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MGH_STRUCT_HAS_TAG

MGH_STRUCT_HAS_TAG

Name


  MGH_STRUCT_HAS_TAG

Purpose


  Determines whether a variable is a structure containing the
  specified tag.

Category


  Structures.

Calling Sequence


  Result = MGH_STRUCT_HAS_TAG(var,tagname)

Positional Parameters


  var (input, scalar)
    The variable to be searched.
  tagname (input, scalar string)
    Name of the tag to search for. (The function is
    case-insensitive.)

Keyword Parameters


  COUNT (output, scalar integer)
    This keyword returns the total number of occurrences of the
    tag. (Its value can be more than 1 in some circumstances.)

Return Value


  This function returns 1 if the variable is a structure containing
  the tag, otherwise 0.

Procedure


  Use TAG_NAMES to produce a list of tag names and search for the
  one we want.
###########################################################################
  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, 1993-10:
    Written.
  Mark Hadfield, 1998-05:
    Added COUNT keyword.



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