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How do I convert an integer to binary in JavaScript?
...nswered Apr 22 '13 at 19:43
fernandosaviofernandosavio
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How exactly does __attribute__((constructor)) work?
...nguish them from function calls.
GCC-specific syntax.
Yes, this works in C and C++.
No, the function does not need to be static.
The destructor runs when the shared library is unloaded, typically at program exit.
So, the way the constructors and destructors work is that the shared object file cont...
Accessing inactive union member and undefined behavior?
...ce (other than answers claiming it's UB but without any support from the standard).
5 Answers
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How to determine day of week by passing specific date?
...DateFormat("dd/M/yyyy").parse(dateString)
you can use joda-time's DateTime and call dateTime.dayOfWeek() and/or DateTimeFormat.
edit: since Java 8 you can now use java.time package instead of joda-time
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What is the difference between join and merge in Pandas?
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I always use join on indices:
import pandas as pd
left = pd.DataFrame({'key': ['foo', 'bar'], 'val': [1, 2]}).set_index('key')
right = pd.DataFrame({'key': ['foo', 'bar'], 'val': [4, 5]}).set_index('key')
left.join(right, lsuffix='_l', rsuffix='_r')
val_l ...
Get element at specified position - JavaScript
...lly I'm looking to write a function that takes two input parameters (the x and y coordinates) and returns the html element at the position on the screen represented by the parameters.
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Is there a way to instantiate objects from a string holding their class name?
...<DerivedA>;
map["DerivedB"] = &createInstance<DerivedB>;
And then you can do
return map[some_string]();
Getting a new instance. Another idea is to have the types register themself:
// in base.hpp:
template<typename T> Base * createT() { return new T; }
struct BaseFactor...
Extracting text from HTML file using Python
...ssentially the same output I would get if I copied the text from a browser and pasted it into notepad.
32 Answers
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How to get a function name as a string?
...es indicate to the reader this is a special attribute. As a bonus, classes and modules have a __name__ attribute too, so you only have remember one special name.
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What does void mean in C, C++, and C#?
Looking to get the fundamentals on where the term " void " comes from, and why it is called void. The intention of the question is to assist someone who has no C experience, and is suddenly looking at a C-based codebase.
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