Comments on: The 8 hour journey to a single character http://lbrandy.com/blog/2009/11/the-8-hour-journey-to-a-single-character/ { on programming and the internets, every monday } Tue, 09 Mar 2010 07:51:25 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: Student aid http://lbrandy.com/blog/2009/11/the-8-hour-journey-to-a-single-character/comment-page-1/#comment-26225 Student aid Thu, 04 Feb 2010 07:31:39 +0000 http://lbrandy.com/blog/?p=1138#comment-26225 The journey is very nice for single charter. Example (j = 1; j<20; j+++)that is single charter but j is very imp for 20 number print. The journey is very nice for single charter. Example (j = 1; j<20; j+++)that is single charter but j is very imp for 20 number print.

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]]> By: Kaitlin Duck Sherwood http://lbrandy.com/blog/2009/11/the-8-hour-journey-to-a-single-character/comment-page-1/#comment-25914 Kaitlin Duck Sherwood Tue, 24 Nov 2009 17:53:33 +0000 http://lbrandy.com/blog/?p=1138#comment-25914 I once spent a day looking for what turned out to be the difference between "K" and "k". I also once helped two friends who had been debugging a web server configuration for several hours. They called me over, I looked at a few of the config files (this was httpd 1.3 or 1.4) and then said -- uh, could you put a ENTER right *there*? They went "huh, why???", and I said, "just do it please..." and everything worked. It was the very last line of the file, and their parser required a newline (or maybe CR, I forget) to be at the end of the line in order to recognize the line should be processed. Doh! I once spent a day looking for what turned out to be the difference between “K” and “k”.

I also once helped two friends who had been debugging a web server configuration for several hours. They called me over, I looked at a few of the config files (this was httpd 1.3 or 1.4) and then said — uh, could you put a ENTER right *there*? They went “huh, why???”, and I said, “just do it please…” and everything worked.

It was the very last line of the file, and their parser required a newline (or maybe CR, I forget) to be at the end of the line in order to recognize the line should be processed. Doh!

]]> By: Cameron McCormick http://lbrandy.com/blog/2009/11/the-8-hour-journey-to-a-single-character/comment-page-1/#comment-25913 Cameron McCormick Tue, 24 Nov 2009 16:13:32 +0000 http://lbrandy.com/blog/?p=1138#comment-25913 Interesting story, I once spent about a day and a half trying to make a custom jabber client work, only to find out that one character that was supposed to be capitalized was lower case, it took so long as I kept looking at what appeared to be identical logs - but one worked and one didn't. So I definitely feel your pain. Interesting story, I once spent about a day and a half trying to make a custom jabber client work, only to find out that one character that was supposed to be capitalized was lower case, it took so long as I kept looking at what appeared to be identical logs – but one worked and one didn’t. So I definitely feel your pain.

]]> By: Tech Shankar http://lbrandy.com/blog/2009/11/the-8-hour-journey-to-a-single-character/comment-page-1/#comment-25912 Tech Shankar Tue, 24 Nov 2009 15:18:27 +0000 http://lbrandy.com/blog/?p=1138#comment-25912 It happened in my life too. really nice post. thanks 4 sharing it. It happened in my life too. really nice post. thanks 4 sharing it.

]]> By: John Fremlin http://lbrandy.com/blog/2009/11/the-8-hour-journey-to-a-single-character/comment-page-1/#comment-25911 John Fremlin Tue, 24 Nov 2009 14:54:14 +0000 http://lbrandy.com/blog/?p=1138#comment-25911 It seems to me that you have now regressed to performing a (albeit simpler) colorspace transform inside ffmpeg, which I thought it was your original goal to avoid . . . admittedly it should be done by nice fast code, but it still involves an unnecessary full frame duplication, which could be a pain if you care about the cache footprint. It seems to me that you have now regressed to performing a (albeit simpler) colorspace transform inside ffmpeg, which I thought it was your original goal to avoid . . . admittedly it should be done by nice fast code, but it still involves an unnecessary full frame duplication, which could be a pain if you care about the cache footprint.

]]> By: Jack http://lbrandy.com/blog/2009/11/the-8-hour-journey-to-a-single-character/comment-page-1/#comment-25910 Jack Tue, 24 Nov 2009 14:03:38 +0000 http://lbrandy.com/blog/?p=1138#comment-25910 Thanks for sharing! Felt like an adventure reading this, although I had a vague recollection of where the tale was leading since I dipped my toe into the video conversion world in the mid 1990s just long enough to experience some of your frustration with the numerous formats. Thing are hopefully/probably better now, but then it felt like a wasteland of incompatible, competing formats. Oh, and speaking of all-day simple bugs. In the early 90s, I once spent an entire day on a single line of code in a 3D rendering engine. The code seemed to change its output depending on what called it. Turns out it was worse than that -- output depended on whether it was before or after a comment! Senior developers thought I was nuts so I reduced the test case to a 5-line program. So this: void function() { i=i+i;//comment } produced different output from this void function() { //comment i=i+i; } Yeah, no kidding, that was weird. Turns out it was a bug in the compiler (we were using Microsoft's shiny new C++ compiler, still in Beta) causing i=i+i to produce unpredictable results. Filed a bug report on the phone (this is pre-WWW, Windows 2.1 days). Good times. Thanks for sharing! Felt like an adventure reading this, although I had a vague recollection of where the tale was leading since I dipped my toe into the video conversion world in the mid 1990s just long enough to experience some of your frustration with the numerous formats. Thing are hopefully/probably better now, but then it felt like a wasteland of incompatible, competing formats.

Oh, and speaking of all-day simple bugs. In the early 90s, I once spent an entire day on a single line of code in a 3D rendering engine. The code seemed to change its output depending on what called it. Turns out it was worse than that — output depended on whether it was before or after a comment! Senior developers thought I was nuts so I reduced the test case to a 5-line program. So this:
void function()
{
i=i+i;//comment
}

produced different output from this

void function()
{
//comment
i=i+i;
}

Yeah, no kidding, that was weird. Turns out it was a bug in the compiler (we were using Microsoft’s shiny new C++ compiler, still in Beta) causing i=i+i to produce unpredictable results. Filed a bug report on the phone (this is pre-WWW, Windows 2.1 days). Good times.

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