Swapping Two Numeric Variables In Only Three Instructions

Having done this in the past, needing it again and finding this page:

• http://wiki.answers.com/Q/How_do_you_write_a_program_in_C_to_swap_two_variables_without_using_the_third_one

I've found that two numerics can be swapped quite easily without the use of a third variable:

a = a + b
b = a - b
a = a - b

Neat.

And Again...

Feeling It

Apollo 11 Launched 40 Years Ago Today

See it here: http://blogs.nature.com/news/blog/2009/07/apolloplus40_liftoff_on_apollo.html

Google OS - What's To Come? Goose?

Google have announced that they plan to start building an Operating System. This should be fairly exciting for anyone who mildly doesn't like Windows and is free to start using another system. Also, exciting for anyone who isn't, but also believes that the new GOS (Can we start calling it 'Goose' yet? Too soon?) will be compatible enough to allow easy migration. As a .NET developer myself, I'm doubtful. The only reason that I stayed with Windows Mobile on the smartphone was simply because I could write my own apps for it. Now I've not done that in a dog's age, I'm switching to iPhone ASAP! Android, I'm afraid, hasn't had a look-in. Sorry, it just looks too flimsy.

I guess the other question is that, what with a bunch of things that require Windows to be able to be installed, will all downloadable apps from Google be GOS-compatible right out of the barn?

• http://www.youtube.com/google
• http://googleblog.blogspot.com/2009/07/introducing-google-chrome-os.html
• http://technology.timesonline.co.uk/tol/news/tech_and_web/article6665703.ece#cid=OTC-RSS&attr=1063742
• http://pack.google.com/intl/en-gb/pack_installer.html
• http://timesonline.typepad.com/technology/2009/07/google-chrome-os-its-a-really-really-big-deal-honest.html
• http://fakesteve.blogspot.com/2009/07/lets-all-take-deep-breath-and-get-some.html

That last link is something cool from Google - a collection of free and useful things (not all Google products) ready for download, something most will consider required installs for clean machines.

Social Things

Feel like I should read up on some of these social network and web 2.0 marketing issues of the day...

• http://www.chrisbrogan.com/19-presence-management-chores-you-could-do-every-day/
• http://www.time.com/time/business/article/0,8599,1902604,00.html
• http://www.searchenginepeople.com/blog/the-6-spheres-of-social-media-marketing.html
• http://web2.socialcomputingjournal.com/the_evolving_web_in_2009_web_squared_emerges_as_web_20_mai.htm

Canonical Tagging - SEO

Google, Microsoft and Yahoo can agree on one thing:

• http://searchengineland.com/canonical-tag-16537

It's a good idea to be able to identify the original ('canonical' - http://dictionary.reference.com/browse/canonical)

Lifehacker, Gizmodo And Interesting Links Of The Day

Some unusual stuff today...

• http://gizmodo.com/5305827/papercraft-castle-is-more-gorgeous-and-intricate-than-most-real-castles
• http://lifehacker.com/5304800/google-voice-is-cool-but-do-you-need-it
• http://gizmodo.com/5305791/smoking-booth-concept-uses-wall-of-air-to-make-smokers-feel-like-real-people
• http://gizmodo.com/5305574/michael-jackson-thriller-headphones-have-dual-meanings-now/gallery/
• http://gizmodo.com/5305571/giz-explains-how-to-choose-the-right-graphics-card
• http://gizmodo.com/5305551/gdgt-the-data-driven-gadget-site-is-live
• http://gizmodo.com/5305501/matte-black-macbook-pro-looks-like-a-deadly-stealth-ship/
• http://gizmodo.com/5305500/bono-gets-laser-jacket-public-probably-gets-eye-damage
• http://io9.com/5305769/more-augmented-reality-software-that-will-change-the-future
• http://lifehacker.com/5305094/how-to-crack-a-wi+fi-networks-wep-password-with-backtrack
• http://lifehacker.com/5304572/firefox-35-officially-available-for-download

You Communist!