Function decFloatIsNormal

extern/decNumber/decBasic.c:2427–2435

  return DFISSIGNED(df) && !DFISZERO(df) && !DFISNAN(df);
  }
uInt decFloatIsNormal(const decFloat *df) {
  Int exp;                         // exponent
  if (DFISSPECIAL(df)) return 0;
  if (DFISZERO(df)) return 0;
  // is finite and non-zero
  exp=GETEXPUN(df)                 // get unbiased exponent ..
     +decFloatDigits(df)-1;        // .. and make adjusted exponent
  return (exp>=DECEMIN);           // < DECEMIN is subnormal
  }
uInt decFloatIsPositive(const decFloat *df) {
  return !DFISSIGNED(df) && !DFISZERO(df) && !DFISNAN(df);
  }