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What is the effect of extern “C” in C++?
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extern "C" makes a function-name in C++ have C linkage (compiler does not mangle the name) so that client C code can link to (use) your function using a C compatible header file that contains just the declaration of your function. Your function...
How to safely open/close files in python 2.4
I'm currently writing a small script for use on one of our servers using Python. The server only has Python 2.4.4 installed.
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Efficient evaluation of a function at every cell of a NumPy array
Given a NumPy array A , what is the fastest/most efficient way to apply the same function, f , to every cell?
6 Ans...
Replace multiple strings with multiple other strings
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Specific Solution
You can use a function to replace each one.
var str = "I have a cat, a dog, and a goat.";
var mapObj = {
cat:"dog",
dog:"goat",
goat:"cat"
};
str = str.replace(/cat|dog|goat/gi, function(matched){
re...
Get all related Django model objects
How can I get a list of all the model objects that have a ForeignKey pointing to an object? (Something like the delete confirmation page in the Django admin before DELETE CASCADE).
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Why doesn't .NET/C# optimize for tail-call recursion?
I found this question about which languages optimize tail recursion. Why C# doesn't optimize tail recursion, whenever possible?
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What is the difference between currying and partial application?
I quite often see on the Internet various complaints that other peoples examples of currying are not currying, but are actually just partial application.
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When should I use C++14 automatic return type deduction?
...d, we have a compiler that supports automatic return type deduction, part of C++14. With -std=c++1y , I can do this:
7 An...
How do you test functions and closures for equality?
The book says that "functions and closures are reference types". So, how do you find out if the references are equal? == and === don't work.
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Kill a Process by Looking up the Port being used by it from a .BAT
In Windows what can look for port 8080 and try to kill the process it is using through a .BAT file?
14 Answers
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