From: Marcus Holland-Moritz <mhx-perl@gmx.net>
Date: Thu, 10 Feb 2005 20:50:31 +0000 (+0000)
Subject: [perl #34101] not() || 1 produces segmentation fault
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=a758b0b5fd9985d853637e2aa988519329533771;p=p5sagit%2Fp5-mst-13.2.git

[perl #34101] not() || 1 produces segmentation fault

Fixed by making not() behave like not(0). This is also the
way not() behaved before it started segfaulting in 5.6.0.

p4raw-id: //depot/perl@23960
---

diff --git a/MANIFEST b/MANIFEST
index db8a898..2938dee 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -2718,6 +2718,7 @@ t/op/mkdir.t			See if mkdir works
 t/op/mydef.t			See if "my $_" works
 t/op/my_stash.t			See if my Package works
 t/op/my.t			See if lexical scoping works
+t/op/not.t			See if not works
 t/op/numconvert.t		See if accessing fields does not change numeric values
 t/op/oct.t			See if oct and hex work
 t/op/ord.t			See if ord works
diff --git a/perly.act b/perly.act
index bfb3922..9adab55 100644
--- a/perly.act
+++ b/perly.act
@@ -1,75 +1,75 @@
 case 2:
 #line 97 "perly.y"
-    { yyval.ival = yyvsp[-1].ival; newPROG(block_end(yyvsp[-1].ival,yyvsp[0].opval)); ;}
+    { (yyval.ival) = (yyvsp[-1].ival); newPROG(block_end((yyvsp[-1].ival),(yyvsp[0].opval))); ;}
     break;
 
   case 3:
 #line 102 "perly.y"
-    { if (PL_copline > (line_t)yyvsp[-3].ival)
-			      PL_copline = (line_t)yyvsp[-3].ival;
-			  yyval.opval = block_end(yyvsp[-2].ival, yyvsp[-1].opval); ;}
+    { if (PL_copline > (line_t)(yyvsp[-3].ival))
+			      PL_copline = (line_t)(yyvsp[-3].ival);
+			  (yyval.opval) = block_end((yyvsp[-2].ival), (yyvsp[-1].opval)); ;}
     break;
 
   case 4:
 #line 108 "perly.y"
-    { yyval.ival = block_start(TRUE); ;}
+    { (yyval.ival) = block_start(TRUE); ;}
     break;
 
   case 5:
 #line 112 "perly.y"
     {
-		    PL_expect = XSTATE; yyval.ival = block_start(TRUE);
+		    PL_expect = XSTATE; (yyval.ival) = block_start(TRUE);
 		;}
     break;
 
   case 6:
 #line 119 "perly.y"
-    { if (PL_copline > (line_t)yyvsp[-3].ival)
-			      PL_copline = (line_t)yyvsp[-3].ival;
-			  yyval.opval = block_end(yyvsp[-2].ival, yyvsp[-1].opval); ;}
+    { if (PL_copline > (line_t)(yyvsp[-3].ival))
+			      PL_copline = (line_t)(yyvsp[-3].ival);
+			  (yyval.opval) = block_end((yyvsp[-2].ival), (yyvsp[-1].opval)); ;}
     break;
 
   case 7:
 #line 125 "perly.y"
-    { yyval.ival = block_start(FALSE); ;}
+    { (yyval.ival) = block_start(FALSE); ;}
     break;
 
   case 8:
 #line 129 "perly.y"
-    { yyval.ival = PL_savestack_ix; ;}
+    { (yyval.ival) = PL_savestack_ix; ;}
     break;
 
   case 9:
 #line 133 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 10:
 #line 135 "perly.y"
-    { yyval.opval = yyvsp[-1].opval; ;}
+    { (yyval.opval) = (yyvsp[-1].opval); ;}
     break;
 
   case 11:
 #line 137 "perly.y"
-    {   LEAVE_SCOPE(yyvsp[-1].ival);
-			    yyval.opval = append_list(OP_LINESEQ,
-				(LISTOP*)yyvsp[-2].opval, (LISTOP*)yyvsp[0].opval);
+    {   LEAVE_SCOPE((yyvsp[-1].ival));
+			    (yyval.opval) = append_list(OP_LINESEQ,
+				(LISTOP*)(yyvsp[-2].opval), (LISTOP*)(yyvsp[0].opval));
 			    PL_pad_reset_pending = TRUE;
-			    if (yyvsp[-2].opval && yyvsp[0].opval) PL_hints |= HINT_BLOCK_SCOPE; ;}
+			    if ((yyvsp[-2].opval) && (yyvsp[0].opval)) PL_hints |= HINT_BLOCK_SCOPE; ;}
     break;
 
   case 12:
 #line 146 "perly.y"
-    { yyval.opval = newSTATEOP(0, yyvsp[-1].pval, yyvsp[0].opval); ;}
+    { (yyval.opval) = newSTATEOP(0, (yyvsp[-1].pval), (yyvsp[0].opval)); ;}
     break;
 
   case 14:
 #line 149 "perly.y"
-    { if (yyvsp[-1].pval != Nullch) {
-			      yyval.opval = newSTATEOP(0, yyvsp[-1].pval, newOP(OP_NULL, 0));
+    { if ((yyvsp[-1].pval) != Nullch) {
+			      (yyval.opval) = newSTATEOP(0, (yyvsp[-1].pval), newOP(OP_NULL, 0));
 			    }
 			    else {
-			      yyval.opval = Nullop;
+			      (yyval.opval) = Nullop;
 			      PL_copline = NOLINE;
 			    }
 			    PL_expect = XSTATE; ;}
@@ -77,306 +77,306 @@ case 2:
 
   case 15:
 #line 158 "perly.y"
-    { yyval.opval = newSTATEOP(0, yyvsp[-2].pval, yyvsp[-1].opval);
+    { (yyval.opval) = newSTATEOP(0, (yyvsp[-2].pval), (yyvsp[-1].opval));
 			  PL_expect = XSTATE; ;}
     break;
 
   case 16:
 #line 164 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 17:
 #line 166 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 18:
 #line 168 "perly.y"
-    { yyval.opval = newLOGOP(OP_AND, 0, yyvsp[0].opval, yyvsp[-2].opval); ;}
+    { (yyval.opval) = newLOGOP(OP_AND, 0, (yyvsp[0].opval), (yyvsp[-2].opval)); ;}
     break;
 
   case 19:
 #line 170 "perly.y"
-    { yyval.opval = newLOGOP(OP_OR, 0, yyvsp[0].opval, yyvsp[-2].opval); ;}
+    { (yyval.opval) = newLOGOP(OP_OR, 0, (yyvsp[0].opval), (yyvsp[-2].opval)); ;}
     break;
 
   case 20:
 #line 172 "perly.y"
-    { yyval.opval = newLOOPOP(OPf_PARENS, 1, scalar(yyvsp[0].opval), yyvsp[-2].opval); ;}
+    { (yyval.opval) = newLOOPOP(OPf_PARENS, 1, scalar((yyvsp[0].opval)), (yyvsp[-2].opval)); ;}
     break;
 
   case 21:
 #line 174 "perly.y"
-    { yyval.opval = newLOOPOP(OPf_PARENS, 1, yyvsp[0].opval, yyvsp[-2].opval);;}
+    { (yyval.opval) = newLOOPOP(OPf_PARENS, 1, (yyvsp[0].opval), (yyvsp[-2].opval));;}
     break;
 
   case 22:
 #line 176 "perly.y"
-    { yyval.opval = newFOROP(0, Nullch, (line_t)yyvsp[-1].ival,
-					Nullop, yyvsp[0].opval, yyvsp[-2].opval, Nullop); ;}
+    { (yyval.opval) = newFOROP(0, Nullch, (line_t)(yyvsp[-1].ival),
+					Nullop, (yyvsp[0].opval), (yyvsp[-2].opval), Nullop); ;}
     break;
 
   case 23:
 #line 182 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 24:
 #line 184 "perly.y"
-    { (yyvsp[0].opval)->op_flags |= OPf_PARENS; yyval.opval = scope(yyvsp[0].opval); ;}
+    { ((yyvsp[0].opval))->op_flags |= OPf_PARENS; (yyval.opval) = scope((yyvsp[0].opval)); ;}
     break;
 
