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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)
...
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
...
How to add a custom Ribbon tab using VBA?
...ns:mso=""http://schemas.microsoft.com/office/2009/07/customui"">" & _
"<mso:ribbon></mso:ribbon></mso:customUI>"
Open path & fileName For Output Access Write As hFile
Print #hFile, ribbonXML
Close hFile
End Sub
Call LoadCustRibbon sub in the Wookbook open even and ca...
How to overload functions in javascript?
...latest version of Safari when I try this resetProgressBar: function(display_errors, lockout = false).
– Nick
Jul 19 '16 at 2:46
...
How is “=default” different from “{}” for default constructor and destructor?
...leted destructor:
struct A
{
private:
~A();
};
class Widget {
A a_;
public:
#if 1
virtual ~Widget() = default;
#else
virtual ~Widget() {}
#endif
};
Then the =default solution will compile, but Widget won't be a destructible type. I.e. if you try to destruct a Widget, you'll get a ...
How to prevent Browser cache for php site
...
Note: If you use session_start() afterwards, it will overwrite your header with Cache-Control: private, max-age=10800, pre-check=10800 because 180 minutes is the default value of session.cache_expire. If you can not avoid starting the session, but y...
What's the idiomatic syntax for prepending to a short python list?
...
If you can go the functional way, the following is pretty clear
new_list = [x] + your_list
Of course you haven't inserted x into your_list, rather you have created a new list with x preprended to it.
share
...
JSON and XML comparison [closed]
...
What about JSON Schema? en.wikipedia.org/wiki/JSON#JSON_Schema
– John Doe
Sep 2 '15 at 15:11
5
...
How to access the correct `this` inside a callback?
...ontrived example:
var arr = [1, 2, 3];
var obj = {multiplier: 42};
var new_arr = arr.map(function(v) {
return v * this.multiplier;
}, obj); // <- here we are passing `obj` as second argument
Note: Whether or not you can pass a value for this is usually mentioned in the documentation of that...