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Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
...bject.h: No such file or directory...compilation terminated error. Can anyone tell me if it's a problem with my code, or some esoteric subtlety with Cython?
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How to exclude a directory in find . command
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One of the comments in the accepted answer points out the problem. -prune does not exclude the directory itself, it exclude its content, which means you are going to get an unwanted line in the output with the excluded direct...
How can prepared statements protect from SQL injection attacks?
...illuminates the essence of Prepared Statements. Consider two ways to query one's database where user input is involved:
Naive Approach
One concatenates user input with some partial SQL string to generate a SQL statement. In this case the user can embed malicious SQL commands, which will then be se...
Where is the IIS Express configuration / metabase file found?
...here:
My Documents > IIS Express > config
usually, but not always, one of these paths will work
%userprofile%\documents\iisexpress\config\applicationhost.config
%userprofile%\my documents\iisexpress\config\applicationhost.config
Update for VS2019
If you're using Visual Studio 2019+ chec...
Unique ways to use the Null Coalescing operator [closed]
...se branches of the original IF statement called the same method, replacing one of its arguments with a different value if a certain input is NULL. With the null coalescing operator, it's one call. This is really powerful when you have a method that needs two or more such substitutions!
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How to get the value from the GET parameters?
...th; i++) {
var pair = vars[i].split("=");
var key = decodeURIComponent(pair[0]);
var value = decodeURIComponent(pair[1]);
// If first entry with this name
if (typeof query_string[key] === "undefined") {
query_string[key] = decodeURIComponent(value);
// If secon...
Please explain the exec() function and its family
...lementations, but the idea is to create as close a copy as possible). Only one process calls fork() but two processes return from that call - sounds bizarre but it's really quite elegant
The new process (called the child) gets a different process ID (PID) and has the PID of the old process (the pare...
Move entire line up and down in Vim
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If I want to swap one line with the line above I usually do the following
ddkP
Explanation
dd will delete the line and add it to the default register.
k will move up a line (j would move down a line)
P will paste above the current line
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How to highlight a current menu item?
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Just in case anyone was wondering about the code to not double up if the path is "/", this is it (sorry for the formatting): $scope.getClass = function (path) { if ($location.path().substr(0, path.length) == path) { if (...
Heap vs Binary Search Tree (BST)
...update it whenever that element could be changed: on insertion of a larger one swap, on removal find the second largest. Can we use binary search tree to simulate heap operation? (mentioned by Yeo).
Actually, this is a limitation of heaps compared to BSTs: the only efficient search is that for the ...