istream.tcc: Removed test for _M_gcount < in_avail()...

2000-10-05  Brent Verner  <brent@rcfile.org>

        * bits/istream.tcc [basic_istream::get(basic_streambuf&)]: Removed
	test for _M_gcount < in_avail(), as in_avail() only reports info
	for current buffer, causing method to return at end of buffer.
	* testsuite/27_io/istream_unformatted.cc [test07()]: New test.
	* testsuite/27_io/istream_unformatted-3.txt: New file.
	* testsuite/27_io/istream_unformatted-3.tst: New file.

From-SVN: r36752

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

@@ -588,9 +588,8 @@ namespace std {
 	    bool __testdelim = __c == __idelim;
 	    bool __testeof =  __c == __eof;
 	    bool __testput = true;
-	    streamsize __n = __this_sb->in_avail();
 
-	    while (_M_gcount <= __n && !__testeof && !__testdelim 
+	    while (!__testeof && !__testdelim 
 		   && (__testput = __sb.sputc(traits_type::to_char_type(__c)) 
 		       != __eof))
 	      {

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

@@ -452,6 +452,27 @@ test06()
   return 0;
 }
 
+// bug reported by bgarcia@laurelnetworks.com
+// http://sources.redhat.com/ml/libstdc++-prs/2000-q3/msg00041.html
+int
+test07()
+{
+  const char* tfn = "testsuite/istream_unformatted-3.txt";
+  std::ifstream infile;
+  infile.open(tfn);
+  VERIFY( infile );
+  while (infile)
+    {
+      std::string line;
+      std::ostringstream line_ss;
+      while (infile.peek() == '\n')
+	infile.get();
+      infile.get(*(line_ss.rdbuf()));
+      line = line_ss.str();
+      VERIFY( line == "1234567890" || line == "" );
+    }
+  return 0;
+}
  
 int 
 main()
@@ -462,6 +483,7 @@ main()
   test04();
   test05();
   test06();
+  test07();
 
   return 0;
 }