intn VSfexist(int32 vdata_id, char *field_name_list)
vdata_id
IN:
Vdata identifier returned by VSattach
field_name_list
List of field names
Purpose
Checks to see if certain fields exist in the current vdata.
Return value
Returns a value of 1 if all field(s) exist and FAIL (or -1) otherwise.
Description
VSfexist checks if all fields with the names specified in the parameter field_name_list exist in the vdata identified by the parameter vdata_id.
The parameter field_name_list is a string of comma-separated fieldnames (e.g., "PX,PY,PZ" in C and 'PX,PY,PZ' in Fortran).
FORTRAN
integer function vsfex(vdata_id, field_name_list)
integer vdata_id
character*(*) field_name_list