cpptrad.c: Update comment.

	* cpptrad.c: Update comment.
testsuite:
	* gcc.dg/cpp/trad/directive.c: Add test.
	* gcc.dg/cpp/trad/macroargs.c: Add test.
	* gcc.dg/cpp/trad/recurse-3.c: Add tests.

From-SVN: r55196

gcc/ChangeLog

+2002-07-03  Neil Booth  <neil@daikokuya.co.uk>
+
+	* cpptrad.c: Update comment.
+
 2002-07-02  Neil Booth  <neil@daikokuya.co.uk>
 	
 	* doc/cpp.texi: Update for traditional preprocessing changes.

gcc/cpptrad.c

@@ -491,7 +491,8 @@ scan_out_logical_line (pfile, macro)
 	  if ((lex_state == ls_fun_open || lex_state == ls_fun_close)
 	      && !pfile->state.in_directive)
 	    {
-	      /* Newlines in arguments become a space.  */
+	      /* Newlines in arguments become a space, but we don't
+		 clear any in-progress quote.  */
 	      if (lex_state == ls_fun_close)
 		out[-1] = ' ';
 	      continue;

gcc/testsuite/ChangeLog

+2002-07-03  Neil Booth  <neil@daikokuya.co.uk>
+
+	* gcc.dg/cpp/trad/directive.c: Add test.
+	* gcc.dg/cpp/trad/macroargs.c: Add test.
+	* gcc.dg/cpp/trad/recurse-3.c: Add tests.
+
 2002-07-02  Neil Booth  <neil@daikokuya.co.uk>
 
 	* gcc.dg/cpp/cmdlne-M.c: New test.

gcc/testsuite/gcc.dg/cpp/trad/directive.c

@@ -10,3 +10,11 @@
  #if 0	/* { dg-bogus "unterminated" } */
 
 #wrong	/* { dg-error "invalid" } */
+
+#define foo 2
+#define bar + 3
+#define foobar 6
+
+#if foo/**/bar != 5
+# error Comments in directive is a separator /* { dg-bogus "error" } */
+#endif

gcc/testsuite/gcc.dg/cpp/trad/macroargs.c

@@ -4,6 +4,7 @@
 /* { dg-do run } */
 
 #define f(x, y) "x y"
+#define g(x) x
 
 extern void abort (void);
 
@@ -20,5 +21,10 @@ foo
   if (strcmp (str1, str2))
     abort ();
 
+  /* Verify that quoted state is preserved over a newline.  */
+  if (strcmp (g /* { dg-bogus "unterminated 2" } */ ("1
+, 2"), "1 , 2"))	
+    abort ();
+
   return 0;
 }

gcc/testsuite/gcc.dg/cpp/trad/recurse-3.c

@@ -14,3 +14,12 @@ f(f,f,f,f,f,f,f,f,f)	       /* { dg-bogus "detected recursion" } */
    sources so let's try it too.  */
 #define foo(x,y) bar (x (y,0), y)
 foo (foo, baz);	       /* { dg-bogus "detected recursion" } */
+
+#define mac mac/**/ro
+mac		       /* { dg-bogus "detected recursion" } */
+
+#define mac2 mac2
+"mac2" 		       /* { dg-bogus "detected recursion" } */
+
+#define macro "macro
+macro mac2	       /* { dg-bogus "detected recursion" } */