ROUTINE NAME:
  MGH_CLASS_EXISTS

Purpose

---

  Determine whether the given name represents a class in IDL
  (actually tests whether structures of that name are automatically
  created or have already been created

Calling Sequence

---

  result = mgh_class_exists(name)

Positional Parameters

---

  naem (input, string scalar)
    The name to be tested.

Return Value

---

  The function returns a logical value (byte scalar) indicating
  whether the class exists.
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  This software is provided subject to the following conditions:
  1. NIWA makes no representations or warranties regarding the
    accuracy of the software, the use to which the software may
    be put or the results to be obtained from the use of the
    software. Accordingly NIWA accepts no liability for any loss
    or damage (whether direct of indirect) incurred by any person
    through the use of or reliance on the software.
  2. NIWA is to be acknowledged as the original author of the
    software where the software is used or presented in any form.
###########################################################################

Modification History

---

  Mark Hadfield, 2011-05:
    Written.