cppexp.c: Warn about unary + if -Wtraditional.

	* cppexp.c: Warn about unary + if -Wtraditional.
	* cpplex.c (lex_line): Always set BOL on the first token of a line.

From-SVN: r35239

gcc/ChangeLog

+2000-07-24  Zack Weinberg  <zack@wolery.cumb.org>
+
+	* cppexp.c: Warn about unary + if -Wtraditional.
+	* cpplex.c (lex_line): Always set BOL on the first token of a line.
+
 2000-07-24  Michael Meissner  <meissner@redhat.com>
 
 	* d30v.h (FUNCTION_ARG_KEEP_AS_REFERENCE): Delete references to

gcc/cppexp.c

@@ -849,6 +849,10 @@ _cpp_parse_expr (pfile)
 		  top->value = v2;
 		  top->unsignedp = unsigned2;
 		  top->flags |= HAVE_VALUE;
+
+		  if (CPP_WTRADITIONAL (pfile))
+		    cpp_warning (pfile,
+			"traditional C rejects the unary plus operator");
 		}
 	      else
 		{

gcc/cpplex.c

@@ -1881,10 +1881,8 @@ lex_line (pfile, list)
       cur_token++->type = CPP_EOF;
     }
 
-  /* Directives, known or not, always start a new line.  */
-  if (first_token == 0 || list->tokens[first_token].type == CPP_HASH)
-    first->flags |= BOL;
-  else
+  first->flags |= BOL;
+  if (first_token != 0)
     /* 6.10.3.10: Within the sequence of preprocessing tokens making
        up the invocation of a function-like macro, new line is
        considered a normal white-space character.  */