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Why doesn't C have unsigned floats?
...If C++ did support it, then you would be sometimes using an unsigned float and not realizing that your performance has just been killed. If C++ supported it then every floating point operation would need to be checked to see if it is signed or not. And for programs that do millions of floating poi...
No newline at end of file
... to tell the difference between a file where there is a newline at the end and one where is not. Diff has to output a newline anyway, or the result would be harder to read or process automatically.
Note that it is a good style to always put the newline as a last character if it is allowed by the fi...
How do I call Objective-C code from Swift?
...t
If you have an existing class that you'd like to use, perform Step 2 and then skip to Step 5. (For some cases, I had to add an explicit #import <Foundation/Foundation.h to an older Objective-C File.)
Step 1: Add Objective-C Implementation -- .m
Add a .m file to your class, and name it Cu...
Can CSS detect the number of children an element has?
...elects based on the number of siblings.
Credit for this technique goes to André Luís (discovered) & Lea Verou (refined).
Don't you just love CSS3? ????
CodePen Example:
https://codepen.io/mattlubner-the-decoder/pen/ExaQZQR
Sources:
http://andr3.net/blog/post/142 (André Luís)
http://...
What guidelines for HTML email design are there? [closed]
...ting in emails while maintaining good visual stability across many clients and web based email interfaces?
9 Answers
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Best way to hide a window from the Alt-Tab program switcher?
I've been a .NET developer for several years now and this is still one of those things I don't know how to do properly. It's easy to hide a window from the taskbar via a property in both Windows Forms and WPF, but as far as I can tell, this doesn't guarantee (or necessarily even affect) it being hid...
Executing periodic actions in Python [duplicate]
... One thing to watch out for here is start time "drift". I just ran a test and my times drifted by +0.05s in about 33 iterations. I was running 1 second polls, and this means a drift of 20% in less than a minute. You can reduce drift by calling the threading.Timer at the start of the function rather...
What is a rune?
...in that range. Furthermore, 32 is in fact the offset between the uppercase and lowercase codepoint of the character. So by adding 32 to 'A', you get 'a' and vice versa.
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How do I detect what .NET Framework versions and service packs are installed?
...ncies, .NET 3.0 adds additional functionality to .NET 2.0 so both .NET 2.0 and .NET 3.0 must both evaulate as being installed to correctly say that .NET 3.0 is installed. Likewise, .NET 3.5 adds additional functionality to .NET 2.0 and .NET 3.0, so .NET 2.0, .NET 3.0, and .NET 3. should all evaluate...
Convert an NSURL to an NSString
... answered Nov 10 '11 at 16:23
RandallRandall
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