./

mg_hasroutine.pro

Determines if a given routine is available to call. This can be useful when there are optional libraries that will be used if available.

For example, try:

  IDL> print, mg_hasroutine('mg_src_root')
     1
  IDL> print, mg_hasroutine('mg_fake_routine')
     0

MG_HASROUTINE can also give basic information about the routine that it found like whether it is a system routine or a function:

  IDL> print, mg_hasroutine('mg_hostname', is_system=sys, is_function=func)
     1
  IDL> print, sys, func
     1   1

result = mg_hasroutine(routine [, /is_system] [, /is_function])

Determine if a given routine name is available to call.

1B if a routine is available to call, 0B if not

routine in required type=string

routine name to look up

is_system out optional type=boolean: set to a named variable to determine if the routine is a system routine
is_function out optional type=boolean: set to a named variable to determine if the routine is a function