| MAKE_ARRAY question [message #24732] |
Fri, 13 April 2001 09:15 |
Paul van Delst
Messages: 364
Registered: March 1997
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Senior Member |
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Hi there,
I want to create an array that by default should be FLOAT but can be specified as DOUBLE
by the user as a keyword input to a function. Instead of the following:
FUNCTION my_func, n_pts, double = double
IF ( KEYWORD_SET( double ) ) THEN $
x = MAKE_ARRAY( n_pts, /DOUBLE, /NOZERO ) $
ELSE $
x = MAKE_ARRAY( n_pts, /FLOAT, /NOZERO )
.....
END
can I rely on the fact that NO type keywords to MAKE_ARRAY means default FLOAT? I.e. :
FUNCTION my_func, n_pts, double = double
x = MAKE_ARRAY( n_pts, DOUBLE = double, /NOZERO )
.....
END
The MAKE_ARRAY documentation does not specifically state that the default array created is
a FLOAT. Does anyone know if this *is* documented anywhere so I'm not setting my function
up (which I use *a lot*) to fall in a heap when IDL 5.5+ is released and RSI happened to
decide a default LONG would be better?
Or is there some other natty way to do this?
Thanks for any help.
paulv
--
Paul van Delst A little learning is a dangerous thing;
CIMSS @ NOAA/NCEP Drink deep, or taste not the Pierian spring;
Ph: (301)763-8000 x7274 There shallow draughts intoxicate the brain,
Fax:(301)763-8545 And drinking largely sobers us again.
paul.vandelst@noaa.gov Alexander Pope.
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