   case 25:
 #line 186 "perly.y"
-    { PL_copline = (line_t)yyvsp[-5].ival;
-			    yyval.opval = newCONDOP(0, yyvsp[-3].opval, scope(yyvsp[-1].opval), yyvsp[0].opval);
+    { PL_copline = (line_t)(yyvsp[-5].ival);
+			    (yyval.opval) = newCONDOP(0, (yyvsp[-3].opval), scope((yyvsp[-1].opval)), (yyvsp[0].opval));
 			    PL_hints |= HINT_BLOCK_SCOPE; ;}
     break;
 
   case 26:
 #line 193 "perly.y"
-    { PL_copline = (line_t)yyvsp[-6].ival;
-			    yyval.opval = block_end(yyvsp[-4].ival,
-				   newCONDOP(0, yyvsp[-3].opval, scope(yyvsp[-1].opval), yyvsp[0].opval)); ;}
+    { PL_copline = (line_t)(yyvsp[-6].ival);
+			    (yyval.opval) = block_end((yyvsp[-4].ival),
+				   newCONDOP(0, (yyvsp[-3].opval), scope((yyvsp[-1].opval)), (yyvsp[0].opval))); ;}
     break;
 
   case 27:
 #line 197 "perly.y"
-    { PL_copline = (line_t)yyvsp[-6].ival;
-			    yyval.opval = block_end(yyvsp[-4].ival,
-				   newCONDOP(0, yyvsp[-3].opval, scope(yyvsp[-1].opval), yyvsp[0].opval)); ;}
+    { PL_copline = (line_t)(yyvsp[-6].ival);
+			    (yyval.opval) = block_end((yyvsp[-4].ival),
+				   newCONDOP(0, (yyvsp[-3].opval), scope((yyvsp[-1].opval)), (yyvsp[0].opval))); ;}
     break;
 
   case 28:
 #line 204 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 29:
 #line 206 "perly.y"
-    { yyval.opval = scope(yyvsp[0].opval); ;}
+    { (yyval.opval) = scope((yyvsp[0].opval)); ;}
     break;
 
   case 30:
 #line 211 "perly.y"
-    { PL_copline = (line_t)yyvsp[-6].ival;
-			    yyval.opval = block_end(yyvsp[-4].ival,
-				   newSTATEOP(0, yyvsp[-7].pval,
+    { PL_copline = (line_t)(yyvsp[-6].ival);
+			    (yyval.opval) = block_end((yyvsp[-4].ival),
+				   newSTATEOP(0, (yyvsp[-7].pval),
 				     newWHILEOP(0, 1, (LOOP*)Nullop,
-						yyvsp[-6].ival, yyvsp[-3].opval, yyvsp[-1].opval, yyvsp[0].opval))); ;}
+						(yyvsp[-6].ival), (yyvsp[-3].opval), (yyvsp[-1].opval), (yyvsp[0].opval)))); ;}
     break;
 
   case 31:
 #line 217 "perly.y"
-    { PL_copline = (line_t)yyvsp[-6].ival;
-			    yyval.opval = block_end(yyvsp[-4].ival,
-				   newSTATEOP(0, yyvsp[-7].pval,
+    { PL_copline = (line_t)(yyvsp[-6].ival);
+			    (yyval.opval) = block_end((yyvsp[-4].ival),
+				   newSTATEOP(0, (yyvsp[-7].pval),
 				     newWHILEOP(0, 1, (LOOP*)Nullop,
-						yyvsp[-6].ival, yyvsp[-3].opval, yyvsp[-1].opval, yyvsp[0].opval))); ;}
+						(yyvsp[-6].ival), (yyvsp[-3].opval), (yyvsp[-1].opval), (yyvsp[0].opval)))); ;}
     break;
 
   case 32:
 #line 223 "perly.y"
-    { yyval.opval = block_end(yyvsp[-6].ival,
-				 newFOROP(0, yyvsp[-9].pval, (line_t)yyvsp[-8].ival, yyvsp[-5].opval, yyvsp[-3].opval, yyvsp[-1].opval, yyvsp[0].opval)); ;}
+    { (yyval.opval) = block_end((yyvsp[-6].ival),
+				 newFOROP(0, (yyvsp[-9].pval), (line_t)(yyvsp[-8].ival), (yyvsp[-5].opval), (yyvsp[-3].opval), (yyvsp[-1].opval), (yyvsp[0].opval))); ;}
     break;
 
   case 33:
 #line 226 "perly.y"
-    { yyval.opval = block_end(yyvsp[-4].ival,
-				 newFOROP(0, yyvsp[-8].pval, (line_t)yyvsp[-7].ival, mod(yyvsp[-6].opval, OP_ENTERLOOP),
-					  yyvsp[-3].opval, yyvsp[-1].opval, yyvsp[0].opval)); ;}
+    { (yyval.opval) = block_end((yyvsp[-4].ival),
+				 newFOROP(0, (yyvsp[-8].pval), (line_t)(yyvsp[-7].ival), mod((yyvsp[-6].opval), OP_ENTERLOOP),
+					  (yyvsp[-3].opval), (yyvsp[-1].opval), (yyvsp[0].opval))); ;}
     break;
 
   case 34:
 #line 230 "perly.y"
-    { yyval.opval = block_end(yyvsp[-4].ival,
-				 newFOROP(0, yyvsp[-7].pval, (line_t)yyvsp[-6].ival, Nullop, yyvsp[-3].opval, yyvsp[-1].opval, yyvsp[0].opval)); ;}
+    { (yyval.opval) = block_end((yyvsp[-4].ival),
+				 newFOROP(0, (yyvsp[-7].pval), (line_t)(yyvsp[-6].ival), Nullop, (yyvsp[-3].opval), (yyvsp[-1].opval), (yyvsp[0].opval))); ;}
     break;
 
   case 35:
 #line 234 "perly.y"
     { OP *forop;
-			  PL_copline = (line_t)yyvsp[-9].ival;
-			  forop = newSTATEOP(0, yyvsp[-10].pval,
+			  PL_copline = (line_t)(yyvsp[-9].ival);
+			  forop = newSTATEOP(0, (yyvsp[-10].pval),
 					    newWHILEOP(0, 1, (LOOP*)Nullop,
-						yyvsp[-9].ival, scalar(yyvsp[-4].opval),
-						yyvsp[0].opval, yyvsp[-2].opval));
-			  if (yyvsp[-6].opval) {
+						(yyvsp[-9].ival), scalar((yyvsp[-4].opval)),
+						(yyvsp[0].opval), (yyvsp[-2].opval)));
+			  if ((yyvsp[-6].opval)) {
 				forop = append_elem(OP_LINESEQ,
-                                        newSTATEOP(0, (yyvsp[-10].pval?savepv(yyvsp[-10].pval):Nullch),
-						   yyvsp[-6].opval),
+                                        newSTATEOP(0, ((yyvsp[-10].pval)?savepv((yyvsp[-10].pval)):Nullch),
+						   (yyvsp[-6].opval)),
 					forop);
 			  }
 
-			  yyval.opval = block_end(yyvsp[-7].ival, forop); ;}
+			  (yyval.opval) = block_end((yyvsp[-7].ival), forop); ;}
     break;
 
   case 36:
 #line 249 "perly.y"
-    { yyval.opval = newSTATEOP(0, yyvsp[-2].pval,
+    { (yyval.opval) = newSTATEOP(0, (yyvsp[-2].pval),
 				 newWHILEOP(0, 1, (LOOP*)Nullop,
-					    NOLINE, Nullop, yyvsp[-1].opval, yyvsp[0].opval)); ;}
+					    NOLINE, Nullop, (yyvsp[-1].opval), (yyvsp[0].opval))); ;}
     break;
 
   case 37:
 #line 256 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 39:
 #line 262 "perly.y"
-    { (void)scan_num("1", &yylval); yyval.opval = yylval.opval; ;}
+    { (void)scan_num("1", &yylval); (yyval.opval) = yylval.opval; ;}
     break;
 
   case 41:
 #line 268 "perly.y"
-    { yyval.opval = invert(scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = invert(scalar((yyvsp[0].opval))); ;}
     break;
 
   case 42:
 #line 273 "perly.y"
-    { yyval.opval = yyvsp[0].opval; intro_my(); ;}
+    { (yyval.opval) = (yyvsp[0].opval); intro_my(); ;}
     break;
 
