- // function (inserters_extractors, ios_manip_fmtflags). FIX ME,
- // clean this stuff up. Callbacks are broken right now, anyway.
-
- // Bump refs before doing callbacks, for safety.
- _Callback_list* __cb = __rhs._M_callbacks;
- if (__cb)
- __cb->_M_add_reference();
- _M_call_callbacks(erase_event);
- if (_M_words != _M_word_array)
- delete [] _M_words;
- _M_dispose_callbacks();
-
- _M_callbacks = __cb; // NB: Don't want any added during above.
- for (int __i = 0; __i < __rhs._M_word_limit; ++__i)
- __words[__i] = __rhs._M_words[__i];
- if (_M_words != _M_word_array)
- delete [] _M_words;
- _M_words = __words;
- _M_word_limit = __rhs._M_word_limit;
-
- this->flags(__rhs.flags());
- this->width(__rhs.width());
- this->precision(__rhs.precision());
- this->tie(__rhs.tie());
- this->fill(__rhs.fill());
- // The next is required to be the last assignment.
- this->exceptions(__rhs.exceptions());
-
- _M_call_callbacks(copyfmt_event);
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 292. effects of a.copyfmt (a)
+ if (this != &__rhs)
+ {
+ // Per 27.1.1, do not call imbue, yet must trash all caches
+ // associated with imbue()
+
+ // Alloc any new word array first, so if it fails we have "rollback".
+ _Words* __words = (__rhs._M_word_size <= _S_local_word_size) ?
+ _M_local_word : new _Words[__rhs._M_word_size];
+
+ // Bump refs before doing callbacks, for safety.
+ _Callback_list* __cb = __rhs._M_callbacks;
+ if (__cb)
+ __cb->_M_add_reference();
+ _M_call_callbacks(erase_event);
+ if (_M_word != _M_local_word)
+ {
+ delete [] _M_word;
+ _M_word = 0;
+ }
+ _M_dispose_callbacks();
+
+ // NB: Don't want any added during above.
+ _M_callbacks = __cb;
+ for (int __i = 0; __i < __rhs._M_word_size; ++__i)
+ __words[__i] = __rhs._M_word[__i];
+ if (_M_word != _M_local_word)
+ {
+ delete [] _M_word;
+ _M_word = 0;
+ }
+ _M_word = __words;
+ _M_word_size = __rhs._M_word_size;
+
+ this->flags(__rhs.flags());
+ this->width(__rhs.width());
+ this->precision(__rhs.precision());
+ this->tie(__rhs.tie());
+ this->fill(__rhs.fill());
+ _M_ios_locale = __rhs.getloc();
+ _M_cache_locale(_M_ios_locale);
+
+ _M_call_callbacks(copyfmt_event);
+
+ // The next is required to be the last assignment.
+ this->exceptions(__rhs.exceptions());
+ }
return *this;
}
template<typename _CharT, typename _Traits>
char
basic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const
- {
- char __ret = __dfault;
- if (_M_check_facet(_M_ios_fctype))
- __ret = _M_ios_fctype->narrow(__c, __dfault);
- return __ret;
- }
+ { return __check_facet(_M_ctype).narrow(__c, __dfault); }
template<typename _CharT, typename _Traits>
_CharT
basic_ios<_CharT, _Traits>::widen(char __c) const
- {
- char_type __ret = char_type();
- if (_M_check_facet(_M_ios_fctype))
- __ret = _M_ios_fctype->widen(__c);
- return __ret;
- }
+ { return __check_facet(_M_ctype).widen(__c); }
// Locales:
template<typename _CharT, typename _Traits>
{
locale __old(this->getloc());
ios_base::imbue(__loc);
- _M_cache_facets(__loc);
+ _M_cache_locale(__loc);
if (this->rdbuf() != 0)
this->rdbuf()->pubimbue(__loc);
return __old;
{
// NB: This may be called more than once on the same object.
ios_base::_M_init();
- _M_cache_facets(_M_ios_locale);
- _M_tie = 0;
- // NB: The 27.4.4.1 Postconditions Table only specifies
- // requirements after basic_ios::init() has been called. As part
- // of this, fill() must return widen(' '), which needs an imbued
- // ctype facet of char_type to return without throwing an
- // exception. This is not a required facet, so streams with
- // char_type != [char, wchar_t] will not have it by
- // default. However, because fill()'s signature is const, this
- // data member cannot be lazily initialized. Thus, thoughts of
- // using a non-const helper function in ostream inserters is
- // really besides the point.
- _M_fill = this->widen(' ');
+ // Cache locale data and specific facets used by iostreams.
+ _M_cache_locale(_M_ios_locale);
+
+ // NB: The 27.4.4.1 Postconditions Table specifies requirements
+ // after basic_ios::init() has been called. As part of this,
+ // fill() must return widen(' ') any time after init() has been
+ // called, which needs an imbued ctype facet of char_type to
+ // return without throwing an exception. Unfortunately,
+ // ctype<char_type> is not necessarily a required facet, so
+ // streams with char_type != [char, wchar_t] will not have it by
+ // default. Because of this, the correct value for _M_fill is
+ // constructed on the first call of fill(). That way,
+ // unformatted input and output with non-required basic_ios
+ // instantiations is possible even without imbuing the expected
+ // ctype<char_type> facet.
+ _M_fill = _CharT();
+ _M_fill_init = false;
+ _M_tie = 0;
_M_exception = goodbit;
_M_streambuf = __sb;
_M_streambuf_state = __sb ? goodbit : badbit;
template<typename _CharT, typename _Traits>
void
- basic_ios<_CharT, _Traits>::_M_cache_facets(const locale& __loc)
+ basic_ios<_CharT, _Traits>::_M_cache_locale(const locale& __loc)
{
- if (has_facet<__ctype_type>(__loc))
- _M_ios_fctype = &use_facet<__ctype_type>(__loc);
+ if (__builtin_expect(has_facet<__ctype_type>(__loc), true))
+ _M_ctype = &use_facet<__ctype_type>(__loc);
else
- _M_ios_fctype = 0;
- // Should be filled in by ostream and istream, respectively.
- if (has_facet<__numput_type>(__loc))
- _M_fnumput = &use_facet<__numput_type>(__loc);
+ _M_ctype = 0;
+
+ if (__builtin_expect(has_facet<__num_put_type>(__loc), true))
+ _M_num_put = &use_facet<__num_put_type>(__loc);
else
- _M_fnumput = 0;
- if (has_facet<__numget_type>(__loc))
- _M_fnumget = &use_facet<__numget_type>(__loc);
+ _M_num_put = 0;
+
+ if (__builtin_expect(has_facet<__num_get_type>(__loc), true))
+ _M_num_get = &use_facet<__num_get_type>(__loc);
else
- _M_fnumget = 0;
+ _M_num_get = 0;
}
+
+ // Inhibit implicit instantiations for required instantiations,
+ // which are defined via explicit instantiations elsewhere.
+ // NB: This syntax is a GNU extension.
+#if _GLIBCXX_EXTERN_TEMPLATE
+ extern template class basic_ios<char>;
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+ extern template class basic_ios<wchar_t>;
+#endif
+#endif
} // namespace std
-#endif
+#endif
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