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What's the difference between emulation and simulation? [duplicate]
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Based on software and system engineering experience, I'd summarise the difference as follows:
Simulation: for me, this is always in software - every aspect of the real system is only MODELLED by some code and/or mathematics....
Compile time string hashing
...ace, so you can store it in a std::unordered_map if you need consistency.
Based off of @JerryCoffin's excellent answer and the comment thread below it, but with an attempt to write it with current C++11 best practices (as opposed to anticipating them!).
Note that using a "raw hash" for a switch st...
Why does Java switch on contiguous ints appear to run faster with added cases?
... @AndrewBissell My guess is that the different behaviour is based on either (i) cross-architecture performance tests which have shown that the array of pointers is only efficient when the number of cases is larger than 18 or (ii) the code is profiled as it is run and the profiler dete...
Extracting just Month and Year separately from Pandas Datetime column
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Note that the resulting column is not of the datetime64 dtype anymore. Using df.my_date_column.astype('datetime64[M]'), as in @Juan's answer converts to dates representing the first day of each month.
– Nickolay
May 26 '18 at 19:52
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C++ Best way to get integer division and remainder
...imize, though, at least for g++. A simple experiment with g++ 6.3.0 on x86_64 revealed that with no optimization at all, you get two idivl instructions, but with -O1 or greater, you get one. As the manual says, “Without any optimization option … Statements are independent”.
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Make Adobe fonts work with CSS3 @font-face in IE9
...he appropriate tool you can set it to installable embedding allowed.
For a 64-bit version, check @user22600's answer.
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Importing CommonCrypto in a Swift framework
...Swift. Also, this article about the same problem with sqlite3 was useful.
Based on the above, the steps are:
1) Create a CommonCrypto directory inside the project directory. Within, create a module.map file. The module map will allow us to use the CommonCrypto library as a module within Swift. Its...
pycharm running way slow
... suggest you some configuration change or workaround to remedy the problem based on the analysis of the provided data.
All the other "solutions" (like enabling Power Save mode and changing the highlighting level) will just hide the real problems that should be fixed.
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Format date and time in a Windows batch script
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Here is how I generate a log filename (based on http://ss64.com/nt/syntax-getdate.html):
@ECHO OFF
:: Check WMIC is available
WMIC.EXE Alias /? >NUL 2>&1 || GOTO s_error
:: Use WMIC to retrieve date and time
FOR /F "skip=1 tokens=1-6" %%G IN ('WMIC Pat...
How does python numpy.where() work?
...47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81,
82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98,
99]),)
>>> np.where(a == 90)
(array([90]),)
a = a*40
&...