(macroexpand): Treat `foo ( )' as 0 args if foo wants 0 args.

From-SVN: r4323

(macroexpand): Treat `foo ( )' as 0 args if foo wants 0 args.
From-SVN: r4323
148597b9 · Richard Stallman · 77cb8330 · 148597b9
Commit 148597b9 authored May 04, 1993 by Richard Stallman
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gcc/cccp.c
+4 -1

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--- a/gcc/cccp.c
+++ b/gcc/cccp.c
@@ -7067,7 +7067,10 @@ macroexpand (hp, op)
    if (i == 1) {
      register U_CHAR *bp = args[0].raw;
      register U_CHAR *lim = bp + args[0].raw_length;
-      while (bp != lim && is_space[*bp]) bp++;
+      /* cpp.texi says for foo ( ) we provide one argument.
+	 However, if foo wants just 0 arguments, treat this as 0.  */
+      if (nargs == 0)
+	while (bp != lim && is_space[*bp]) bp++;
      if (bp == lim)
 	i = 0;
    }