std_streambuf.h (basic_streambuf::_M_buf): Change to size_t, from int_type.

2002-07-04  Benjamin Kosnik  <bkoz@redhat.com>
            Jack Reeves  <jackw_reeves@hotmail.com>

	* include/std/std_streambuf.h (basic_streambuf::_M_buf): Change to
	size_t, from int_type.
 	(basic_streambuf::_M_buf_size_opt): Same.
 	(basic_streambuf::_S_pback_sizex): Same.
	* include/bits/streambuf.tcc: Same.
	* include/std/std_streambuf.h (basic_streambuf::snextc): Use
	eq_int_type.
	(basic_streambuf::uflow): Same.
	* include/bits/sstream.tcc (basic_stringbuf::overflow): Use
	to_char_type.
	* include/bits/basic_ios.tcc (basic_ios::init): Use _CharT().
	* include/bits/streambuf.tcc (basic_streambuf::xsgetn): Use
	eq_int_type.
	(basic_streambuf::xsputn): Same.
	(__copy_streambufs): Same.

Co-Authored-By: Jack Reeves <jackw_reeves@hotmail.com>

From-SVN: r55242

libstdc++-v3/ChangeLog

+2002-07-04  Benjamin Kosnik  <bkoz@redhat.com>
+            Jack Reeves  <jackw_reeves@hotmail.com>
+
+	* include/std/std_streambuf.h (basic_streambuf::_M_buf): Change to
+	size_t, from int_type.
+ 	(basic_streambuf::_M_buf_size_opt): Same.
+ 	(basic_streambuf::_S_pback_sizex): Same.	
+	* include/bits/streambuf.tcc: Same.
+	* include/std/std_streambuf.h (basic_streambuf::snextc): Use
+	eq_int_type.
+	(basic_streambuf::uflow): Same.
+	* include/bits/sstream.tcc (basic_stringbuf::overflow): Use
+	to_char_type.
+	* include/bits/basic_ios.tcc (basic_ios::init): Use _CharT().
+	* include/bits/streambuf.tcc (basic_streambuf::xsgetn): Use
+	eq_int_type.
+	(basic_streambuf::xsputn): Same.
+	(__copy_streambufs): Same.
+
 2002-07-03  Benjamin Kosnik  <bkoz@redhat.com>
 
 	* include/std/std_memory.h: Fix formatting.

libstdc++-v3/include/bits/basic_ios.tcc

@@ -156,7 +156,7 @@ namespace std
       // unformatted input and output with non-required basic_ios
       // instantiations is possible even without imbuing the expected
       // ctype<char_type> facet.
-      _M_fill = 0;
+      _M_fill = _CharT();
       _M_fill_init = false;
 
       _M_exception = goodbit;

libstdc++-v3/include/bits/sstream.tcc

@@ -95,13 +95,13 @@ namespace std
 	      __len *= 2;
 
 	      if (__testwrite)
-		__ret = this->sputc(__c);
+		__ret = this->sputc(traits_type::to_char_type(__c));
 	      else if (__len <= _M_string.max_size())
 		{
 		  // Force-allocate, re-sync.
 		  _M_string = this->str();
 		  _M_string.reserve(__len);
-		  _M_buf_size = static_cast<int_type>(__len);
+		  _M_buf_size = __len;
 		  _M_really_sync(_M_in_cur - _M_in_beg, 
 				 _M_out_cur - _M_out_beg);
 		  *_M_out_cur = traits_type::to_char_type(__c);

libstdc++-v3/include/bits/streambuf.tcc

@@ -40,7 +40,7 @@
 namespace std 
 {
   template<typename _CharT, typename _Traits>
-    const typename basic_streambuf<_CharT, _Traits>::int_type
+    const size_t
     basic_streambuf<_CharT, _Traits>::_S_pback_size;
 
   template<typename _CharT, typename _Traits>
@@ -138,7 +138,7 @@ namespace std
 	  if (__ret < __n)
 	    {
 	      int_type __c = this->uflow();  
-	      if (__c != traits_type::eof())
+	      if (!traits_type::eq_int_type(__c, traits_type::eof()))
 		{
 		  traits_type::assign(*__s++, traits_type::to_char_type(__c));
 		  ++__ret;
@@ -177,7 +177,7 @@ namespace std
 	  if (__ret < __n)
 	    {
 	      int_type __c = this->overflow(traits_type::to_int_type(*__s));
-	      if (__c != traits_type::eof())
+	      if (!traits_type::eq_int_type(__c, traits_type::eof()))
 		{
 		  ++__ret;
 		  ++__s;
@@ -214,7 +214,7 @@ namespace std
 	      __sbin->_M_in_cur_move(__xtrct);
 	      if (__xtrct == __bufsize)
 		{
-		  if (__sbin->sgetc() == _Traits::eof())
+		  if (_Traits::eq_int_type(__sbin->sgetc(), _Traits::eof()))
 		    break;
 		  __bufsize = __sbin->in_avail();
 		}

libstdc++-v3/include/std/std_streambuf.h

@@ -91,10 +91,10 @@ namespace std
       char_type*		_M_buf; 	
 
