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Full Discussion: Controlling elaboration order in C++ programming
Top Forums Programming Controlling elaboration order in C++ programming Post 302930277 by achenle on Thursday 1st of January 2015 01:01:55 PM
Old 01-01-2015
Quote:
Originally Posted by DGPickett
Yes, exactly -- you can make them print in debug mode, perhaps defined by an env. var, not using any objects, just C-isms.
Code:
int global_debug = -1 ; // In global space
 .
 .
 .
// top of constructor for class XXXXX
if ( global_debug < 0 ){
  if ( NULL == getenv( "DEBUG" )){
    global_debug = 0 ;
  } else {
    global_debug = 1 ;
  }
}
if ( global_debug ){
  fputs( "\nObject XXXXX Constructor start.\n", stderr );
}

But then you'd be distributing code with debug strings in it - might not be something you'd want to do, given what developers can put in debug strings.

Nor may you want customers to be able to run in debug mode. Or maybe you DO want that.

Just be aware of what's in that binary and what it can do.

Fun problem for those with too much time on their hands (or a requirement to do it): come up with a secure way to modify debug level while the process is still running.
 

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LEARN ABOUT FREEBSD

uusched

uusched(1M)						  System Administration Commands					       uusched(1M)

NAME

       uusched - uucp file transport program scheduler

SYNOPSIS

       /usr/lib/uucp/uusched [-u debug-level] [-x debug-level]

DESCRIPTION

       uusched	is  the   uucp(1C) file transport scheduler. It is usually started by the daemon uudemon.hour that is started by  cron(1M) from an
       entry in user uucp's crontab file:

	      11,41 * * * * /etc/uucp/uucp/uudemon.hour

OPTIONS

       The options are for debugging purposes only. debug-level is a number between  0 and  9. Higher numbers give more detailed debugging  infor-
       mation:

       The following options are supported:

       -u debug-level  Passes the -u debug-level option  uucico(1M) as -x debug-level.

       -x debug-level  Outputs debugging messages from	uusched.

FILES

       /etc/uucp/Devices

       /etc/uucp/Permissions

       /etc/uucp/Systems

       /var/spool/locks/*

       /var/spool/uucp/*

       /var/spool/uucppublic/*

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWbnuu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       uucp(1C), uustat(1C), uux(1C), cron(1M), uucico(1M), attributes(5)

SunOS 5.10							    19 May 1993 						       uusched(1M)
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