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Is the sizeof(some pointer) always equal to four?
...ve a normal "NEAR" pointer was 16 bits and a pointer declared as "FAR" was more, probably 24, though I'm not sure.
– rmeador
Dec 29 '08 at 23:22
19
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Aren't promises just callbacks?
...ite asynchronous code in a way that resembles synchronous code and is much more easy to follow:
api().then(function(result){
return api2();
}).then(function(result2){
return api3();
}).then(function(result3){
// do work
});
Certainly, not much less code, but much more readable.
But...
What requirement was the tuple designed to solve?
...oup together a bunch of otherwise unrelated data in some structure that is more lightweight than a class" is useful in many, many places, not just for formal parameter lists of methods. It's useful when a method has two things to return, or when you want to key a dictionary off of two data rather th...
How can I view MSIL / CIL generated by C# compiler? Why is it called assembly?
...
Yes it is, more exactly in the .text section of the PE file (portable executable = *.exe or *.dll). More information can be found here.
The best choice is to use ILSpy (Reflector is no longer free). It's a free disassembler that can dis...
How to estimate how much memory a Pandas' DataFrame will need?
...y_usage(index=True).sum()
731731000
Also, passing deep=True will enable a more accurate memory usage report, that accounts for the full usage of the contained objects.
This is because memory usage does not include memory consumed by elements that are not components of the array if deep=False (defau...
What is the __del__ method, How to call it?
...might not necessary happen right after and might not happen at all.
Even more, variables can live for a long time for many reasons, e.g. a propagating exception or module introspection can keep variable reference count greater than 0. Also, variable can be a part of cycle of references — CPython...
The smallest difference between 2 Angles
... = targetA - sourceA
a += (a>180) ? -360 : (a<-180) ? 360 : 0
In a more verbose way:
a = targetA - sourceA
a -= 360 if a > 180
a += 360 if a < -180
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How to Detect if I'm Compiling Code with a particular Visual Studio version?
... in any recent boost install for some usage examples.
Some values for the more recent versions of the compiler are:
MSVC++ 14.24 _MSC_VER == 1924 (Visual Studio 2019 version 16.4)
MSVC++ 14.23 _MSC_VER == 1923 (Visual Studio 2019 version 16.3)
MSVC++ 14.22 _MSC_VER == 1922 (Visual Studio 2019 vers...
Automatically enter SSH password with script
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I've added an answer with a more secure usage of sshpass.
– Ian
Nov 20 '17 at 17:08
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What is the Difference Between read() and recv() , and Between send() and write()?
...ify certain options for the actual operation. Those functions are slightly more specialized (for instance, you can set a flag to ignore SIGPIPE, or to send out-of-band messages...).
Functions read()/write() are the universal file descriptor functions working on all descriptors.
...