Provided by:
clig_1.9.11.1-3_all 
NAME
::clig::Float - declare an option with parameters of type float
SYNOPSIS
package require clig
namespace import ::clig::*
setSpec db
Float -opt varname usage [-c min max] {[-d default ...] | [-m]} [-r
rmin rmax]
DESCRIPTION
The Float command declares -opt to have zero or more floating point
arguments. 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.
tcl
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.
C
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(1), clig_Commandline(7), clig_Description(7), clig_Double(7),
clig_Flag(7), clig_Int(7), clig_Long(7), clig_Name(7), clig_Rest(7),
clig_String(7), clig_Usage(7), clig_Version(7), clig_parseCmdline(7)