D:\pscrpt>perl try.pl
SV = IV(0x89c7cc) at 0x3f5d3c
  REFCNT = 1
  FLAGS = (IOK,pIOK)
  IV = 17
##############

SV = NV(0x8afcb4) at 0x3f5d24
  REFCNT = 1
  FLAGS = (NOK,pNOK)
  NV = 1.23456789
##############

SV = NV(0x8afcbc) at 0x8a3204
  REFCNT = 1
  FLAGS = (NOK,pNOK)
  NV = 1
##############

SV = IV(0x89c7c8) at 0x8ba4d8
  REFCNT = 1
  FLAGS = (IOK,pIOK,IsUV)
  UV = 2147483664
##############

SV = NV(0x8afcc4) at 0x8a2fdc
  REFCNT = 1
  FLAGS = (NOK,pNOK)
  NV = 70368744177683
##############

SV = PVNV(0x3f8714) at 0x3f5d3c
  REFCNT = 1
  FLAGS = (NOK,pNOK)
  IV = 17
  NV = 17.0123
  PV = 0
##############