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CLIG(1)			      Programmer's Manual		       CLIG(1)

       ::clig::Float - declare an option with parameters of type float

       package require clig
       namespace import	::clig::*
       setSpec db

       Float  -opt  varname  usage [-c min max]	{[-d default ...]  | [-m]} [-r
       rmin rmax]

       The Float command declares -opt to have zero or more floating point ar-
       guments.	 The  parameters variable and usage as well as the options -c,
       -d and -m are described in clig::String(n).

       -r     instructs	the parser to check that arguments given to  -opt  are
	      within  the inclusive range between rmin and rmax.  Special val-
	      ues for rmin and rmax are	-oo and	oo" denoting negative and pos-
	      itive infinity thereby not constraining the parameters of	-opt.

       WARNING:	 The implementation of option -d is currently incomplete inso-
       far, as the specified default values are	not checked by clig, i.e.  the
       following would go unnoticed:

	      -d 1.0 -r	500.0 600.0

       In  this	 case,	if  option is not on the command line, the clig	parser
       will set	variable varname for its caller	to the out-of-range value 1.0.
       (Maybe this is a	feature?)

       Example use of Float:

	 Float -p prob {list of	probabilities adding up	to one}	\
	     -r	0.0 1.0	 -d 0.1	0.2 0.7	\
	     -c	1 oo

       Please  note,  that the additional constraint requiring the values sum-
       ming to 1.0 cannot be checked by	the parser.

       Within a	Tcl-script, the	parser will set	the variable with name varname
       in the stack-frame of its caller	if and only if option -opt is found on
       the command line	or has a default value.

       The structure returned by the parser contains the slots varnameP,  var-
       name  and varnameC.  The	slot varnameP will be set to a non-zero	value,
       if and only if the option -opt is found on the command line  or	has  a
       default value. Otherwise	it will	be 0. The slot varnameC	will be	set to
       the number of arguments found for -opt.	If the number of arguments for
       -opt  is	 allowed  to  be greater than 1, slot varname has type float*,
       otherwise it has	type float.

       clig_Rest(n), clig_Flag(n), clig_Double(n),  clig_Version(n),  clig_Us-
       age(n),	clig_Name(n), clig_Int(n), clig_parseCmdline(n), clig_Long(n),
       clig_String(n), clig_Commandline(n), clig(1), clig_Description(n)

Kir			       CLIG(1)


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