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Full Discussion: Input arguments with C++
Top Forums Programming Input arguments with C++ Post 302758173 by Corona688 on Friday 18th of January 2013 02:31:07 PM
Old 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.
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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)
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