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When to use wrapper class and primitive type
...ire a object if you want to maximize numeric performance. This is advised by the documentation, and this article demonstrates how auto-boxing can cause a large performance difference.
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Can anyone explain this strange behavior with signed floats in C#?
...MethodImpl(MethodImplOptions.InternalCall)])
When all of the fields are 8 bytes wide, CanCompareBits mistakenly returns true, resulting in a bitwise comparison of two different, but semantically identical, values.
When at least one field is not 8 bytes wide, CanCompareBits returns false, and the c...
How do you specify command line arguments in Xcode 4?
...; Edit Scheme... -> Run -> Arguments
(Copy-Paste from the link given by Jano)
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Is there a difference between foo(void) and foo() in C++ or C?
...o arguments"
void foo(void) means "a function foo taking no arguments"
By writing foo(void), therefore, we achieve the same interpretation across both languages and make our headers multilingual (though we usually need to do some more things to the headers to make them truly cross-language; name...
Is there hard evidence of the ROI of unit testing?
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Yes. This is a link to a study by Boby George and Laurie Williams at NCST and a another by Nagappan et al. I'm sure there are more. Dr. Williams publications on testing may provide a good starting point for finding them.
[EDIT] The two papers above spec...
Difference: std::runtime_error vs std::exception()
...in case of various runtime errors. It has a dual purpose. It can be thrown by itself, or it can serve as a base class to various even more specialized types of runtime error exceptions, such as std::range_error, std::overflow_error etc. You can define your own exception classes descending from std::...
How can I enable the Windows Server Task Scheduler History recording?
...ab), click Enable All Tasks History
That's it. Not sure why this isn't on by default, but it isn't.
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How To Create Table with Identity Column
... constraint index is useful when you actually want to change the options.
By the way, I prefer to name such a column HistoryId, so it matches the names of the columns in foreign key relationships.
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curl POST format for CURLOPT_POSTFIELDS
...ame with @ and use the full path. The filetype can be explicitly specified by following the filename with the type in the format ';type=mimetype'. This parameter can either be passed as a urlencoded string like 'para1=val1&para2=val2&...' or as an array with the field name as key and field d...
If unit testing is so great, why aren't more companies doing it? [closed]
...SB key and UAC turned ON?
The problem is that the unit tests are written by the same programmer who wrote the function, to the same set of assumptions and with the same level of skill.
To really work the tests must be written by someone else, only to the published specs without them seeing the cod...