   case 43:
 #line 277 "perly.y"
-    { yyval.opval = yyvsp[0].opval; intro_my(); ;}
+    { (yyval.opval) = (yyvsp[0].opval); intro_my(); ;}
     break;
 
   case 44:
 #line 281 "perly.y"
-    { yyval.opval = yyvsp[0].opval; intro_my(); ;}
+    { (yyval.opval) = (yyvsp[0].opval); intro_my(); ;}
     break;
 
   case 45:
 #line 285 "perly.y"
-    { yyval.opval = yyvsp[0].opval; intro_my(); ;}
+    { (yyval.opval) = (yyvsp[0].opval); intro_my(); ;}
     break;
 
   case 46:
 #line 290 "perly.y"
-    { yyval.pval = Nullch; ;}
+    { (yyval.pval) = Nullch; ;}
     break;
 
   case 48:
 #line 296 "perly.y"
-    { yyval.ival = 0; ;}
+    { (yyval.ival) = 0; ;}
     break;
 
   case 49:
 #line 298 "perly.y"
-    { yyval.ival = 0; ;}
+    { (yyval.ival) = 0; ;}
     break;
 
   case 50:
 #line 300 "perly.y"
-    { yyval.ival = 0; ;}
+    { (yyval.ival) = 0; ;}
     break;
 
   case 51:
 #line 302 "perly.y"
-    { yyval.ival = 0; ;}
+    { (yyval.ival) = 0; ;}
     break;
 
   case 52:
 #line 304 "perly.y"
-    { yyval.ival = 0; ;}
+    { (yyval.ival) = 0; ;}
     break;
 
   case 53:
 #line 308 "perly.y"
-    { newFORM(yyvsp[-2].ival, yyvsp[-1].opval, yyvsp[0].opval); ;}
+    { newFORM((yyvsp[-2].ival), (yyvsp[-1].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 54:
 #line 311 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 55:
 #line 312 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 56:
 #line 317 "perly.y"
-    { newMYSUB(yyvsp[-4].ival, yyvsp[-3].opval, yyvsp[-2].opval, yyvsp[-1].opval, yyvsp[0].opval); ;}
+    { newMYSUB((yyvsp[-4].ival), (yyvsp[-3].opval), (yyvsp[-2].opval), (yyvsp[-1].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 57:
 #line 322 "perly.y"
-    { newATTRSUB(yyvsp[-4].ival, yyvsp[-3].opval, yyvsp[-2].opval, yyvsp[-1].opval, yyvsp[0].opval); ;}
+    { newATTRSUB((yyvsp[-4].ival), (yyvsp[-3].opval), (yyvsp[-2].opval), (yyvsp[-1].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 58:
 #line 326 "perly.y"
-    { yyval.ival = start_subparse(FALSE, 0); ;}
+    { (yyval.ival) = start_subparse(FALSE, 0); ;}
     break;
 
   case 59:
 #line 330 "perly.y"
-    { yyval.ival = start_subparse(FALSE, CVf_ANON); ;}
+    { (yyval.ival) = start_subparse(FALSE, CVf_ANON); ;}
     break;
 
   case 60:
 #line 334 "perly.y"
-    { yyval.ival = start_subparse(TRUE, 0); ;}
+    { (yyval.ival) = start_subparse(TRUE, 0); ;}
     break;
 
   case 61:
 #line 338 "perly.y"
-    { STRLEN n_a; char *name = SvPV(((SVOP*)yyvsp[0].opval)->op_sv,n_a);
+    { STRLEN n_a; char *name = SvPV(((SVOP*)(yyvsp[0].opval))->op_sv,n_a);
 			  if (strEQ(name, "BEGIN") || strEQ(name, "END")
 			      || strEQ(name, "INIT") || strEQ(name, "CHECK"))
 			      CvSPECIAL_on(PL_compcv);
-			  yyval.opval = yyvsp[0].opval; ;}
+			  (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 62:
 #line 347 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 64:
 #line 353 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 65:
 #line 355 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 66:
 #line 357 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 67:
 #line 362 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 68:
 #line 364 "perly.y"
-    { yyval.opval = Nullop; ;}
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 69:
 #line 368 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 70:
 #line 369 "perly.y"
-    { yyval.opval = Nullop; PL_expect = XSTATE; ;}
+    { (yyval.opval) = Nullop; PL_expect = XSTATE; ;}
     break;
 
   case 71:
 #line 373 "perly.y"
-    { package(yyvsp[-1].opval); ;}
+    { package((yyvsp[-1].opval)); ;}
     break;
 
   case 72:
@@ -386,658 +386,659 @@ case 2:
 
   case 73:
 #line 379 "perly.y"
-    { utilize(yyvsp[-6].ival, yyvsp[-5].ival, yyvsp[-3].opval, yyvsp[-2].opval, yyvsp[-1].opval); ;}
+    { utilize((yyvsp[-6].ival), (yyvsp[-5].ival), (yyvsp[-3].opval), (yyvsp[-2].opval), (yyvsp[-1].opval)); ;}
     break;
 
   case 74:
 #line 384 "perly.y"
-    { yyval.opval = newLOGOP(OP_AND, 0, yyvsp[-2].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = newLOGOP(OP_AND, 0, (yyvsp[-2].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 75:
 #line 386 "perly.y"
-    { yyval.opval = newLOGOP(yyvsp[-1].ival, 0, yyvsp[-2].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = newLOGOP((yyvsp[-1].ival), 0, (yyvsp[-2].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 76:
 #line 388 "perly.y"
-    { yyval.opval = newLOGOP(OP_DOR, 0, yyvsp[-2].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = newLOGOP(OP_DOR, 0, (yyvsp[-2].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 78:
 #line 394 "perly.y"
-    { yyval.opval = yyvsp[-1].opval; ;}
+    { (yyval.opval) = (yyvsp[-1].opval); ;}
     break;
 
   case 79:
 #line 396 "perly.y"
-    { yyval.opval = append_elem(OP_LIST, yyvsp[-2].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = append_elem(OP_LIST, (yyvsp[-2].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 81:
 #line 402 "perly.y"
-    { yyval.opval = convert(yyvsp[-2].ival, OPf_STACKED,
-				prepend_elem(OP_LIST, newGVREF(yyvsp[-2].ival,yyvsp[-1].opval), yyvsp[0].opval) ); ;}
+    { (yyval.opval) = convert((yyvsp[-2].ival), OPf_STACKED,
+				prepend_elem(OP_LIST, newGVREF((yyvsp[-2].ival),(yyvsp[-1].opval)), (yyvsp[0].opval)) ); ;}
     break;
 
   case 82:
 #line 405 "perly.y"
-    { yyval.opval = convert(yyvsp[-4].ival, OPf_STACKED,
-				prepend_elem(OP_LIST, newGVREF(yyvsp[-4].ival,yyvsp[-2].opval), yyvsp[-1].opval) ); ;}
+    { (yyval.opval) = convert((yyvsp[-4].ival), OPf_STACKED,
+				prepend_elem(OP_LIST, newGVREF((yyvsp[-4].ival),(yyvsp[-2].opval)), (yyvsp[-1].opval)) ); ;}
     break;
 
   case 83:
 #line 408 "perly.y"
-    { yyval.opval = convert(OP_ENTERSUB, OPf_STACKED,
+    { (yyval.opval) = convert(OP_ENTERSUB, OPf_STACKED,
 				append_elem(OP_LIST,
-				    prepend_elem(OP_LIST, scalar(yyvsp[-5].opval), yyvsp[-1].opval),
-				    newUNOP(OP_METHOD, 0, yyvsp[-3].opval))); ;}
+				    prepend_elem(OP_LIST, scalar((yyvsp[-5].opval)), (yyvsp[-1].opval)),
+				    newUNOP(OP_METHOD, 0, (yyvsp[-3].opval)))); ;}
     break;
 
   case 84:
 #line 413 "perly.y"
-    { yyval.opval = convert(OP_ENTERSUB, OPf_STACKED,
-				append_elem(OP_LIST, scalar(yyvsp[-2].opval),
-				    newUNOP(OP_METHOD, 0, yyvsp[0].opval))); ;}
+    { (yyval.opval) = convert(OP_ENTERSUB, OPf_STACKED,
+				append_elem(OP_LIST, scalar((yyvsp[-2].opval)),
+				    newUNOP(OP_METHOD, 0, (yyvsp[0].opval)))); ;}
     break;
 
