spew.c (yylex): Only copy the token's lineno, if it is non-zero.

cp:
	* spew.c (yylex): Only copy the token's lineno, if it is
	non-zero.
testsuite:
	* g++.old-deja/g++.other/lineno5.C: New test.

From-SVN: r44391

gcc/cp/ChangeLog

 2001-07-26  Nathan Sidwell  <nathan@codesourcery.com>
 
+	* spew.c (yylex): Only copy the token's lineno, if it is
+	non-zero.
+
+2001-07-26  Nathan Sidwell  <nathan@codesourcery.com>
+
 	PR c++/3624
 	* call.c (resolve_args): Simplify, call
 	convert_from_reference.

gcc/cp/spew.c

@@ -833,8 +833,13 @@ yylex ()
     got_object = NULL_TREE;
 
   yychar = yychr;
-  yylval = nth_token (0)->yylval;
-  lineno = nth_token (0)->lineno;
+  {
+    struct token *tok = nth_token (0);
+    
+    yylval = tok->yylval;
+    if (tok->lineno)
+      lineno = tok->lineno;
+  }
 
 #ifdef SPEW_DEBUG    
   if (spew_debug)

gcc/testsuite/ChangeLog

 2001-07-26  Nathan Sidwell  <nathan@codesourcery.com>
 
+	* g++.old-deja/g++.other/lineno5.C: New test.
+
+2001-07-26  Nathan Sidwell  <nathan@codesourcery.com>
+
 	* g++.old-deja/g++.pt/crash68.C: New test.
 
 2001-07-26  Nathan Sidwell  <nathan@codesourcery.com>

gcc/testsuite/g++.old-deja/g++.other/lineno5.C

+// Build don't link:
+// 
+// Copyright (C) 2001 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 25 Jul 2001 <nathan@codesourcery.com>
+
+// Origin: johanb@DoCS.UU.SE
+// Bug 3621. At the end of saved input, we'd set the lineno to
+// zero. This would confusing things no end, if there was a subsequent
+// error.
+
+namespace tmp {
+  typedef int B;
+  B b;
+}
+
+class A {
+  public:
+  int kaka(tmp::B = b);		// ERROR - no b in scope
+};