I belive '+' has some importance.

For me, return values of +0, -0, and 0 are indistinguishable from each other - which means that the '+' has no significance at all: 
C:\_32>perl -MDevel::Peek -e "Dump(+0)"
SV = IV(0x1fe2d28) at 0x343cbc
  REFCNT = 1
  FLAGS = (PADBUSY,PADTMP,IOK,READONLY,pIOK)
  IV = 0

C:\_32>perl -MDevel::Peek -e "Dump(-0)"
SV = IV(0x432d2c) at 0xd73cec
  REFCNT = 1
  FLAGS = (PADBUSY,PADTMP,IOK,READONLY,pIOK)
  IV = 0

C:\_32>perl -MDevel::Peek -e "Dump(0)"
SV = IV(0x2492d28) at 0x23cbc
  REFCNT = 1
  FLAGS = (PADBUSY,PADTMP,IOK,READONLY,pIOK)
  IV = 0

[download]
(Replace the double quotes with single quotes if you're on a *nix-type operating system.)

Cheers,
Rob

In reply to Re^3: return +0 by syphilis
in thread return +0 by arunvelusamy

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