Blog - Title

April, 2012

  • Fabulous Adventures In Coding

    GUID Guide, part one

    • 38 Comments
    What is a GUID? The acronym stands for "globally unique identifier"; GUIDs are also called UUIDs, which stands for "universally unique identifier". (It is unclear to me why we need two nigh-identical names for the same thing, but there you have it.) A...
  • Fabulous Adventures In Coding

    GUID guide, part two

    • 16 Comments
    So how is it that a GUID can be guaranteed to be unique without some sort of central authority that ensures uniqueness, a la the ISBN system? Well, first off, notice that the number of possible GUIDs is vastly larger than the number of possible ISBNs...
  • Fabulous Adventures In Coding

    null is not false, part two

    • 16 Comments
    In Raymond Smullyan 's delightful books about the Island of Knights and Knaves -- where, you'll recall, knights make only true statements and knaves make only false statements -- the knights and knaves are of course clever literary devices to explore...
  • Fabulous Adventures In Coding

    null is not false, part three

    • 12 Comments
    Returning now to the subject at hand: we would like to allow user-defined "overloads" of the & and | operators in C#, and if we are going to have & and | be overloadable, it seems desirable to have && and || be overloadable too. But now...
  • Fabulous Adventures In Coding

    A brief digression

    • 14 Comments
    Before we continue our exploration of truthiness in C#, a brief digression. I mentioned last time the "knights and knaves" puzzles of logician Raymond Smullyan. Though I do enjoy those puzzles, my favourite of his puzzles are his chess puzzles, and my...
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