in reply to Re^4: return +0
in thread return +0

Perhaps you could be less vague. There is no such distinction in my tests: 

> perl -MDevel::Peek -e"Dump(+.0)"
SV = NV(0xa4a5fc) at 0x3d53c4
  REFCNT = 1
  FLAGS = (PADBUSY,PADTMP,NOK,READONLY,pNOK)
  NV = 0

> perl -MDevel::Peek -e"Dump(-.0)"
SV = NV(0xa4a60c) at 0x3d53f4
  REFCNT = 1
  FLAGS = (PADBUSY,PADTMP,NOK,READONLY,pNOK)
  NV = 0

> perl -MDevel::Peek -e"Dump(.0)"
SV = NV(0xa4a5fc) at 0x3d53c4
  REFCNT = 1
  FLAGS = (PADBUSY,PADTMP,NOK,READONLY,pNOK)
  NV = 0

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- tye        

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Re^6: return +0 (-.0?)
by Sidhekin (Priest) on Nov 28, 2007 at 22:23 UTC

    It depends on the math libraries? They're different here, at least: 

    sidhekin@blackbox[23:22:41]~$ perl -MDevel::Peek -le 'Dump(.0)'
SV = NV(0x816e490) at 0x814dce4
  REFCNT = 1
  FLAGS = (PADBUSY,PADTMP,NOK,READONLY,pNOK)
  NV = 0
sidhekin@blackbox[23:22:51]~$ perl -MDevel::Peek -le 'Dump(-.0)'
SV = NV(0x816e4a0) at 0x814dd20
  REFCNT = 1
  FLAGS = (PADBUSY,PADTMP,NOK,READONLY,pNOK)
  NV = -0
sidhekin@blackbox[23:22:53]~$

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    print "Just another Perl ${\(trickster and hacker)},"
    The Sidhekin proves Sidhe did it!

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