Every programmer eventually finds a need to display warnings, debug information, or just status updates as they build their code and watch it run.  Lots of times this takes the form of streaming text to std::cout. But, what if you only want certain information to print at certain times, or you’d like to suddenly change from logging to a terminal to logging to a file?

After several tries, I came up with my logger class.  Basically, using static class members and c-style macros, I came up with a logging method that turns on and off easily, allows easy redirection, and is easy to use everywhere in your code.

At it’s simplest, this logger is used as such:

#include <iostream>
#include "logger.h"

using namespace std;	

int main (int argc, char * const argv[]) {
	bool someLogType = true;
	LOG(someLogType) << "This will be logged to clog\n";
	return 0
}

But the logger class also offers globally accessible log types and the ability to redirect the output wherever you want. The following snippet shows this use.

#include <iostream>
#include <sstream>
#include "logger.h"

using namespace std;	

int main (int argc, char * const argv[]) {
	// Set these to turn various logs on or off dynamically
	NORMAL = true;
	DEBUG = false;
	VERBOSE = true;

	LOG(NORMAL) << "This will log\n";
	LOG(DEBUG) << "But this one won't\n";
	LLOG(VERBOSE) << "This one will log, but with the name of the logtype prepended to the message\n";

	// Now we redirect the log output to a custom location.  This could be a file or any ostream
	stringstream newLog;
	logger::setOutstream(newLog);

	LOG(NORMAL) << "This will log\n";
	LOG(DEBUG) << "But this one won't\n";
	LLOG(VERBOSE) << "This one will log, but with the name of the logtype prepended to the message\n";

	string results = newLog.str();
	cout << "In the new log: \n" << results << "\n";

	// Always reset the logger to clog before the program exits or you will get a BAD_ACCESS error
	// I'm still trying to work out that problem, but this is an easy fix for now
	logger::setOutstream(clog);
	return 0;

}

Get the code here:

• logger.h
• logger.cpp
• example.cpp

Good luck and good coding!

Maggie is a bit camera shy but MD snapped this great picture the other day. It’s cell phone quality, but her personality comes through.

Miss Maggie Mae, HRH Princess Muddy Paws

She’s pretty much back to her old self but still a little anti-social. Many nights we have to coax her off her bed to come downstairs and hang with us while we watch tv. I definitely miss the days of two dogs snoring in syncopation by our feet.

I’ve been building a few apps recently and have found that a linear response over a range of numbers has been a poor solution. I needed to be able to apply different response curves to user interface components (knobs, sliders, touchpads) as well as on screen display objects, characters, etc.

I needed a good name for the class, but instead came up with the pretty poor moniker ‘RangedNumbers’. I’ll change it when I come up with a better one.

So the idea is, a ‘ranged number’ is instantiated, initialised for the required range then a simple call with a value in that range will result with a percentage that can be applied to the intended recipient accordingly. I realised that an inverted curve would be handy too, so have added that functionality.

I have included exponential and powered curves as well as linear.

So to use the ranged number system:

I have put together two demos to show the RangedNumber class in action:

Firstly using a Slider component. Grab the slider and watch how the markers are represented on all the displayed response curves.

A demonstration of how to implement non-linear response curves

Now here is the same demo but this time using a TouchPad. Click on the touchpad to engage. In this demo horizontal movement controls the standard curves and vertical the inverted.

How to implement non-linear response curves with a touchpad

The source for these demos and the Ranged Number class can be found here: Ranged Number ZIP

Ooooh Weeee!

For those who can’t wait “Til the Casket Drops” December 8th, (like me) we got a preview!

Click HERE to Listen/Download

ty/yw: RapRadar

Lots of pictures up on my flickr page–late-night long exposures with Colin, shots of East Coast Park, Ana’s Birthday, Sec 3 Camp in Malaysia… Check the link on the right of the page.

On my urban planning blog, Steven can plan, I wanted to add a link the category’s RSS feed when the category page is viewed. Here’s the code for that.

In your theme’s index.php page, insert this code inside the IF(is_category) statement:


// get the current Category so we can get ID and Name
if (is_category()) {
global $wp_query;
$cat = $wp_query->get_queried_object();
}

// Show the output
$output = "Subscribe to <a href=".$link.">".$name."</a> posts: <a href=".$rss.">RSS</a> or <a href=".$atom.">Atom</a>";
echo $output;


Wenn man mit foreach() arbeitet, sollte man vorher prüfen ob das Array überhaupt einen Eintrag hat. Das habe ich nun einfach mit der Funktion count() realisiert.

if(count($arr) >= 1) {
foreach ($arr as $value) {
echo "Value: $value\n";
}
}

visiting this beautiful city again, for all of those good reasons and more.

Curtis is bringing back that “rrrrgghhh” sound. Literally.

Beanie Sigel ft. Curtis – I Go Off (30sec Snippet)

Beanie Sigel Ft. 50 Cent – I Go Off [Snippet]
LISTEN INSIDE

NEW EXCLUSIVES! ONLY ON RUNNJ.TV

Beanie Sigel Ft. 50 Cent – I Go Off [Snippet]
…::LISTEN::…

anyone who was watching last night’s phenomenal almagro-nadal match in paris as part of the bnp paribas masters series would understand why tennis is such a thrill to watch even if you have never held a raquette.

the match went to rafael nadal 6-3, 6-7, 5-7 after an incredible roller-coaster ride that lasted 3 hours and 14 minutes and had the rest of us glued to the screens.

it had all the drama and heartbreak one could ask for, and then some -at times, i could not take it any longer and was watching it between my fingers, so tense did it all get. (i recall doing that with horror movies some years back before i decided to stop watching horror-fests and started watching sports instead.)

the incredible intensity of the second set that lasted nearly 1.5 hours, the palpable tension of the 6 deuce matches, and finally the anti-climax of the last set when a cramp in almagro’s left leg made him throw the game with some drama-queen shenanigans and nadal once again proved why he is a champion and the world’s number one number two, and a man among boys.

Beanie Sigel (ft. 50 Cent) – I Go Off

چه شکر هاست درین شهر که قانع شده اند
شاهبازانِ طریقت به مقامِ مگسی

حافظ-

the smell of winter-
is in the air

it’s in the chill of the mornings (even when the temperature is higher than some mid-summer mornings)
it’s in the the mid-day cool (even though the sun is high in the sky)
it’s in that old familiar whiff of burning firewood that makes its way from chimney tops to your nostrils (cartloads of which firewood are being hauled off every which way every day)
and in the old familiar sight of snow-
lightly capping mountains surrounding kabul

it’s in the eyes of those who will suffer the worst in the winter for want of warm clothing and warm food and warm homes;
those who await the spring most eagerly, most meaningfully (and unlike you and i who like it for the romance of the daffodils)