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How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
...an without, CPUs are really smart these days. My naive attempts are here.
C++20 [[likely]] and [[unlikely]]
C++20 has standardized those C++ built-ins: How to use C++20's likely/unlikely attribute in if-else statement They will likely (a pun!) do the same thing.
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How to use sed to replace only the first occurrence in a file?
I would like to update a large number of C++ source files with an extra include directive before any existing #includes. For this sort of task, I normally use a small bash script with sed to re-write the file.
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
....age
haoel.handsome = false
haoel.name=nil复制代码
上面看上去像C/C++中的结构体，但是name,age, handsome, website都是key。你还可以像下面这样写义Table：t = {[20]=100, ['name']="ChenHao", [3.14]="PI"}复制代码
这样就更像Key Value了。于是...
Why do we need tuples in Python (or any immutable data type)?
...mutable", which is only partially correct. I've used this many times with C++ maps and sets, though.
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Change / Add syntax highlighting for a language in Sublime 2/3
... -> Open all with current extension as... to set e.g. *.stan files with C++ syntax coloring.
– BoltzmannBrain
Feb 5 '19 at 18:09
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Is it faster to count down than it is to count up?
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I've seen Microsoft's C++ compiler from a few years back make that optimization. It's able to see that the loop index isn't used, so it rearranges it to the fastest form.
– Mark Ransom
May 12 '10 at 22:47
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Function pointers, Closures, and Lambda
...ers for functional languages, also resembles another familiar technique... C++ objects with virtual member functions. The implementations are almost identical.
This observation led to a wisecrack from Henry Baker:
People in the Algol/Fortran world complained for years that they didn't understa...
What are the benefits of using C# vs F# or F# vs C#? [closed]
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F# is not yet-another-programming-language if you are comparing it to C#, C++, VB.
C#, C, VB are all imperative or procedural programming languages. F# is a functional programming language.
Two main benefits of functional programming languages (compared to imperative languages) are 1. that they d...
Why does this Java code compile?
... Take a look at @izogfif answer. Seems like working, because C++ compiler assigns default values to variables. The same way java does for class-level variables.
– Marcin
Apr 4 '13 at 11:54
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The quest for the Excel custom function tooltip
...ice/bb687861.aspx
How you develop the XLL?
Excel XLL SDK with Visual C++ (or anything that can compile a DLL and call the SDK procedures)
Where I can find a quick guide for creating a simple XLL?
http://support.microsoft.com/kb/178474
How I get tooltips?
Implement your function as a ...