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Full Discussion: Dump program variables
Top Forums UNIX for Advanced & Expert Users Dump program variables Post 17697 by AtleRamsli on Tuesday 19th of March 2002 12:37:39 PM
Old 03-19-2002
To do this the way you state it is only possible if you use the symbol table, and you do not want to use a debugging tool as part of your program :-)

You should put all your globals into a struct, and then read and write that struct.

lets say you have a name, and some int, and a float:
Code:
int GL_i;
char GL_name[256];
float GL_f;

Change this to:
Code:
struct {
	int i;
	char name[256];
	float f;

} GL;

As a rule, if you have lots of globals spread out like in the first example, your program is badly structured.
A global is a potential bug.
For every global, contemplate making it static.
For the structure above, contemplate storing it in a dynamically allocated buffer - you will win big: You can have multiple instances, and your program (or library) will become safer, for a library this may provide reentrancy (each instance has its own data - or you will have to lock it!)

Atle
Last edited by vbe; 02-01-2020 at 01:18 PM..
 

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LEARN ABOUT MOJAVE

dump

dump(n) 																   dump(n)

__________________________________________________________________________________________________________________________________________________

NAME

       dump - Dump information about Tcl interpreter in TkCon

SYNOPSIS

       dump method ?-nocomplain? ?-filter pattern? ?--? pattern ?pattern ...?

_________________________________________________________________

DESCRIPTION

       The  dump  command  provides  a way for the user to spit out state information about the interpreter in a Tcl readable (and human readable)
       form.  It takes the general form:

       dump method ?-nocomplain? ?-filter pattern? ?--? pattern ?pattern ...?

       The patterns represent glob-style patterns (as in string match pattern $str).  -nocomplain will prevent dump from throwing an error  if	no
       items matched the pattern.  -filter is interpreted as appropriate for the method.  The various methods are:

       dump command args
	      Outputs one or more commands.

       dump procedure args
	      Outputs one or more procs in sourceable form.

       dump variable args
	      Outputs  the values of variables in sourceable form.  Recognizes nested arrays.  The -filter pattern is used as to filter array ele-
	      ment names and is interepreted as a glob pattern (defaults to {*}).  It is passed down for nested arrays.

       dump widget args
	      Outputs one or more widgets by giving their configuration options.  The -filter pattern is used as to filter the config options  and
	      is interpreted as a case insensitive regexp pattern (defaults to {.*}).

SEE ALSO

       idebug(n), observe(n), tkcon(1), tkcon(n), tkconrc(5)

KEYWORDS

       Tk, console, dump

COPYRIGHT

       Copyright (c) Jeffrey Hobbs <jeff at hobbs.org>

TkCon									2.5								   dump(n)
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