   case 85:
 #line 417 "perly.y"
-    { yyval.opval = convert(OP_ENTERSUB, OPf_STACKED,
+    { (yyval.opval) = convert(OP_ENTERSUB, OPf_STACKED,
 				append_elem(OP_LIST,
-				    prepend_elem(OP_LIST, yyvsp[-1].opval, yyvsp[0].opval),
-				    newUNOP(OP_METHOD, 0, yyvsp[-2].opval))); ;}
+				    prepend_elem(OP_LIST, (yyvsp[-1].opval), (yyvsp[0].opval)),
+				    newUNOP(OP_METHOD, 0, (yyvsp[-2].opval)))); ;}
     break;
 
   case 86:
 #line 422 "perly.y"
-    { yyval.opval = convert(OP_ENTERSUB, OPf_STACKED,
+    { (yyval.opval) = convert(OP_ENTERSUB, OPf_STACKED,
 				append_elem(OP_LIST,
-				    prepend_elem(OP_LIST, yyvsp[-3].opval, yyvsp[-1].opval),
-				    newUNOP(OP_METHOD, 0, yyvsp[-4].opval))); ;}
+				    prepend_elem(OP_LIST, (yyvsp[-3].opval), (yyvsp[-1].opval)),
+				    newUNOP(OP_METHOD, 0, (yyvsp[-4].opval)))); ;}
     break;
 
   case 87:
 #line 427 "perly.y"
-    { yyval.opval = convert(yyvsp[-1].ival, 0, yyvsp[0].opval); ;}
+    { (yyval.opval) = convert((yyvsp[-1].ival), 0, (yyvsp[0].opval)); ;}
     break;
 
   case 88:
 #line 429 "perly.y"
-    { yyval.opval = convert(yyvsp[-3].ival, 0, yyvsp[-1].opval); ;}
+    { (yyval.opval) = convert((yyvsp[-3].ival), 0, (yyvsp[-1].opval)); ;}
     break;
 
   case 89:
 #line 431 "perly.y"
-    { yyvsp[0].opval = newANONATTRSUB(yyvsp[-1].ival, 0, Nullop, yyvsp[0].opval); ;}
+    { (yyvsp[0].opval) = newANONATTRSUB((yyvsp[-1].ival), 0, Nullop, (yyvsp[0].opval)); ;}
     break;
 
   case 90:
 #line 433 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED,
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED,
 				 append_elem(OP_LIST,
-				   prepend_elem(OP_LIST, yyvsp[-2].opval, yyvsp[0].opval), yyvsp[-4].opval)); ;}
+				   prepend_elem(OP_LIST, (yyvsp[-2].opval), (yyvsp[0].opval)), (yyvsp[-4].opval))); ;}
     break;
 
   case 93:
 #line 447 "perly.y"
-    { yyval.opval = newBINOP(OP_GELEM, 0, yyvsp[-4].opval, scalar(yyvsp[-2].opval));
+    { (yyval.opval) = newBINOP(OP_GELEM, 0, (yyvsp[-4].opval), scalar((yyvsp[-2].opval)));
 			    PL_expect = XOPERATOR; ;}
     break;
 
   case 94:
 #line 450 "perly.y"
-    { yyval.opval = newBINOP(OP_AELEM, 0, oopsAV(yyvsp[-3].opval), scalar(yyvsp[-1].opval)); ;}
+    { (yyval.opval) = newBINOP(OP_AELEM, 0, oopsAV((yyvsp[-3].opval)), scalar((yyvsp[-1].opval))); ;}
     break;
 
   case 95:
 #line 452 "perly.y"
-    { yyval.opval = newBINOP(OP_AELEM, 0,
-					ref(newAVREF(yyvsp[-4].opval),OP_RV2AV),
-					scalar(yyvsp[-1].opval));;}
+    { (yyval.opval) = newBINOP(OP_AELEM, 0,
+					ref(newAVREF((yyvsp[-4].opval)),OP_RV2AV),
+					scalar((yyvsp[-1].opval)));;}
     break;
 
   case 96:
 #line 456 "perly.y"
-    { yyval.opval = newBINOP(OP_AELEM, 0,
-					ref(newAVREF(yyvsp[-3].opval),OP_RV2AV),
-					scalar(yyvsp[-1].opval));;}
+    { (yyval.opval) = newBINOP(OP_AELEM, 0,
+					ref(newAVREF((yyvsp[-3].opval)),OP_RV2AV),
+					scalar((yyvsp[-1].opval)));;}
     break;
 
   case 97:
 #line 460 "perly.y"
-    { yyval.opval = newBINOP(OP_HELEM, 0, oopsHV(yyvsp[-4].opval), jmaybe(yyvsp[-2].opval));
+    { (yyval.opval) = newBINOP(OP_HELEM, 0, oopsHV((yyvsp[-4].opval)), jmaybe((yyvsp[-2].opval)));
 			    PL_expect = XOPERATOR; ;}
     break;
 
   case 98:
 #line 463 "perly.y"
-    { yyval.opval = newBINOP(OP_HELEM, 0,
-					ref(newHVREF(yyvsp[-5].opval),OP_RV2HV),
-					jmaybe(yyvsp[-2].opval));
+    { (yyval.opval) = newBINOP(OP_HELEM, 0,
+					ref(newHVREF((yyvsp[-5].opval)),OP_RV2HV),
+					jmaybe((yyvsp[-2].opval)));
 			    PL_expect = XOPERATOR; ;}
     break;
 
   case 99:
 #line 468 "perly.y"
-    { yyval.opval = newBINOP(OP_HELEM, 0,
-					ref(newHVREF(yyvsp[-4].opval),OP_RV2HV),
-					jmaybe(yyvsp[-2].opval));
+    { (yyval.opval) = newBINOP(OP_HELEM, 0,
+					ref(newHVREF((yyvsp[-4].opval)),OP_RV2HV),
+					jmaybe((yyvsp[-2].opval)));
 			    PL_expect = XOPERATOR; ;}
     break;
 
   case 100:
 #line 473 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED,
-				   newCVREF(0, scalar(yyvsp[-3].opval))); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED,
+				   newCVREF(0, scalar((yyvsp[-3].opval)))); ;}
     break;
 
   case 101:
 #line 476 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED,
-				   append_elem(OP_LIST, yyvsp[-1].opval,
-				       newCVREF(0, scalar(yyvsp[-4].opval)))); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED,
+				   append_elem(OP_LIST, (yyvsp[-1].opval),
+				       newCVREF(0, scalar((yyvsp[-4].opval))))); ;}
     break;
 
   case 102:
 #line 481 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED,
-				   append_elem(OP_LIST, yyvsp[-1].opval,
-					       newCVREF(0, scalar(yyvsp[-3].opval)))); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED,
+				   append_elem(OP_LIST, (yyvsp[-1].opval),
+					       newCVREF(0, scalar((yyvsp[-3].opval))))); ;}
     break;
 
   case 103:
 #line 485 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED,
-				   newCVREF(0, scalar(yyvsp[-2].opval))); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED,
+				   newCVREF(0, scalar((yyvsp[-2].opval)))); ;}
     break;
 
   case 104:
 #line 491 "perly.y"
-    { yyval.opval = newASSIGNOP(OPf_STACKED, yyvsp[-2].opval, yyvsp[-1].ival, yyvsp[0].opval); ;}
+    { (yyval.opval) = newASSIGNOP(OPf_STACKED, (yyvsp[-2].opval), (yyvsp[-1].ival), (yyvsp[0].opval)); ;}
     break;
 
   case 105:
 #line 493 "perly.y"
-    { yyval.opval = newBINOP(yyvsp[-1].ival, 0, scalar(yyvsp[-2].opval), scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newBINOP((yyvsp[-1].ival), 0, scalar((yyvsp[-2].opval)), scalar((yyvsp[0].opval))); ;}
     break;
 
   case 106:
 #line 495 "perly.y"
-    {   if (yyvsp[-1].ival != OP_REPEAT)
-				scalar(yyvsp[-2].opval);
-			    yyval.opval = newBINOP(yyvsp[-1].ival, 0, yyvsp[-2].opval, scalar(yyvsp[0].opval)); ;}
+    {   if ((yyvsp[-1].ival) != OP_REPEAT)
+				scalar((yyvsp[-2].opval));
+			    (yyval.opval) = newBINOP((yyvsp[-1].ival), 0, (yyvsp[-2].opval), scalar((yyvsp[0].opval))); ;}
     break;
 
