• X A floating-point literal is written in the form:

  
   X     >>__ ___ __mantissa E__ ___ __exponent__><
   X         |_+_|              |_+_|
   X         |_-_|              |_-_|
  

• X The sign is optional before the mantissa and the exponent; if you
  X omit the sign, the compiler assumes a positive number.

• X The mantissa can contain between 1 and 16 digits. A decimal point
  X must be included in the mantissa.

• X The exponent is represented by an E followed by an optional sign and 1
  X or 2 digits.

• X >_Host_> Under OS/390 and VM, the magnitude of a floating-point
  X literal value must fall between 0.54E-78 and 0.72E+76. For values
  X outside of this range, an E-level diagnostic will be produced and the
  X value will be replaced by either 0 or 0.72E+76, respectively.
  X <_Host_<

• X >_Workstation_> Under AIX, OS/2, and Windows, the magnitude of a
  X floating-point literal value must fall between:
  • X 32-bit representation--1.175(10(-38)) to 3.403(10(38))

  • X 64-bit representation--2.225(10(-308)) to 1.798(10(308))
    X <_Workstation_<

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