re PR libstdc++/6360 (Wrong workaround in char_traits.h - ignore stops on \0xff)

2002-04-20  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/6360
	* include/bits/istream.tcc (istream::ignore): Streamline, use
	delimiter as is.
	* include/bits/streambuf.tcc: Use this->gptr.
	* testsuite/27_io/istream_unformatted.cc (test08): Add test.

From-SVN: r52563

libstdc++-v3/ChangeLog

+2002-04-20  Benjamin Kosnik  <bkoz@redhat.com>
+
+	PR libstdc++/6360
+	* include/bits/istream.tcc (istream::ignore): Streamline, use
+	delimiter as is.
+	* include/bits/streambuf.tcc: Use this->gptr.
+	* testsuite/27_io/istream_unformatted.cc (test08): Add test.
+	
 2002-04-18  Benjamin Kosnik  <bkoz@redhat.com>
 
 	* include/bits/localefwd.h (locale::id::_M_id): Do this correctly,

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

@@ -708,29 +708,27 @@ namespace std
     {
       _M_gcount = 0;
       sentry __cerb(*this, true);
-      if (__cerb && __n > 0) 
+      if (__cerb) 
 	{
 	  try 
 	    {
-	      const int_type __idelim = traits_type::to_int_type(__delim);
 	      const int_type __eof = traits_type::eof();
 	      __streambuf_type* __sb = this->rdbuf();
-	      int_type __c = __sb->sbumpc();	
-	      bool __testdelim = __c == __idelim;
-	      bool __testeof =  __c == __eof;
+	      int_type __c = __sb->sgetc();	
 	      
 	      __n = min(__n, numeric_limits<streamsize>::max());
-	      while (_M_gcount < __n - 1 && !__testeof && !__testdelim)
+	      while (_M_gcount < __n  && __c !=__eof && __c != __delim)
 		{
+		  __c = __sb->snextc();
 		  ++_M_gcount;
-		  __c = __sb->sbumpc();
-		  __testeof = __c == __eof;
-		  __testdelim = __c == __idelim;
 		}
-	      if ((_M_gcount == __n - 1 && !__testeof) || __testdelim)
-		++_M_gcount;
-	      if (__testeof)
+	      if (__c == __eof)
 		this->setstate(ios_base::eofbit);
+	      else if (__c == __delim)
+		{
+		  __sb->snextc();
+		  ++_M_gcount;
+		}
 	    }
 	  catch(exception& __fail)
 	    {

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

@@ -51,7 +51,7 @@ namespace std
       int_type __ret;
       if (_M_in_cur && _M_in_cur < _M_in_end)
 	{
-	  char_type __c = *gptr();
+	  char_type __c = *(this->gptr());
 	  _M_in_cur_move(1);
 	  __ret = traits_type::to_int_type(__c);
 	}

libstdc++-v3/testsuite/27_io/istream_unformatted.cc

 // 1999-08-11 bkoz
 
-// Copyright (C) 1999, 2000, 2001 Free Software Foundation
+// Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation
 //
 // 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
@@ -463,7 +463,7 @@ test06()
 
 // bug reported by bgarcia@laurelnetworks.com
 // http://gcc.gnu.org/ml/libstdc++-prs/2000-q3/msg00041.html
-int
+void
 test07()
 {
   bool test = true;
@@ -481,9 +481,25 @@ test07()
       line = line_ss.str();
       VERIFY( line == "1234567890" || line == "" );
     }
-  return 0;
 }
- 
+
+// 2002-04-19 PR libstdc++ 6360
+void
+test08()
+{
+  using namespace std;
+  bool test = true;
+
+  stringstream ss("abcd" "\xFF" "1234ina donna coolbrith");  
+  char c;
+  ss >> c;
+  VERIFY( c == 'a' );
+  ss.ignore(8);
+  ss >> c;
+  VERIFY( c == 'i' );
+}
+    
+
 int 
 main()
 {
@@ -494,6 +510,7 @@ main()
   test05();
   test06();
   test07();
+  test08();
 
   return 0;
 }