   case 107:
 #line 499 "perly.y"
-    { yyval.opval = newBINOP(yyvsp[-1].ival, 0, scalar(yyvsp[-2].opval), scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newBINOP((yyvsp[-1].ival), 0, scalar((yyvsp[-2].opval)), scalar((yyvsp[0].opval))); ;}
     break;
 
   case 108:
 #line 501 "perly.y"
-    { yyval.opval = newBINOP(yyvsp[-1].ival, 0, scalar(yyvsp[-2].opval), scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newBINOP((yyvsp[-1].ival), 0, scalar((yyvsp[-2].opval)), scalar((yyvsp[0].opval))); ;}
     break;
 
   case 109:
 #line 503 "perly.y"
-    { yyval.opval = newBINOP(yyvsp[-1].ival, 0, scalar(yyvsp[-2].opval), scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newBINOP((yyvsp[-1].ival), 0, scalar((yyvsp[-2].opval)), scalar((yyvsp[0].opval))); ;}
     break;
 
   case 110:
 #line 505 "perly.y"
-    { yyval.opval = newBINOP(yyvsp[-1].ival, 0, scalar(yyvsp[-2].opval), scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newBINOP((yyvsp[-1].ival), 0, scalar((yyvsp[-2].opval)), scalar((yyvsp[0].opval))); ;}
     break;
 
   case 111:
 #line 507 "perly.y"
-    { yyval.opval = newBINOP(yyvsp[-1].ival, 0, scalar(yyvsp[-2].opval), scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newBINOP((yyvsp[-1].ival), 0, scalar((yyvsp[-2].opval)), scalar((yyvsp[0].opval))); ;}
     break;
 
   case 112:
 #line 509 "perly.y"
-    { yyval.opval = newBINOP(yyvsp[-1].ival, 0, scalar(yyvsp[-2].opval), scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newBINOP((yyvsp[-1].ival), 0, scalar((yyvsp[-2].opval)), scalar((yyvsp[0].opval))); ;}
     break;
 
   case 113:
 #line 511 "perly.y"
-    { yyval.opval = newRANGE(yyvsp[-1].ival, scalar(yyvsp[-2].opval), scalar(yyvsp[0].opval));;}
+    { (yyval.opval) = newRANGE((yyvsp[-1].ival), scalar((yyvsp[-2].opval)), scalar((yyvsp[0].opval)));;}
     break;
 
   case 114:
 #line 513 "perly.y"
-    { yyval.opval = newLOGOP(OP_AND, 0, yyvsp[-2].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = newLOGOP(OP_AND, 0, (yyvsp[-2].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 115:
 #line 515 "perly.y"
-    { yyval.opval = newLOGOP(OP_OR, 0, yyvsp[-2].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = newLOGOP(OP_OR, 0, (yyvsp[-2].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 116:
 #line 517 "perly.y"
-    { yyval.opval = newLOGOP(OP_DOR, 0, yyvsp[-2].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = newLOGOP(OP_DOR, 0, (yyvsp[-2].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 117:
 #line 519 "perly.y"
-    { yyval.opval = bind_match(yyvsp[-1].ival, yyvsp[-2].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = bind_match((yyvsp[-1].ival), (yyvsp[-2].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 118:
 #line 524 "perly.y"
-    { yyval.opval = newUNOP(OP_NEGATE, 0, scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newUNOP(OP_NEGATE, 0, scalar((yyvsp[0].opval))); ;}
     break;
 
   case 119:
 #line 526 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 120:
 #line 528 "perly.y"
-    { yyval.opval = newUNOP(OP_NOT, 0, scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newUNOP(OP_NOT, 0, scalar((yyvsp[0].opval))); ;}
     break;
 
   case 121:
 #line 530 "perly.y"
-    { yyval.opval = newUNOP(OP_COMPLEMENT, 0, scalar(yyvsp[0].opval));;}
+    { (yyval.opval) = newUNOP(OP_COMPLEMENT, 0, scalar((yyvsp[0].opval)));;}
     break;
 
   case 122:
 #line 532 "perly.y"
-    { yyval.opval = newUNOP(OP_POSTINC, 0,
-					mod(scalar(yyvsp[-1].opval), OP_POSTINC)); ;}
+    { (yyval.opval) = newUNOP(OP_POSTINC, 0,
+					mod(scalar((yyvsp[-1].opval)), OP_POSTINC)); ;}
     break;
 
   case 123:
 #line 535 "perly.y"
-    { yyval.opval = newUNOP(OP_POSTDEC, 0,
-					mod(scalar(yyvsp[-1].opval), OP_POSTDEC)); ;}
+    { (yyval.opval) = newUNOP(OP_POSTDEC, 0,
+					mod(scalar((yyvsp[-1].opval)), OP_POSTDEC)); ;}
     break;
 
   case 124:
 #line 538 "perly.y"
-    { yyval.opval = newUNOP(OP_PREINC, 0,
-					mod(scalar(yyvsp[0].opval), OP_PREINC)); ;}
+    { (yyval.opval) = newUNOP(OP_PREINC, 0,
+					mod(scalar((yyvsp[0].opval)), OP_PREINC)); ;}
     break;
 
   case 125:
 #line 541 "perly.y"
-    { yyval.opval = newUNOP(OP_PREDEC, 0,
-					mod(scalar(yyvsp[0].opval), OP_PREDEC)); ;}
+    { (yyval.opval) = newUNOP(OP_PREDEC, 0,
+					mod(scalar((yyvsp[0].opval)), OP_PREDEC)); ;}
     break;
 
   case 126:
 #line 548 "perly.y"
-    { yyval.opval = newANONLIST(yyvsp[-1].opval); ;}
+    { (yyval.opval) = newANONLIST((yyvsp[-1].opval)); ;}
     break;
 
   case 127:
 #line 550 "perly.y"
-    { yyval.opval = newANONLIST(Nullop); ;}
+    { (yyval.opval) = newANONLIST(Nullop); ;}
     break;
 
   case 128:
 #line 552 "perly.y"
-    { yyval.opval = newANONHASH(yyvsp[-2].opval); ;}
+    { (yyval.opval) = newANONHASH((yyvsp[-2].opval)); ;}
     break;
 
   case 129:
 #line 554 "perly.y"
-    { yyval.opval = newANONHASH(Nullop); ;}
+    { (yyval.opval) = newANONHASH(Nullop); ;}
     break;
 
   case 130:
 #line 556 "perly.y"
-    { yyval.opval = newANONATTRSUB(yyvsp[-3].ival, yyvsp[-2].opval, yyvsp[-1].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = newANONATTRSUB((yyvsp[-3].ival), (yyvsp[-2].opval), (yyvsp[-1].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 131:
 #line 562 "perly.y"
-    { yyval.opval = dofile(yyvsp[0].opval); ;}
+    { (yyval.opval) = dofile((yyvsp[0].opval)); ;}
     break;
 
   case 132:
 #line 564 "perly.y"
-    { yyval.opval = newUNOP(OP_NULL, OPf_SPECIAL, scope(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newUNOP(OP_NULL, OPf_SPECIAL, scope((yyvsp[0].opval))); ;}
     break;
 
   case 133:
 #line 566 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB,
+    { (yyval.opval) = newUNOP(OP_ENTERSUB,
 			    OPf_SPECIAL|OPf_STACKED,
 			    prepend_elem(OP_LIST,
 				scalar(newCVREF(
 				    (OPpENTERSUB_AMPER<<8),
-				    scalar(yyvsp[-2].opval)
+				    scalar((yyvsp[-2].opval))
 				)),Nullop)); dep();;}
     break;
 
   case 134:
 #line 574 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB,
+    { (yyval.opval) = newUNOP(OP_ENTERSUB,
 			    OPf_SPECIAL|OPf_STACKED,
 			    append_elem(OP_LIST,
-				yyvsp[-1].opval,
+				(yyvsp[-1].opval),
 				scalar(newCVREF(
 				    (OPpENTERSUB_AMPER<<8),
-				    scalar(yyvsp[-3].opval)
+				    scalar((yyvsp[-3].opval))
 				)))); dep();;}
     break;
 
