has RV gone in 5.12?

[xiaoyafeng]

I've got some research of perl API on perl 5.12, but find some difference between document and output:

# perldoc Devel::Peek

 A reference to an array
   This shows what a reference to an array looks like.

           use Devel::Peek;
           $a = [42];
           Dump $a;

   The output:

           SV = RV(0xf041c)
             REFCNT = 1
             FLAGS = (ROK)
             RV = 0xb2850
           SV = PVAV(0xbd448)
             REFCNT = 1
             FLAGS = ()
             IV = 0
             NV = 0
             ARRAY = 0xb2048
             ALLOC = 0xb2048
             FILL = 0
             MAX = 0
             ARYLEN = 0x0
             FLAGS = (REAL)
           Elt No. 0 0xb5658
           SV = IV(0xbe860)
             REFCNT = 1
             FLAGS = (IOK,pIOK)
             IV = 42


# output I run

C:\>perl test3.pl
SV = IV(0x19dd38) at 0x19dd3c
  REFCNT = 1
  FLAGS = (PADMY,ROK)
  RV = 0x14a90c
  SV = PVAV(0x14c204) at 0x14a90c
    REFCNT = 1
    FLAGS = ()
    ARRAY = 0x1a208c
    FILL = 0
    MAX = 0
    ARYLEN = 0x0
    FLAGS = (REAL)
    Elt No. 0
    SV = IV(0x14a9a8) at 0x14a9ac
      REFCNT = 1
      FLAGS = (IOK,pIOK)
      IV = 42

does it mean RV is replaced by IV from version 12 or something else I didn't notice? Please Enlighten me.

Thanks !

Below is perl info.

C:\>perl -V
Set up gcc environment - 3.4.5 (mingw-vista special r3)
Summary of my perl5 (revision 5 version 12 subversion 3) configuration
+:

  Platform:
    osname=MSWin32, osvers=5.2, archname=MSWin32-x86-multi-thread
    uname=''
    config_args='undef'
    hint=recommended, useposix=true, d_sigaction=undef
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=und
+ef
    use64bitint=undef, use64bitall=undef, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='C:/Perl/site/bin/gcc.exe', ccflags ='-DNDEBUG -DWIN32 -D_CONSO
+LE -DNO_ST
RICT -DHAVE_DES_FCRYPT -DUSE_SITECUSTOMIZE -DPERL_IMPLICIT_CONTEXT -DP
+ERL_IMPLIC
IT_SYS -DUSE_PERLIO -D_USE_32BIT_TIME_T -DPERL_MSVCRT_READFIX -DHASATT
+RIBUTE -fn
o-strict-aliasing -mms-bitfields',
    optimize='-O2',
    cppflags='-DWIN32'
    ccversion='', gccversion='3.4.5 (mingw-vista special r3)', gccosan
+dvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=8
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64
+', lseeksi
ze=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='C:\Perl\site\bin\g++.exe', ldflags ='-L"C:\Perl\lib\CORE"'
    libpth=\lib
    libs=-lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 
+-lshell32
-lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm -lversion 
+-lodbc32 -
lodbccp32 -lcomctl32 -lmsvcrt
    perllibs=-lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvap
+i32 -lshel
l32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm -lvers
+ion -lodbc
32 -lodbccp32 -lcomctl32 -lmsvcrt
    libc=msvcrt.lib, so=dll, useshrplib=true, libperl=perl512.lib
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags='-mdll -L"C:\Perl\lib\CORE"'


Characteristics of this binary (from libperl):
  Compile-time options: MULTIPLICITY PERL_DONT_CREATE_GVSV
                        PERL_IMPLICIT_CONTEXT PERL_IMPLICIT_SYS
                        PERL_MALLOC_WRAP PL_OP_SLAB_ALLOC USE_ITHREADS
                        USE_LARGE_FILES USE_PERLIO USE_PERL_ATOF
                        USE_SITECUSTOMIZE
  Locally applied patches:
        ActivePerl Build 1204 [294330]
        c6fbf28 [perl #71806] perldb does not setup %dbline with the s
+hebang opt
ion -d
        1fd8fa4 Add Wolfram Humann to AUTHORS
        f120055 make string-append on win32 100 times faster
        a2a8d15 Define _USE_32BIT_TIME_T for VC6 and VC7
        007cfe1 Don't pretend to support really old VC++ compilers
        6d8f7c9 Get rid of obsolete PerlCRT.dll support
        d956618 Make Term::ReadLine::findConsole fall back to STDIN if
+ /dev/tty
can't be opened
        321e50c Escape patch strings before embedding them in patchlev
+el.h
  Built under MSWin32
  Compiled at Feb  9 2011 14:38:22
  @INC:
    C:/Perl/site/lib
    C:/Perl/lib
    .

[Anonymous Monk]

Upgrade Devel::Peek and the docs will match :) See also http://search.cpan.org/dist/illguts/index.html

[ikegami]

The types of SV in 5.10.0 (from sv.h):

typedef enum {
    SVt_NULL,    /* 0 */
    SVt_BIND,    /* 1 */
    SVt_IV,        /* 2 */
    SVt_NV,        /* 3 */
    /* RV was here, before it was merged with IV.  */
    SVt_PV,        /* 4 */
    SVt_PVIV,    /* 5 */
    SVt_PVNV,    /* 6 */
    SVt_PVMG,    /* 7 */
    SVt_REGEXP,    /* 8 */
    /* PVBM was here, before BIND replaced it.  */
    SVt_PVGV,    /* 9 */
    SVt_PVLV,    /* 10 */
    SVt_PVAV,    /* 11 */
    SVt_PVHV,    /* 12 */
    SVt_PVCV,    /* 13 */
    SVt_PVFM,    /* 14 */
    SVt_PVIO,    /* 15 */
    SVt_LAST    /* keep last in enum. used to size arrays */
} svtype;

As you can see, SVt_RV was removed. It was identical to SVt_IV, and removing it allowed the addition of a new type.

illguts doesn't reflect this change. Filed a bug report