make \(%foo) return refs to values (not copies of values)

	From: Stephen McCamant <smccam@uclink4.berkeley.edu>
	Date: Fri, 28 Aug 1998 20:46:10 -0700 (PDT)
	Message-ID: <13799.30680.47765.352558@fre-76-120.reshall.berkeley.edu>
	--
	From: Roderick Schertler <roderick@argon.org>
	Date: Sat, 29 Aug 1998 00:58:33 -0400
	Message-ID: <29894.904366713@eeyore.ibcinc.com>
	Subject: Re: \(%x) problems

p4raw-id: //depot/perl@1819

diff --git a/doop.c b/doop.c
index c6270e4..a3663f9 100644 (file)
--- a/doop.c
+++ b/doop.c
@@ -1067,10 +1067,9 @@ do_kv(ARGSproto)
        if (dokeys)
            XPUSHs(hv_iterkeysv(entry));        /* won't clobber stack_sp */
        if (dovalues) {
-           tmpstr = sv_newmortal();
            PUTBACK;
-           sv_setsv(tmpstr,realhv ?
-                    hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry));
+           tmpstr = realhv ?
+                    hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry);
            DEBUG_H(sv_setpvf(tmpstr, "%lu%%%d=%lu",
                            (unsigned long)HeHASH(entry),
                            HvMAX(keys)+1,

diff --git a/pod/perlref.pod b/pod/perlref.pod
index 66b1a7d..aa4ddfb 100644 (file)
--- a/pod/perlref.pod
+++ b/pod/perlref.pod
@@ -89,7 +89,9 @@ a list of references!
     @list = \($a, @b, %c);     # same thing!
 
 As a special case, C<\(@foo)> returns a list of references to the contents
-of C<@foo>, not a reference to C<@foo> itself.  Likewise for C<%foo>.
+of C<@foo>, not a reference to C<@foo> itself.  Likewise for C<%foo>,
+except that the key references are to copies (since the keys are just
+strings rather than full-fledged scalars).
 
 =item 3.