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Determine if two rectangles overlap each other?
...akes the following inputs from the user to construct rectangles (between 2 and 5): height, width, x-pos, y-pos. All of these rectangles will exist parallel to the x and the y axis, that is all of their edges will have slopes of 0 or infinity.
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Abstract Class vs Interface in C++ [duplicate]
... about C++. As you know, there is no clear distinction between interface and abstract class in C++ unlike Java and C#. When would it be more preferrable to use an interface instead of an abstract class in C++? Could you give some examples?
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What characters do I need to escape in XML documents?
... to escape all five characters in text. However, the three characters ", ' and > needn't be escaped in text:
<?xml version="1.0"?>
<valid>"'></valid>
Attributes
The safe way is to escape all five characters in attributes. However, the > character needn't be escaped in ...
Stateless and Stateful Enterprise Java Beans
I am going through the Java EE 6 tutorial and I am trying to understand the difference between stateless and stateful session beans. If stateless session beans do not retain their state in between method calls, why is my program acting the way it is?
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How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
I've been digging through some parts of the Linux kernel, and found calls like this:
10 Answers
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What does extern inline do?
I understand that inline by itself is a suggestion to the compiler, and at its discretion it may or may not inline the function, and it will also produce linkable object code.
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What's the purpose of the LEA instruction?
For me, it just seems like a funky MOV. What's its purpose and when should I use it?
16 Answers
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What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
There are tons of questions and answers about Git versus TFVC Source Control, but no current answers cover the integration of Git into Team Foundation Server/Service that I can find.
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Selenium WebDriver: Wait for complex page with JavaScript to load
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If anyone actually knew a general and always-applicable answer, it would have been implemented everywhere ages ago and would make our lives SO much easier.
There are many things you can do, but every single one of them has a problem:
As Ashwin Prabhu said,...
How to determine the memory footprint (size) of a variable?
...mods-available/memprof.ini
sudo php5enmod memprof
service apache2 restart
And then in my code:
<?php
memprof_enable();
// do your stuff
memprof_dump_callgrind(fopen("/tmp/callgrind.out", "w"));
Finally open the callgrind.out file with KCachegrind
Using Google gperftools (recommended!)
First of ...