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IS_IEEE_BIG

IS_IEEE_BIG

Name


IS_IEEE_BIG

Purpose


Determine if the current machine uses IEEE, big-endian numbers.

Explanation


      (Big endian implies that byteorder XDR conversions are no-ops).

Calling Sequence


flag = is_ieee_big()

Input Parameters


      None

Returns


      1 if the machine appears to be IEEE-compliant, 0 if not.

Common Blocks


None.

Side Effects


None

Restrictions


Procedure


      The first byte of the two-byte representation of 1 is examined.
      If it is zero, then the data is stored in big-endian order.

Modification History


      Written 15-April-1996 by T. McGlynn for use in MRDFITS.
13-jul-1997 jkf/acc - added calls to check_math to avoid
underflow messages in V5.0 on Win32 (NT).
Converted to IDL V5.0 W. Landsman September 1997
      Follow RSI and just do a single test W. Landsman April 2003



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