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Is Java Regex Thread Safe?
...pers
*/
public final class Validators {
private static final String EMAIL_PATTERN = "^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\\.[A-Za-z0-9-]+)*(\\.[A-Za-z]{2,})$";
private static Pattern email_pattern;
static {
email_pattern = Pattern.compile(EMAIL_PATTERN);
}
/**
* Check...
Is ASCII code 7-bit or 8-bit?
...haracter Codes, 1874-1968" (samizdat copy at http://falsedoor.com/doc/ascii_evolution-of-character-codes.pdf) and then chase its references (many of which are not available online and may be hard to find even with access to a university library, I regret to say).
...
What is two way binding?
...
Concise and short. +1
– Karan_powered_by_RedBull
May 22 at 11:40
add a comment
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Views vs Components in Ember.js
...intended to manage complex graphical elements.
– sly7_7
Sep 3 '13 at 15:50
3
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What methods of ‘clearfix’ can I use?
...oom property triggers hasLayout in IE:
.container {
overflow: hidden;
_overflow: visible; /* for IE */
_zoom: 1; /* for IE */
}
While this works... it is not ideal to use hacks.
PIE: Easy Clearing Method
This older "Easy Clearing" method has the advantage of allowing positioned elements...
Is there a pattern for initializing objects created via a DI container
... the implementation:
class MyIntfImpl : IMyIntf, IMyIntfSetter {
string _runTimeParam;
void Initialize(string runTimeParam) {
_runTimeParam = runTimeParam;
}
string RunTimeParam { get; }
IMyIntf MyIntf {get {return this;} }
}
//Unity configuration:
//Only the setter is mapped to t...
What does template mean?
...
template<void (*F)()>
struct FunctionWrapper {
static void call_it() { F(); }
};
// pass address of function do_it as argument.
void do_it() { }
FunctionWrapper<&do_it> test;
Template reference parameter (passing an integer)
template<int &A>
struct SillyExample {
...
What happens if you static_cast invalid value to enum class?
... to the enumeration type, no value in data[0] can lead to UB for the static_cast.
After CWG 1766 (C++17)
See CWG defect 1766.
The [expr.static.cast]p10 paragraph has been strengthened, so you now can invoke UB if you cast a value that is outside the representable range of an enum to the enum type. ...
How to specify maven's distributionManagement organisation wide?
...ocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>your.company</groupId>
<artifactId>company-parent</artifactId>
<version>1.0.0-SNAPSHOT</version>
&...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
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Casting the pointer to long is an approximation of log_2(float). Casting it back is an approximation of 2^long. This means that you can make the ratio approximately linear.
– wizzwizz4
Sep 1 '17 at 17:29
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