   case 135:
 #line 583 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED,
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED,
 			    prepend_elem(OP_LIST,
-				scalar(newCVREF(0,scalar(yyvsp[-2].opval))), Nullop)); dep();;}
+				scalar(newCVREF(0,scalar((yyvsp[-2].opval)))), Nullop)); dep();;}
     break;
 
   case 136:
 #line 587 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED,
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED,
 			    prepend_elem(OP_LIST,
-				yyvsp[-1].opval,
-				scalar(newCVREF(0,scalar(yyvsp[-3].opval))))); dep();;}
+				(yyvsp[-1].opval),
+				scalar(newCVREF(0,scalar((yyvsp[-3].opval)))))); dep();;}
     break;
 
   case 141:
 #line 599 "perly.y"
-    { yyval.opval = newCONDOP(0, yyvsp[-4].opval, yyvsp[-2].opval, yyvsp[0].opval); ;}
+    { (yyval.opval) = newCONDOP(0, (yyvsp[-4].opval), (yyvsp[-2].opval), (yyvsp[0].opval)); ;}
     break;
 
   case 142:
 #line 601 "perly.y"
-    { yyval.opval = newUNOP(OP_REFGEN, 0, mod(yyvsp[0].opval,OP_REFGEN)); ;}
+    { (yyval.opval) = newUNOP(OP_REFGEN, 0, mod((yyvsp[0].opval),OP_REFGEN)); ;}
     break;
 
   case 143:
 #line 603 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 144:
 #line 605 "perly.y"
-    { yyval.opval = localize(yyvsp[0].opval,yyvsp[-1].ival); ;}
+    { (yyval.opval) = localize((yyvsp[0].opval),(yyvsp[-1].ival)); ;}
     break;
 
   case 145:
 #line 607 "perly.y"
-    { yyval.opval = sawparens(yyvsp[-1].opval); ;}
+    { (yyval.opval) = sawparens((yyvsp[-1].opval)); ;}
     break;
 
   case 146:
 #line 609 "perly.y"
-    { yyval.opval = sawparens(newNULLLIST()); ;}
+    { (yyval.opval) = sawparens(newNULLLIST()); ;}
     break;
 
   case 147:
 #line 611 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 148:
 #line 613 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 149:
 #line 615 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 150:
 #line 617 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 151:
 #line 619 "perly.y"
-    { yyval.opval = newUNOP(OP_AV2ARYLEN, 0, ref(yyvsp[0].opval, OP_AV2ARYLEN));;}
+    { (yyval.opval) = newUNOP(OP_AV2ARYLEN, 0, ref((yyvsp[0].opval), OP_AV2ARYLEN));;}
     break;
 
   case 152:
 #line 621 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 153:
 #line 623 "perly.y"
-    { yyval.opval = newSLICEOP(0, yyvsp[-1].opval, yyvsp[-4].opval); ;}
+    { (yyval.opval) = newSLICEOP(0, (yyvsp[-1].opval), (yyvsp[-4].opval)); ;}
     break;
 
   case 154:
 #line 625 "perly.y"
-    { yyval.opval = newSLICEOP(0, yyvsp[-1].opval, Nullop); ;}
+    { (yyval.opval) = newSLICEOP(0, (yyvsp[-1].opval), Nullop); ;}
     break;
 
   case 155:
 #line 627 "perly.y"
-    { yyval.opval = prepend_elem(OP_ASLICE,
+    { (yyval.opval) = prepend_elem(OP_ASLICE,
 				newOP(OP_PUSHMARK, 0),
 				    newLISTOP(OP_ASLICE, 0,
-					list(yyvsp[-1].opval),
-					ref(yyvsp[-3].opval, OP_ASLICE))); ;}
+					list((yyvsp[-1].opval)),
+					ref((yyvsp[-3].opval), OP_ASLICE))); ;}
     break;
 
   case 156:
 #line 633 "perly.y"
-    { yyval.opval = prepend_elem(OP_HSLICE,
+    { (yyval.opval) = prepend_elem(OP_HSLICE,
 				newOP(OP_PUSHMARK, 0),
 				    newLISTOP(OP_HSLICE, 0,
-					list(yyvsp[-2].opval),
-					ref(oopsHV(yyvsp[-4].opval), OP_HSLICE)));
+					list((yyvsp[-2].opval)),
+					ref(oopsHV((yyvsp[-4].opval)), OP_HSLICE)));
 			    PL_expect = XOPERATOR; ;}
     break;
 
   case 157:
 #line 640 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 158:
 #line 642 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, 0, scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, 0, scalar((yyvsp[0].opval))); ;}
     break;
 
   case 159:
 #line 644 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar(yyvsp[-2].opval)); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar((yyvsp[-2].opval))); ;}
     break;
 
   case 160:
 #line 646 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED,
-			    append_elem(OP_LIST, yyvsp[-1].opval, scalar(yyvsp[-3].opval))); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED,
+			    append_elem(OP_LIST, (yyvsp[-1].opval), scalar((yyvsp[-3].opval)))); ;}
     break;
 
   case 161:
 #line 649 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED,
-			    append_elem(OP_LIST, yyvsp[0].opval, scalar(yyvsp[-1].opval))); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED,
+			    append_elem(OP_LIST, (yyvsp[0].opval), scalar((yyvsp[-1].opval)))); ;}
     break;
 
   case 162:
 #line 652 "perly.y"
-    { yyval.opval = newOP(yyvsp[0].ival, OPf_SPECIAL);
+    { (yyval.opval) = newOP((yyvsp[0].ival), OPf_SPECIAL);
 			    PL_hints |= HINT_BLOCK_SCOPE; ;}
     break;
 
   case 163:
 #line 655 "perly.y"
-    { yyval.opval = newLOOPEX(yyvsp[-1].ival,yyvsp[0].opval); ;}
+    { (yyval.opval) = newLOOPEX((yyvsp[-1].ival),(yyvsp[0].opval)); ;}
     break;
 
   case 164:
 #line 657 "perly.y"
-    { yyval.opval = newUNOP(OP_NOT, 0, scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newUNOP(OP_NOT, 0, scalar((yyvsp[0].opval))); ;}
     break;
 
   case 165:
 #line 659 "perly.y"
-    { yyval.opval = newOP(yyvsp[0].ival, 0); ;}
+    { (yyval.opval) = newOP((yyvsp[0].ival), 0); ;}
     break;
 
   case 166:
 #line 661 "perly.y"
-    { yyval.opval = newUNOP(yyvsp[-1].ival, 0, yyvsp[0].opval); ;}
+    { (yyval.opval) = newUNOP((yyvsp[-1].ival), 0, (yyvsp[0].opval)); ;}
     break;
 
   case 167:
 #line 663 "perly.y"
-    { yyval.opval = newUNOP(yyvsp[-1].ival, 0, yyvsp[0].opval); ;}
+    { (yyval.opval) = newUNOP((yyvsp[-1].ival), 0, (yyvsp[0].opval)); ;}
     break;
 
   case 168:
 #line 665 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED,
-			    append_elem(OP_LIST, yyvsp[0].opval, scalar(yyvsp[-1].opval))); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED,
+			    append_elem(OP_LIST, (yyvsp[0].opval), scalar((yyvsp[-1].opval)))); ;}
     break;
 
   case 169:
 #line 668 "perly.y"
-    { yyval.opval = newOP(yyvsp[0].ival, 0); ;}
+    { (yyval.opval) = newOP((yyvsp[0].ival), 0); ;}
     break;
 
   case 170:
 #line 670 "perly.y"
-    { yyval.opval = newOP(yyvsp[-2].ival, 0); ;}
+    { (yyval.opval) = newOP((yyvsp[-2].ival), 0); ;}
     break;
 
   case 171:
 #line 672 "perly.y"
-    { yyval.opval = newUNOP(OP_ENTERSUB, OPf_STACKED,
-				scalar(yyvsp[0].opval)); ;}
+    { (yyval.opval) = newUNOP(OP_ENTERSUB, OPf_STACKED,
+				scalar((yyvsp[0].opval))); ;}
     break;
 
   case 172:
 #line 675 "perly.y"
-    { yyval.opval = newOP(yyvsp[-2].ival, OPf_SPECIAL); ;}
+    { (yyval.opval) = (yyvsp[-2].ival) == OP_NOT ? newUNOP((yyvsp[-2].ival), 0, newSVOP(OP_CONST, 0, newSViv(0)))
+					    : newOP((yyvsp[-2].ival), OPf_SPECIAL); ;}
     break;
 
