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Type-juggling and (strict) greater/lesser-than comparisons in PHP
PHP is famous for its type-juggling. I must admit it puzzles me, and I'm having a hard time to find out basic logical/fundamental things in comparisons.
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print call stack in C or C++
...re any way to dump the call stack in a running process in C or C++ every time a certain function is called? What I have in mind is something like this:
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Dynamically update values of a chartjs chart
...rt using chartjs and it works fine. Now I want to update the values on a time based interval. My problem is that after I created the chart, I do not know how to update its values correctly...
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What is the best regular expression to check if a string is a valid URL?
...array($IPv6address, $IPvFuture))) . '\\]';
$port = cc($DIGIT, '*');
$scheme = cc($ALPHA) . ncg(cc('-' . $ALPHA . $DIGIT . '\\+\\.'), '*');
/* New or changed in RFC3987 */
$iprivate = '\x{E000}-\x{F8FF}\x{F0000}-\x{FFFFD}\x{100000}-\x{10FFFD}';
$ucschar = '\x{A0}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0...
What characters can be used for up/down triangle (arrow without stem) for display in HTML?
.../wiki/Arrow_%28symbol%29#Arrows_in_Unicode
http://en.wikipedia.org/wiki/Geometric_Shapes
Lastly, these arrows are not ASCII, including ↑ and ↓: they are Unicode.
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LINQPad [extension] methods [closed]
Does anyone have a complete list of LINQPad extension methods and methods, such as
4 Answers
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How do I pass a unique_ptr argument to a constructor or a function?
...mantics in C++11 and I don't know very well how to handle unique_ptr parameters in constructors or functions. Consider this class referencing itself:
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Sample settings.xml for maven
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Here's the stock "settings.xml" with comments (complete/unchopped file at the bottom)
License:
<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE f...
Git and Mercurial - Compare and Contrast
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Disclaimer: I use Git, follow Git development on git mailing list, and even contribute a bit to Git (gitweb mainly). I know Mercurial from documentation and some from discussion on #revctrl IRC channel on FreeNode.
Thanks to all peo...
App Inventor 2 扩展 · App Inventor 2 中文网
...to use extension components
2.1 Importing extension components
2.2 Some sample extensions to try
2.3 Building projects with extension components
2.4 Deleting extension components
2.5 Sharing projects that use extension components
2.6 Extension component repositories
2.7 Naming extension c...