To iterate is human, to recurse divine.
L. Peter Deutsch
I am doing a startup!
Cross-browser testing from your browser!
I have written my fourth book!
Be faster than Larry Wall in the shell!
You're viewing a comment by Gregor and its responses.
Can someone please provide some examples of why you would want to do things to the nth bit? I don't see what this actually achieves.
How about making an amber and green LED alternately flash on your cool new widget you are building with a microcontroller?
Testing so a robotic control program will know that one of its sensors has tripped. (it has hit the wall, and maybe should reverse for a bit.)
This type of activity is usually reserved for hardware programming / embedded systems. It's what makes your keyboard work with a single chip and an embedded program to convert switch closures into a stream of characters the computer can use as input.
Thanks Mark. So I'm relatively safe in my ignorance of these then - until I start trying to install Linux on my toaster.
A binary word is not just a number. It is also a set: for each possible element value, a 1 tells you it is present, a 0 it is not. A byte can represent days of a week, a 32-bit word is enough for a month. 0x6060c183, shifted and masked, identifies the weekend days in any month.
In C++ std::bitset<> wraps a lot of this stuff in less hacky garb.
(why do I need your e-mail?)
It would be nice if you left your e-mail address. Sometimes I want to send a private message, or just thank for the great comment. Having your e-mail really helps.
I will never ever spam you.
(Your twitter handle, if you have one.)
* use <pre>...</pre> to insert a plain code snippet.
* use <pre lang="lang">...</pre> to insert a syntax highlighted code snippet.
For example, <pre lang="python">...</pre> will insert Python highlighted code.
* use <code>...</code> to highlight a variable or a single shell command.
* use <a href="url" nospam>title</a> to insert links.
<a href="url" nospam>title</a>
* use other HTML tags, such as, <b>, <i>, <blockquote>, <sup>, <sub> for text formatting.
Type the word "0day_143": (just to make sure you're a human)
Please preview the comment before submitting to make sure it's OK.
Peter Krumins' blog about programming, hacking, software reuse, software ideas, computer security, browserling, google and technology.
Reach me at:
Or meet me on:
Subscribe through an RSS feed:
Subscribe through email:
Enter your email address:
Delivered by FeedBurner
See all top articles
See all downloads
See more detailed list of recent articles
See more detailed category information
See more detailed list of all articles