vdata_id
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IN:
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Vdata access identifier returned from VSattach
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field_index
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IN:
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Number determined by assigning each field in the record a zero-based index
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Purpose
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Retrieves the order of the specified field in a given vdata.
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Return value
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Returns the order of the field if successful and FAIL (or -1) otherwise.
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FORTRAN
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integer function vffordr(vdata_id, field_index)
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integer vdata_id, field_index
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