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Compiling a java program into an executable [duplicate]
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C++ equivalent of java's instanceof
...}
This is not good oo design, but it can be a workaround and its cost is more or less only a virtual function call. It also works regardless of RTTI is enabled or not.
Note that this approach doesn't support multiple levels of inheritance so if you're not careful you might end with code looking l...
How to convert an array to object in PHP?
...er execution of your one-liner will be a duplicate of $array['x'], not any more a reference to the original array. This might be harmless in some applications, but for large arrays it wastes memory and might mess up execution if the reference is being used later on.
– The Copro...
Is there an IDictionary implementation that, on missing key, returns the default value instead of th
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Or more compactly: return (dictionary.ContainsKey(key)) ? dictionary[key] : default(TValue);
– Peter Gluck
Oct 9 '12 at 19:41
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How to make a SIMPLE C++ Makefile
...esn't scale well to a substantial piece of software (like DOGS which takes more than 15 minutes to compile from the ground up on my MacBook).
Instead you could write a file called makefile like this:
tool: tool.o support.o
g++ -g -o tool tool.o support.o -L/sw/lib/root -lCore -lCint -lRIO -lNe...
Valid to use (anchor tag) without href attribute?
...nts do this by default, but non-button elements do not. Sometimes it makes more sense to bind the click trigger to a different key. For example, a "help" button in a web app might be bound to F1.
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When should you not use virtual destructors?
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What is the difference between native code, machine code and assembly code?
...t. What you say may be true of Microsoft-supported languages, but there's more compiled languages than are supported by Visual Studio.
– David Thornley
Aug 10 '10 at 14:36
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Regular expression to match numbers with or without commas and decimals in text
... you're working with JavaScript or Ruby or something, things start looking more complex:
(?:^|\s)(\d*\.?\d+|\d{1,3}(?:,\d{3})*(?:\.\d+)?)(?!\S)
You'll have to use capture groups; I can't think of an alternative without lookbehind support. The numbers you want will be in Group 1 (assuming the whole...
Applications are expected to have a root view controller at the end of application launch
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