bigint/bigrat export NaN and inf 
D:\>perl -MDevel::Peek -Mbigint -e"Dump(NaN())"
SV = PV(0x225ec4) at 0x18a5984
  REFCNT = 1
  FLAGS = (TEMP,ROK,OVERLOAD)
  RV = 0x224f58
  SV = PVHV(0x2299c4) at 0x224f58
    REFCNT = 1
    FLAGS = (OBJECT,SHAREKEYS)
    IV = 2
    NV = 0
    STASH = 0x185c2e4   "Math::BigInt"
    ARRAY = 0x1824734  (0:6, 1:2)
    hash quality = 125.0%
    KEYS = 2
    FILL = 2
    MAX = 7
    RITER = -1
    EITER = 0x0
    Elt "value" HASH = 0x1e720953
    SV = RV(0x183b380) at 0x19a5b88
      REFCNT = 1
      FLAGS = (ROK)
      RV = 0x197f954
      SV = PVAV(0x199f354) at 0x197f954
        REFCNT = 1
        FLAGS = ()
        IV = 0
        NV = 0
        ARRAY = 0x1830244
        FILL = 0
        MAX = 0
        ARYLEN = 0x0
        FLAGS = (REAL)
        Elt No. 0
        SV = IV(0x182d3e8) at 0x19a5b64
          REFCNT = 1
          FLAGS = (IOK,pIOK)
          IV = 0
    Elt "sign" HASH = 0xe7455c8f
    SV = PV(0x225ea0) at 0x19a5b58
      REFCNT = 1
      FLAGS = (POK,pPOK)
      PV = 0x182281c "NaN"\0
      CUR = 3
      LEN = 4
  PV = 0x224f58 ""
  CUR = 0
  LEN = 0

D:\>perl -MDevel::Peek -Mbigrat -e"Dump(NaN())"
SV = PV(0x225ec4) at 0x188c97c
  REFCNT = 1
  FLAGS = (TEMP,ROK,OVERLOAD)
  RV = 0x224f58
  SV = PVHV(0x229ae4) at 0x224f58
    REFCNT = 1
    FLAGS = (OBJECT,SHAREKEYS)
    IV = 2
    NV = 0
    STASH = 0x188be6c   "Math::BigInt"
    ARRAY = 0x1824734  (0:6, 1:2)
    hash quality = 125.0%
    KEYS = 2
    FILL = 2
    MAX = 7
    RITER = -1
    EITER = 0x0
    Elt "value" HASH = 0x1e720953
    SV = RV(0x183b34c) at 0x19a6fb4
      REFCNT = 1
      FLAGS = (ROK)
      RV = 0x197d210
      SV = PVAV(0x19a56b4) at 0x197d210
        REFCNT = 1
        FLAGS = ()
        IV = 0
        NV = 0
        ARRAY = 0x1830244
        FILL = 0
        MAX = 0
        ARYLEN = 0x0
        FLAGS = (REAL)
        Elt No. 0
        SV = IV(0x19fab0c) at 0x19a6f90
          REFCNT = 1
          FLAGS = (IOK,pIOK)
          IV = 0
    Elt "sign" HASH = 0xe7455c8f
    SV = PV(0x225ea0) at 0x19a6f84
      REFCNT = 1
      FLAGS = (POK,pPOK)
      PV = 0x182281c "NaN"\0
      CUR = 3
      LEN = 4
  PV = 0x224f58 ""
  CUR = 0
  LEN = 0

D:\>

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In reply to Re: How to create nan/inf by Anonymous Monk
in thread How to create nan/inf by syphilis

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