   case 173:
-#line 677 "perly.y"
-    { yyval.opval = newUNOP(yyvsp[-3].ival, 0, yyvsp[-1].opval); ;}
+#line 678 "perly.y"
+    { (yyval.opval) = newUNOP((yyvsp[-3].ival), 0, (yyvsp[-1].opval)); ;}
     break;
 
   case 174:
-#line 679 "perly.y"
-    { yyval.opval = pmruntime(yyvsp[-3].opval, yyvsp[-1].opval, 1); ;}
+#line 680 "perly.y"
+    { (yyval.opval) = pmruntime((yyvsp[-3].opval), (yyvsp[-1].opval), 1); ;}
     break;
 
   case 177:
-#line 686 "perly.y"
-    { yyval.opval = my_attrs(yyvsp[-1].opval,yyvsp[0].opval); ;}
+#line 687 "perly.y"
+    { (yyval.opval) = my_attrs((yyvsp[-1].opval),(yyvsp[0].opval)); ;}
     break;
 
   case 178:
-#line 688 "perly.y"
-    { yyval.opval = localize(yyvsp[0].opval,yyvsp[-1].ival); ;}
+#line 689 "perly.y"
+    { (yyval.opval) = localize((yyvsp[0].opval),(yyvsp[-1].ival)); ;}
     break;
 
   case 179:
-#line 693 "perly.y"
-    { yyval.opval = sawparens(yyvsp[-1].opval); ;}
+#line 694 "perly.y"
+    { (yyval.opval) = sawparens((yyvsp[-1].opval)); ;}
     break;
 
   case 180:
-#line 695 "perly.y"
-    { yyval.opval = sawparens(newNULLLIST()); ;}
+#line 696 "perly.y"
+    { (yyval.opval) = sawparens(newNULLLIST()); ;}
     break;
 
   case 181:
-#line 697 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+#line 698 "perly.y"
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 182:
-#line 699 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+#line 700 "perly.y"
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 183:
-#line 701 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+#line 702 "perly.y"
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 184:
-#line 706 "perly.y"
-    { yyval.opval = Nullop; ;}
+#line 707 "perly.y"
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 185:
-#line 708 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+#line 709 "perly.y"
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 186:
-#line 712 "perly.y"
-    { yyval.opval = Nullop; ;}
+#line 713 "perly.y"
+    { (yyval.opval) = Nullop; ;}
     break;
 
   case 187:
-#line 714 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+#line 715 "perly.y"
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
   case 188:
-#line 716 "perly.y"
-    { yyval.opval = yyvsp[-1].opval; ;}
+#line 717 "perly.y"
+    { (yyval.opval) = (yyvsp[-1].opval); ;}
     break;
 
   case 189:
-#line 722 "perly.y"
-    { PL_in_my = 0; yyval.opval = my(yyvsp[0].opval); ;}
+#line 723 "perly.y"
+    { PL_in_my = 0; (yyval.opval) = my((yyvsp[0].opval)); ;}
     break;
 
   case 190:
-#line 726 "perly.y"
-    { yyval.opval = newCVREF(yyvsp[-1].ival,yyvsp[0].opval); ;}
+#line 727 "perly.y"
+    { (yyval.opval) = newCVREF((yyvsp[-1].ival),(yyvsp[0].opval)); ;}
     break;
 
   case 191:
-#line 730 "perly.y"
-    { yyval.opval = newSVREF(yyvsp[0].opval); ;}
+#line 731 "perly.y"
+    { (yyval.opval) = newSVREF((yyvsp[0].opval)); ;}
     break;
 
   case 192:
-#line 734 "perly.y"
-    { yyval.opval = newAVREF(yyvsp[0].opval); ;}
+#line 735 "perly.y"
+    { (yyval.opval) = newAVREF((yyvsp[0].opval)); ;}
     break;
 
   case 193:
-#line 738 "perly.y"
-    { yyval.opval = newHVREF(yyvsp[0].opval); ;}
+#line 739 "perly.y"
+    { (yyval.opval) = newHVREF((yyvsp[0].opval)); ;}
     break;
 
   case 194:
-#line 742 "perly.y"
-    { yyval.opval = newAVREF(yyvsp[0].opval); ;}
+#line 743 "perly.y"
+    { (yyval.opval) = newAVREF((yyvsp[0].opval)); ;}
     break;
 
   case 195:
-#line 746 "perly.y"
-    { yyval.opval = newGVREF(0,yyvsp[0].opval); ;}
+#line 747 "perly.y"
+    { (yyval.opval) = newGVREF(0,(yyvsp[0].opval)); ;}
     break;
 
   case 196:
-#line 751 "perly.y"
-    { yyval.opval = scalar(yyvsp[0].opval); ;}
+#line 752 "perly.y"
+    { (yyval.opval) = scalar((yyvsp[0].opval)); ;}
     break;
 
   case 197:
-#line 753 "perly.y"
-    { yyval.opval = scalar(yyvsp[0].opval);  ;}
+#line 754 "perly.y"
+    { (yyval.opval) = scalar((yyvsp[0].opval));  ;}
     break;
 
   case 198:
-#line 755 "perly.y"
-    { yyval.opval = scope(yyvsp[0].opval); ;}
+#line 756 "perly.y"
+    { (yyval.opval) = scope((yyvsp[0].opval)); ;}
     break;
 
   case 199:
-#line 758 "perly.y"
-    { yyval.opval = yyvsp[0].opval; ;}
+#line 759 "perly.y"
+    { (yyval.opval) = (yyvsp[0].opval); ;}
     break;
 
 
diff --git a/perly.h b/perly.h
index e92ca95..32c0f32 100644
--- a/perly.h
+++ b/perly.h
@@ -1,8 +1,8 @@
 #ifdef PERL_CORE
-/* A Bison parser, made by GNU Bison 1.875.  */
+/* A Bison parser, made by GNU Bison 2.0.  */
 
 /* Skeleton parser for Yacc-like parsing with Bison,
-   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002 Free Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -171,8 +171,8 @@ typedef union YYSTYPE {
     OP *opval;
     GV *gvval;
 } YYSTYPE;
-/* Line 1248 of yacc.c.  */
-#line 173 "perly.h"
+/* Line 1318 of yacc.c.  */
+#line 174 "perly.h"
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
 # define YYSTYPE_IS_TRIVIAL 1
diff --git a/perly.tab b/perly.tab
index 1b32b62..5e98358 100644
--- a/perly.tab
+++ b/perly.tab
@@ -59,7 +59,7 @@ static const unsigned char yytranslate[] =
 #if YYDEBUG
 /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
    YYRHS.  */
-static const unsigned short yyprhs[] =
+static const unsigned short int yyprhs[] =
 {
        0,     0,     3,     6,    11,    12,    13,    18,    19,    20,
       21,    24,    28,    31,    33,    36,    40,    42,    44,    48,
@@ -84,7 +84,7 @@ static const unsigned short yyprhs[] =
 };
 
 /* YYRHS -- A `-1'-separated list of the rules' RHS. */
-static const short yyrhs[] =
+static const short int yyrhs[] =
 {
       86,     0,    -1,    89,    93,    -1,     3,    88,    93,    76,
       -1,    -1,    -1,     3,    91,    93,    76,    -1,    -1,    -1,
@@ -159,7 +159,7 @@ static const short yyrhs[] =
 };
 
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
-static const unsigned short yyrline[] =
+static const unsigned short int yyrline[] =
 {
        0,    95,    95,   101,   108,   112,   118,   125,   129,   133,
      134,   136,   145,   147,   148,   157,   163,   165,   167,   169,
@@ -178,9 +178,9 @@ static const unsigned short yyrline[] =
      597,   598,   600,   602,   604,   606,   608,   610,   612,   614,
      616,   618,   620,   622,   624,   626,   632,   639,   641,   643,
      645,   648,   651,   654,   656,   658,   660,   662,   664,   667,
-     669,   671,   674,   676,   678,   680,   681,   685,   687,   692,
-     694,   696,   698,   700,   705,   707,   712,   713,   715,   721,
-     725,   729,   733,   737,   741,   745,   750,   752,   754,   757
+     669,   671,   674,   677,   679,   681,   682,   686,   688,   693,
+     695,   697,   699,   701,   706,   708,   713,   714,   716,   722,
+     726,   730,   734,   738,   742,   746,   751,   753,   755,   758
 };
 #endif
 
