perl 5.003_06: mg.c

Restore the 5.003 gv_fullname() and gv_efullname() functions.
Provide new 3-arg forms gv_fullname3() and gv_efullname3().

Date: Sun, 29 Sep 1996 22:18:19 -0400 (EDT)
From: Chip Salzenberg <salzench@nielsenmedia.com>
Subject: 5.003_05: Fix numeric value of $!

This patch undoes a bit of over-zealous integerization in mg.c, related
to the numeric value of $!.

Date: Mon, 30 Sep 1996 01:13:28 -0400
From: Spider Boardman <spider@Orb.Nashua.NH.US>
Subject: Re: pre extending hash? - need speed

The patch below (which is relative to perl5.001l) implements
"keys %hash = 50_000;" (or other integer-evaluable sizes) for
pre-sizing hashes.  I've only moved the patch forward from
when I first did it.  I'm sure the code in hv_ksplit could be
improved.

Date: Thu, 03 Oct 1996 16:31:46 -0400 (EDT)
From: Charles Bailey <bailey@HMIVAX.HUMGEN.UPENN.EDU>
Subject: VMS patches to 5.003_05

Date: Fri, 4 Oct 1996 12:38:31 -0400 (EDT)
From: Chip Salzenberg <salzench@nielsenmedia.com>
Subject: 5.003_05: Fix numeric $! and $^E

This patch undoes a bit of over-zealous integerization in mg.c,
related to the numeric values of $! and $^E.  This patch *REPLACES*
the one I posted earlier, which was only effective for $!.

[Some of this is superceded by similar stuff in the VMS patches.]

diff --git a/mg.c b/mg.c
index bd3bd2a..934c776 100644 (file)
--- a/mg.c
+++ b/mg.c
@@ -352,7 +352,7 @@ MAGIC *mg;
 #          include <starlet.h>
            char msg[255];
            $DESCRIPTOR(msgdsc,msg);
-           sv_setiv(sv, (IV)vaxc$errno);
+           sv_setnv(sv,(double) vaxc$errno);
            if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1)
                sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length);
            else
@@ -360,14 +360,14 @@ MAGIC *mg;
        }
 #else
 #ifdef OS2
-       sv_setiv(sv, (IV)Perl_rc);
+       sv_setnv(sv, (double)Perl_rc);
        sv_setpv(sv, os2error(Perl_rc));
 #else
-       sv_setiv(sv, (IV)errno);
+       sv_setnv(sv, (double)errno);
        sv_setpv(sv, errno ? Strerror(errno) : "");
 #endif
 #endif
-       SvIOK_on(sv);   /* what a wonderful hack! */
+       SvNOK_on(sv);   /* what a wonderful hack! */
        break;
     case '\006':               /* ^F */
        sv_setiv(sv, (IV)maxsysfd);
@@ -506,12 +506,12 @@ MAGIC *mg;
        break;
     case '!':
 #ifdef VMS
-       sv_setiv(sv, (IV)((errno == EVMSERR) ? vaxc$errno : errno));
+       sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno));
        sv_setpv(sv, errno ? Strerror(errno) : "");
 #else
        {
        int saveerrno = errno;
-       sv_setiv(sv, (IV)errno);
+       sv_setnv(sv, (double)errno);
 #ifdef OS2
        if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc));
        else
@@ -520,7 +520,7 @@ MAGIC *mg;
        errno = saveerrno;
        }
 #endif
-       SvIOK_on(sv);   /* what a wonderful hack! */
+       SvNOK_on(sv);   /* what a wonderful hack! */
        break;
     case '<':
        sv_setiv(sv, (IV)uid);
@@ -551,7 +551,7 @@ MAGIC *mg;
        }
 #endif
        sv_setpv(sv,buf);
-       SvIOK_on(sv);   /* what a wonderful hack! */
+       SvNOK_on(sv);   /* what a wonderful hack! */
        break;
     case '*':
        break;
@@ -815,6 +815,18 @@ MAGIC* mg;
 }
 #endif /* OVERLOAD */
 
+int
+magic_setnkeys(sv,mg)
+SV* sv;
+MAGIC* mg;
+{
+    if (LvTARG(sv)) {
+       hv_ksplit((HV*)LvTARG(sv), SvIV(sv));
+       LvTARG(sv) = Nullsv;    /* Don't allow a ref to reassign this. */
+    }
+    return 0;
+}
+
 static int
 magic_methpack(sv,mg,meth)
 SV* sv;
@@ -1042,11 +1054,11 @@ MAGIC* mg;
 {
     if (SvFAKE(sv)) {                  /* FAKE globs can get coerced */
        SvFAKE_off(sv);
-       gv_efullname(sv,((GV*)sv), "*");
+       gv_efullname3(sv,((GV*)sv), "*");
        SvFAKE_on(sv);
     }
     else
-       gv_efullname(sv,((GV*)sv), "*");        /* a gv value, be nice */
+       gv_efullname3(sv,((GV*)sv), "*");       /* a gv value, be nice */
     return 0;
 }