From mjtg@cus.cam.ac.uk

vec() on UTF8 strings does some odd things, for example

  DB<25> $x = v128.257

  DB<26> vec($x,0,1) = 1

  DB<27> Dump $x
SV = PV(0x2550d0) at 0x223684
  REFCNT = 1
  FLAGS = (POK,pPOK,UTF8)
  PV = 0x244ac8 "\303\200\304\201"\0
  CUR = 4
  LEN = 5

  DB<28> x sprintf "%vd", $x
0 192.257
  DB<29>

But what *should* it do? My best suggestion is that vec() should be
restricted to byte strings only, i.e. should force its argument to bytes
and give an error if any character is > 255.

Mike Guy

(actually near bleeding edge version, despite appearances)
% perl -V
Summary of my perl5 (revision 5.0 version 6 subversion 0) configuration​:
  Platform​:
  osname=solaris, osvers=2.6, archname=sun4-solaris
  uname=''
  config_args='-dOes -f confug.sh'
  hint=previous, useposix=true, d_sigaction=define
  usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
  useperlio=undef d_sfio=undef uselargefiles=define
  use64bitint=undef use64bitall=undef uselongdouble=undef usesocks=undef
  Compiler​:
  cc='gcc', optimize='-O', gccversion=2.7.2.3
  cppflags='-I/usr/local/include -I/opt/local/include -DREG_INFTY=22786'
  ccflags ='-I/usr/local/include -I/opt/local/include -DREG_INFTY=22786'
  stdchar='unsigned char', d_stdstdio=define, usevfork=false
  intsize=4, longsize=4, ptrsize=4, doublesize=8
  d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
  ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=4
  alignbytes=8, usemymalloc=y, prototype=define
  Linker and Libraries​:
  ld='gcc', ldflags =' -L/usr/local/lib -L/opt/local/lib'
  libpth=/usr/local/lib /opt/local/lib /lib /usr/lib /usr/ccs/lib
  libs=-lsocket -lnsl -ldl -lm -lc -lcrypt
  libc=/lib/libc.so, so=so, useshrplib=false, libperl=libperl.a
  Dynamic Linking​:
  dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
  cccdlflags='-fpic', lddlflags='-G -L/usr/local/lib -L/opt/local/lib'

Characteristics of this binary (from libperl)​:
  Compile-time options​: USE_LARGE_FILES
  Built under solaris
  Compiled at May 13 2000 19​:26​:32
  @​INC​:
  /home/mjtg/perl5.6.0x/lib
  /home/mjtg/perl5.6.0x/lib
  /home/mjtg/perl5.6.0x/lib
  /home/mjtg/perl5.6.0x/lib
  .

From [Unknown Contact. See original ticket]

M.J.T. Guy writes​:

vec() on UTF8 strings does some odd things, for example

But what *should* it do? My best suggestion is that vec() should be
restricted to byte strings only, i.e. should force its argument to bytes
and give an error if any character is > 255.

I would not be so severe. Just any character in the specified range...

Ilya

From The RT System itself

Well, any character works now...