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Difference between decimal, float and double in .NET?
...he score given to divers or ice skaters, for example.
For values which are more artefacts of nature which can't really be measured exactly anyway, float/double are more appropriate. For example, scientific data would usually be represented in this form. Here, the original values won't be "decimally ...
Define preprocessor macro through CMake?
...d for this purpose. However, recently the command has been superseded by a more fine grained approach (separate commands for compile definitions, include directories, and compiler options).
An example using the new add_compile_definitions:
add_compile_definitions(OPENCV_VERSION=${OpenCV_VERSION})
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How do you perform a left outer join using linq extension methods
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How to “perfectly” override a dict?
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Adding options to select with javascript
...oth mine and Sime Vidas' answer, run because I thought his looked a little more understandable/intuitive than mine and I wondered how that would translate into implementation. According to Chromium 14/Ubuntu 11.04 mine is somewhat faster, other browsers/platforms are likely to have differing results...
Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplic
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Use of 'const' for function parameters
...er. I lean the other way and mark parameters const whenever possible; it's more expressive. When I read someone else's code, I use little indicators like this to judge how much care they put into writing their code alongside things like magic numbers, commenting, and proper pointer usage, etc.
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Python multiprocessing PicklingError: Can't pickle
...h is not picklable. It could be the function or its arguments. To find out more about the problem, I suggest make a copy of your program, and start paring it down, making it simpler and simpler, each time re-running the program to see if the problem remains. When it becomes really simple, you'll eit...
How to iterate over values of an Enum having flags?
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How do I consume the JSON POST data in an Express application
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