fstream.tcc (_M_convert_to_external): Set __elen to zero if codecvt::out eventually fails.

2003-03-07  Paolo Carlini  <pcarlini@unitus.it>

	* include/bits/fstream.tcc (_M_convert_to_external):
	Set __elen to zero if codecvt::out eventually fails.

From-SVN: r63954

libstdc++-v3/ChangeLog

 2003-03-07  Paolo Carlini  <pcarlini@unitus.it>
 
+	* include/bits/fstream.tcc (_M_convert_to_external):
+	Set __elen to zero if codecvt::out eventually fails.
+
+2003-03-07  Paolo Carlini  <pcarlini@unitus.it>
+
 	PR libstdc++/9182
 	* include/bits/fstream.tcc (_M_really_overflow): Check
 	for _M_convert_to_external possible failures.

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

@@ -320,8 +320,13 @@ namespace std
 			      __iend, __buf, __buf + __blen, __bend);
 	      if (__r != codecvt_base::error)
 		__rlen = __bend - __buf;
-	      else 
-		__rlen = 0;
+	      else
+		{
+		  __rlen = 0;
+		  // Signal to the caller (_M_really_overflow) that
+		  // codecvt::out eventually failed.
+		  __elen = 0;		  
+		}
 	      if (__rlen)
 		{
 		  __elen += _M_file.xsputn(__buf, __rlen);