From: Richard Kenner <kenner@gcc.gnu.org>
Date: Tue, 12 Nov 1996 19:17:33 +0000 (-0500)
Subject: (grokdeclarator): Generate a warning if -Wimplicit, unless a warning
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=720283f2ebd1517cce58eb73f41701c2e4bc7fad;p=gcc.git

(grokdeclarator): Generate a warning if -Wimplicit, unless a warning
was already generated by -Wreturn-type.

From-SVN: r13135
---

diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index 13d6887d14d..accc0257e96 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -4277,10 +4277,20 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
 
   if (type == 0)
     {
-      if (funcdef_flag && warn_return_type
-	  && ! (specbits & ((1 << (int) RID_LONG) | (1 << (int) RID_SHORT)
-			    | (1 << (int) RID_SIGNED) | (1 << (int) RID_UNSIGNED))))
-	warn_about_return_type = 1;
+      if (! (specbits & ((1 << (int) RID_LONG) | (1 << (int) RID_SHORT)
+			 | (1 << (int) RID_SIGNED)
+			 | (1 << (int) RID_UNSIGNED))))
+	{
+	  /* C9x will probably require a diagnostic here.
+	     For now, issue a warning if -Wreturn-type and this is a function,
+	     or if -Wimplicit; prefer the former warning since it is more
+	     explicit.  */
+	  if ((warn_implicit || warn_return_type) && funcdef_flag)
+	    warn_about_return_type = 1;
+	  else if (warn_implicit)
+	    warning ("type defaults to `int' in declaration of `%s'", name);
+	}
+
       defaulted_int = 1;
       type = integer_type_node;
     }