@@ -189,26 +189,26 @@ static const unsigned short yyrline[] =
    First, the terminals, then, starting at YYNTOKENS, nonterminals. */
 static const char *const yytname[] =
 {
-  "$end", "error", "$undefined", "'{'", "WORD", "METHOD", "FUNCMETH", 
-  "THING", "PMFUNC", "PRIVATEREF", "FUNC0SUB", "UNIOPSUB", "LSTOPSUB", 
-  "LABEL", "FORMAT", "SUB", "ANONSUB", "PACKAGE", "USE", "WHILE", "UNTIL", 
-  "IF", "UNLESS", "ELSE", "ELSIF", "CONTINUE", "FOR", "LOOPEX", "DOTDOT", 
-  "FUNC0", "FUNC1", "FUNC", "UNIOP", "LSTOP", "RELOP", "EQOP", "MULOP", 
-  "ADDOP", "DOLSHARP", "DO", "HASHBRACK", "NOAMP", "LOCAL", "MY", "MYSUB", 
-  "COLONATTR", "'&'", "PREC_LOW", "DOROP", "OROP", "ANDOP", "NOTOP", 
-  "','", "ASSIGNOP", "'?'", "':'", "DORDOR", "OROR", "ANDAND", "BITOROP", 
-  "BITANDOP", "SHIFTOP", "MATCHOP", "'!'", "'~'", "REFGEN", "UMINUS", 
-  "POWOP", "POSTDEC", "POSTINC", "PREDEC", "PREINC", "ARROW", "')'", 
-  "'('", "'['", "'}'", "';'", "']'", "'-'", "'+'", "'$'", "'@'", "'%'", 
-  "'*'", "$accept", "prog", "block", "remember", "progstart", "mblock", 
-  "mremember", "savescope", "lineseq", "line", "sideff", "else", "cond", 
-  "cont", "loop", "nexpr", "texpr", "iexpr", "mexpr", "mnexpr", "mtexpr", 
-  "miexpr", "label", "decl", "format", "formname", "mysubrout", "subrout", 
-  "startsub", "startanonsub", "startformsub", "subname", "proto", 
-  "subattrlist", "myattrlist", "subbody", "package", "use", "@1", "expr", 
-  "argexpr", "listop", "@2", "method", "subscripted", "termbinop", 
-  "termunop", "anonymous", "termdo", "term", "myattrterm", "myterm", 
-  "listexpr", "listexprcom", "my_scalar", "amper", "scalar", "ary", "hsh", 
+  "$end", "error", "$undefined", "'{'", "WORD", "METHOD", "FUNCMETH",
+  "THING", "PMFUNC", "PRIVATEREF", "FUNC0SUB", "UNIOPSUB", "LSTOPSUB",
+  "LABEL", "FORMAT", "SUB", "ANONSUB", "PACKAGE", "USE", "WHILE", "UNTIL",
+  "IF", "UNLESS", "ELSE", "ELSIF", "CONTINUE", "FOR", "LOOPEX", "DOTDOT",
+  "FUNC0", "FUNC1", "FUNC", "UNIOP", "LSTOP", "RELOP", "EQOP", "MULOP",
+  "ADDOP", "DOLSHARP", "DO", "HASHBRACK", "NOAMP", "LOCAL", "MY", "MYSUB",
+  "COLONATTR", "'&'", "PREC_LOW", "DOROP", "OROP", "ANDOP", "NOTOP", "','",
+  "ASSIGNOP", "'?'", "':'", "DORDOR", "OROR", "ANDAND", "BITOROP",
+  "BITANDOP", "SHIFTOP", "MATCHOP", "'!'", "'~'", "REFGEN", "UMINUS",
+  "POWOP", "POSTDEC", "POSTINC", "PREDEC", "PREINC", "ARROW", "')'", "'('",
+  "'['", "'}'", "';'", "']'", "'-'", "'+'", "'$'", "'@'", "'%'", "'*'",
+  "$accept", "prog", "block", "remember", "progstart", "mblock",
+  "mremember", "savescope", "lineseq", "line", "sideff", "else", "cond",
+  "cont", "loop", "nexpr", "texpr", "iexpr", "mexpr", "mnexpr", "mtexpr",
+  "miexpr", "label", "decl", "format", "formname", "mysubrout", "subrout",
+  "startsub", "startanonsub", "startformsub", "subname", "proto",
+  "subattrlist", "myattrlist", "subbody", "package", "use", "@1", "expr",
+  "argexpr", "listop", "@2", "method", "subscripted", "termbinop",
+  "termunop", "anonymous", "termdo", "term", "myattrterm", "myterm",
+  "listexpr", "listexprcom", "my_scalar", "amper", "scalar", "ary", "hsh",
   "arylen", "star", "indirob", 0
 };
 #endif
@@ -216,7 +216,7 @@ static const char *const yytname[] =
 # ifdef YYPRINT
 /* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
    token YYLEX-NUM.  */
-static const unsigned short yytoknum[] =
+static const unsigned short int yytoknum[] =
 {
        0,   256,   257,   123,   258,   259,   260,   261,   262,   263,
      264,   265,   266,   267,   268,   269,   270,   271,   272,   273,
@@ -328,7 +328,7 @@ static const unsigned char yydefact[] =
 };
 
 /* YYDEFGOTO[NTERM-NUM]. */
-static const short yydefgoto[] =
+static const short int yydefgoto[] =
 {
       -1,     1,   104,   101,     2,   361,   372,    10,     4,    23,
      300,   377,    79,   162,    24,   301,   290,   293,   295,   303,
@@ -342,7 +342,7 @@ static const short yydefgoto[] =
 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
    STATE-NUM.  */
 #define YYPACT_NINF -343
-static const short yypact[] =
+static const short int yypact[] =
 {
     -343,     9,  -343,  -343,   147,  -343,  -343,     8,  -343,  -343,
        7,  -343,  -343,  -343,  -343,  -343,  -343,    19,    52,    -8,
@@ -387,7 +387,7 @@ static const short yypact[] =
 };
 
 /* YYPGOTO[NTERM-NUM].  */
-static const short yypgoto[] =
+static const short int yypgoto[] =
 {
     -343,  -343,   -23,   -98,  -343,    22,  -343,  -343,  -100,  -343,
      305,  -342,  -343,  -112,  -343,  -343,  -343,   194,  -210,   -36,
@@ -403,7 +403,7 @@ static const short yypgoto[] =
    number is the opposite.  If zero, do what YYDEFACT says.
    If YYTABLE_NINF, syntax error.  */
 #define YYTABLE_NINF -176
-static const short yytable[] =
+static const short int yytable[] =
 {
       80,   204,    77,   126,    96,   302,   286,   205,   203,     3,
      100,   145,    19,   195,   210,   211,   212,   213,   214,   215,
@@ -602,7 +602,7 @@ static const short yytable[] =
        0,     0,     0,   190,   191,   192,     0,     0,   193
 };
 
-static const short yycheck[] =
+static const short int yycheck[] =
 {
       25,   101,    25,    54,    27,   215,   206,   106,   100,     0,
       32,    62,     4,     3,   112,   113,   114,   115,   116,   117,
diff --git a/perly.y b/perly.y
index 73e36ab..2d989b3 100644
--- a/perly.y
+++ b/perly.y
@@ -672,7 +672,8 @@ term	:	termbinop
 			{ $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
 				scalar($1)); }
 	|	FUNC1 '(' ')'                        /* not () */
-			{ $$ = newOP($1, OPf_SPECIAL); }
+			{ $$ = $1 == OP_NOT ? newUNOP($1, 0, newSVOP(OP_CONST, 0, newSViv(0)))
+					    : newOP($1, OPf_SPECIAL); }
 	|	FUNC1 '(' expr ')'                   /* not($foo) */
 			{ $$ = newUNOP($1, 0, $3); }
 	|	PMFUNC '(' argexpr ')'           /* m//, s///, tr/// */
diff --git a/t/op/not.t b/t/op/not.t
new file mode 100644
index 0000000..5ff65be
--- /dev/null
+++ b/t/op/not.t
@@ -0,0 +1,13 @@
+#!./perl -w
+
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+    require './test.pl';
+}
+
+plan tests => 3;
+
+pass() if not();
+is(not(), 1);
+is(not(), not(0));