       // Actual size of allocated internal buffer, in bytes.
-      int_type			_M_buf_size;
+      size_t			_M_buf_size;
 
       // Optimal or preferred size of internal buffer, in bytes.
-      int_type			_M_buf_size_opt;
+      size_t			_M_buf_size_opt;
 
       // True iff _M_in_* and _M_out_* buffers should always point to
       // the same place.  True for fstreams, false for sstreams.
@@ -126,7 +126,7 @@ namespace std
       // requirements. The only basic_streambuf member function that
       // needs access to these data members is in_avail...
       // NB: pbacks of over one character are not currently supported.
-      static const int_type    	_S_pback_size = 1; 
+      static const size_t   	_S_pback_size = 1; 
       char_type			_M_pback[_S_pback_size]; 
       char_type*		_M_pback_cur_save;
       char_type*		_M_pback_end_save;
@@ -140,8 +140,8 @@ namespace std
       {
 	if (!_M_pback_init)
 	  {
-	    int_type __dist = _M_in_end - _M_in_cur;
-	    int_type __len = min(_S_pback_size, __dist);
+	    size_t __dist = _M_in_end - _M_in_cur;
+	    size_t __len = min(_S_pback_size, __dist);
 	    traits_type::copy(_M_pback, _M_in_cur, __len);
 	    _M_pback_cur_save = _M_in_cur;
 	    _M_pback_end_save = _M_in_end;
@@ -159,12 +159,12 @@ namespace std
 	if (_M_pback_init)
 	  {
 	    // Length _M_in_cur moved in the pback buffer.
-	    int_type __off_cur = _M_in_cur - _M_pback;
+	    size_t __off_cur = _M_in_cur - _M_pback;
 	    
 	    // For in | out buffers, the end can be pushed back...
-	    int_type __off_end = 0;
-	    int_type __pback_len = _M_in_end - _M_pback;
-	    int_type __save_len = _M_pback_end_save - _M_buf;
+	    size_t __off_end = 0;
+	    size_t __pback_len = _M_in_end - _M_pback;
+	    size_t __save_len = _M_pback_end_save - _M_buf;
 	    if (__pback_len > __save_len)
 	      __off_end = __pback_len - __save_len;
 
@@ -288,8 +288,8 @@ namespace std
 	  {
 	    if (_M_pback_init)
 	      {
-		int_type __save_len =  _M_pback_end_save - _M_pback_cur_save;
-		int_type __pback_len = _M_in_cur - _M_pback;
+		size_t __save_len =  _M_pback_end_save - _M_pback_cur_save;
+		size_t __pback_len = _M_in_cur - _M_pback;
 		__ret = __save_len - __pback_len;
 	      }
 	    else
@@ -304,7 +304,8 @@ namespace std
       snextc()
       {
 	int_type __eof = traits_type::eof();
-	return (this->sbumpc() == __eof ? __eof : this->sgetc()); 
+	return (traits_type::eq_int_type(this->sbumpc(), __eof) 
+		? __eof : this->sgetc());
       }
 
       int_type 
@@ -342,10 +343,10 @@ namespace std
 
     protected:
       basic_streambuf()
-      : _M_buf(NULL), _M_buf_size(0), 
-      _M_buf_size_opt(static_cast<int_type>(BUFSIZ)), _M_buf_unified(false), 
-      _M_in_beg(0), _M_in_cur(0), _M_in_end(0), _M_out_beg(0), _M_out_cur(0), 
-      _M_out_end(0), _M_mode(ios_base::openmode(0)), _M_buf_locale(locale()), 
+      : _M_buf(NULL), _M_buf_size(0), _M_buf_size_opt(BUFSIZ), 
+      _M_buf_unified(false), _M_in_beg(0), _M_in_cur(0), _M_in_end(0), 
+      _M_out_beg(0), _M_out_cur(0), _M_out_end(0), 
+      _M_mode(ios_base::openmode(0)), _M_buf_locale(locale()), 
       _M_buf_locale_init(false), _M_pback_cur_save(0), _M_pback_end_save(0), 
       _M_pback_init(false)
       { }
@@ -438,7 +439,7 @@ namespace std
       uflow() 
       {
 	int_type __ret = traits_type::eof();
-	bool __testeof = this->underflow() == __ret;
+	bool __testeof = traits_type::eq_int_type(this->underflow(), __ret);
 	bool __testpending = _M_in_cur && _M_in_cur < _M_in_end;
 	if (!__testeof && __testpending)
 	  {