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Python syntax for “if a or b or c but not all of them”
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All great answers, but this wins for conciseness, with great short-circuiting. Thanks all!
– Chris Wilson
May 13 '13 at 12:46
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Need for predictable random generator
...o this time, again, they have a 1 in 5 chance. If they fail, next time the winning interval is 4 and 5; a 2 in 5 chance of success. With these choices, after 8 failures, they are certain to succeed.
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Why is the use of tuples in C++ not more common?
... mind). But while tuple is handy, it's not such an overwhelming and clear win that people bother with it.
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Wait until file is unlocked in .NET
...t, and the wait time between retries.
NOTE: Unfortunately, the underlying Win32 error (ERROR_SHARING_VIOLATION) is not exposed with .NET, so I have added a small hack function (IsSharingViolation) based on reflection mechanisms to check this.
/// <summary>
/// Wraps sharing violation...
Why does Clojure have “keywords” in addition to “symbols”?
... Is that it? Typing : rather than ' doesn't seem like a big win, especially since : is an extra keypress on most keyboards.
– Laurence Gonsalves
Oct 6 '09 at 19:29
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How can I programmatically generate keypress events in C#?
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The question is tagged WPF but the answers so far are specific WinForms and Win32.
To do this in WPF, simply construct a KeyEventArgs and call RaiseEvent on the target. For example, to send an Insert key KeyDown event to the currently focused element:
var key = Key.Insert; ...
Why do you not use C for your web apps?
...grams. That means you pay more.
Also, C doesn't have the benefit of drawing from an enormous single standard library of functionality as .NET (and the other major web-centric platforms) has. So you may have to either buy components, or perform interop, or roll your own functionality which comes...
Why .NET String is immutable? [duplicate]
...nute's extra start-up to save a massive amount of memory was a performance win in the case in question). With mutable objects that can't be done.
No side-effects can come from passing an immutable type as a method to a parameter unless it is out or ref (since that changes the reference, not the obje...
HTML5shiv vs Dean Edwards IE7-js vs Modernizr - which to choose?
...ard that jQuery won but for now there's no telling which one of these will win this particular fight. I don't think I could recommend dean edwards ie7-js as it mostly deals with just getting IE7 to act like other more intelligent and likable browsers as opposed to leveraging the whole HTML5 thing as...
General guidelines to avoid memory leaks in C++ [closed]
...R the creating scope is finished. This is common with PostThreadMessage in Win32:
void foo()
{
boost::shared_ptr<Object> obj(new Object());
// Simplified here
PostThreadMessage(...., (LPARAM)ob.get());
// Destructor destroys! pointer sent to PostThreadMessage is invalid! Zohnoes...