01-18-2013
Quote:
Originally Posted by
kristinu
I understand what you mean. I only have a single Tomog used in Main.
Passing by-value instead of by-reference will make duplicates, potentially leading to one or more of the problems mentioned above. All it takes is a single missed &. But you can't duplicate a namespace even by accident.
Quote:
Do you see the use of namespaces for passing variables to classes in this way in actual applications?
Yes. The standard cin, cout, and cerr variables exist inside the
std namespace, for example.
This User Gave Thanks to Corona688 For This Post:
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LEARN ABOUT MOJAVE
namespacex
namespacex(n) Namespace utility commands namespacex(n)
__________________________________________________________________________________________________________________________________________________
NAME
namespacex - Namespace utility commands
SYNOPSIS
package require Tcl 8.5
package require namespacex ?0.1?
::namespacex hook add ?namespace? cmdprefix
::namespacex hook proc ?namespace? arguments body
::namespacex hook on ?namespace? guardcmdprefix actioncmdprefix
::namespacex hook next arg...
::namespacex info allchildren namespace
::namespacex info allvars namespace
::namespacex info vars namespace ?pattern?
::namespacex state get namespace
::namespacex state set namespace dict
::namespacex state drop namespace
_________________________________________________________________
DESCRIPTION
This package provides a number of utility commands for working with namespaces.
API
::namespacex hook add ?namespace? cmdprefix
::namespacex hook proc ?namespace? arguments body
::namespacex hook on ?namespace? guardcmdprefix actioncmdprefix
::namespacex hook next arg...
::namespacex info allchildren namespace
This command returns a list containing the names of all child namespaces in the specified namespace and its children. The names are
all fully qualified.
::namespacex info allvars namespace
This command returns a list containing the names of all variables in the specified namespace and its children. The names are all
relative to namespace, and not fully qualified.
::namespacex info vars namespace ?pattern?
This command returns a list containing the names of all variables in the specified namespace.
::namespacex state get namespace
This command returns a dictionary holding the names and values of all variables in the specified namespace and its child namespaces.
Note that the names are all relative to namespace, and not fully qualified.
::namespacex state set namespace dict
This command takes a dictionary holding the names and values for a set of variables and replaces the current state of the specified
namespace and its child namespaces with this state. The result of the command is the empty string.
::namespacex state drop namespace
This command unsets all variables in the specified namespace and its child namespaces. The result of the command is the empty
string.
KEYWORDS
extended namespace, info, namespace unknown, namespace utilities, state (de)serialization, unknown hooking, utilities
COPYRIGHT
Copyright (c) 200? Neil Madden (http://wiki.tcl.tk/12790)
Copyright (c) 200? Various (http://wiki.tcl.tk/1489)
Copyright (c) 2010 Documentation, Andreas Kupries
namespacex 0.1 namespacex(n)