Carp was mostly unusable with Safe because it may require

[p5sagit/p5-mst-13.2.git] / pp.c

diff --git a/pp.c b/pp.c
index 1a35902..2d73123 100644 (file)
--- a/pp.c
+++ b/pp.c
@@ -2800,7 +2800,9 @@ PP(pp_int)
         else preferring IV has introduced a subtle behaviour change bug. OTOH
         relying on floating point to be accurate is a bug.  */
 
-      if (SvIOK(TOPs)) {
+      if (!SvOK(TOPs))
+        SETu(0);
+      else if (SvIOK(TOPs)) {
        if (SvIsUV(TOPs)) {
            UV uv = TOPu;
            SETu(uv);
@@ -2834,7 +2836,9 @@ PP(pp_abs)
       /* This will cache the NV value if string isn't actually integer  */
       IV iv = TOPi;
 
-      if (SvIOK(TOPs)) {
+      if (!SvOK(TOPs))
+        SETu(0);
+      else if (SvIOK(TOPs)) {
        /* IVX is precise  */
        if (SvIsUV(TOPs)) {
          SETu(TOPu);   /* force it to be numeric only */
@@ -3795,7 +3799,10 @@ PP(pp_delete)
            SP = ORIGMARK;
        else if (gimme == G_SCALAR) {
            MARK = ORIGMARK;
-           *++MARK = *SP;
+           if (SP > MARK)
+               *++MARK = *SP;
+           else
+               *++MARK = &PL_sv_undef;
            SP = MARK;
        }
     }
@@ -4327,12 +4334,17 @@ PP(pp_reverse)
        register I32 tmp;
        dTARGET;
        STRLEN len;
+       I32 padoff_du;
 
        SvUTF8_off(TARG);                               /* decontaminate */
        if (SP - MARK > 1)
            do_join(TARG, &PL_sv_no, MARK, SP);
        else
-           sv_setsv(TARG, (SP > MARK) ? *SP : DEFSV);
+           sv_setsv(TARG, (SP > MARK)
+                   ? *SP
+                   : (padoff_du = find_rundefsvoffset(),
+                       (padoff_du == NOT_IN_PAD || PAD_COMPNAME_FLAGS(padoff_du) & SVpad_OUR)
+                       ? DEFSV : PAD_SVl(padoff_du)));
        up = SvPV_force(TARG, len);
        if (len > 1) {
            if (DO_UTF8(TARG)) {        /* first reverse each character */
@@ -4636,7 +4648,7 @@ PP(pp_split)
            if (TOPs && !make_mortal)
                sv_2mortal(TOPs);
            iters--;
-           SP--;
+           *SP-- = &PL_sv_undef;
        }
     }