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How do I detect unsigned integer multiply overflow?
...ting a program in C++ to find all solutions of a b = c , where a , b and c together use all the digits 0-9 exactly once. The program looped over values of a and b , and it ran a digit-counting routine each time on a , b and ab to check if the digits condition was satisfied.
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Why is #!/usr/bin/env bash superior to #!/bin/bash?
...ven seen one enterprising individual suggest using #!/bin/bash was wrong and bash functionality would be lost by doing so.
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Is there a built-in method to compare collections?
...tents of a couple of collections in my Equals method. I have a Dictionary and an IList. Is there a built-in method to do this?
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Android emulator and virtualbox cannot run at same time
Whenever I have Virtualbox running, I cannot start an Android emulator image (and vice versa). The error message in the AVD manager is
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C# Passing Function as Argument [duplicate]
...s mentioned above works but there are also delegates that do the same task and also define intent within the naming:
public delegate double MyFunction(double x);
public double Diff(double x, MyFunction f)
{
double h = 0.0000001;
return (f(x + h) - f(x)) / h;
}
public double MyFunctionMet...
What's the difference between Cache-Control: max-age=0 and no-cache?
...r Cache-Control: max-age=0 implies that the content is considered stale (and must be re-fetched) immediately, which is in effect the same thing as Cache-Control: no-cache .
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Best practice for partial updates in a RESTful service
I am writing a RESTful service for a customer management system and I am trying to find the best practice for updating records partially. For example, I want the caller to be able to read the full record with a GET request. But for updating it only certain operations on the record are allowed, like ...
jQuery callback for multiple ajax calls
...hree ajax calls in a click event. Each ajax call does a distinct operation and returns back data that is needed for a final callback. The calls themselves are not dependent on one another, they can all go at the same time, however I would like to have a final callback when all three are complete.
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Best practices to test protected methods with PHPUnit
...If you're using PHP5 (>= 5.3.2) with PHPUnit, you can test your private and protected methods by using reflection to set them to be public prior to running your tests:
protected static function getMethod($name) {
$class = new ReflectionClass('MyClass');
$method = $class->getMethod($name);...
Align contents inside a div
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text-align aligns text and other inline content. It doesn't align block element children.
To do that, you want to give the element you want aligned a width, with ‘auto’ left and right margins. This is the standards-compliant way that works eve...