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C++ templates that accept only certain types

...ply forward-declare a global template, but only define (explicitly or partially specialise) it for the valid types: template<typename T> class my_template; // Declare, but don't define // int is a valid type template<> class my_template<int> { ... }; // All pointer types...
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How can I get the current page name in WordPress?

...theme.php, inside the function get_page_template(), which is of course is called before your page theme files are parsed, so it is available at any point inside your templates for pages. Although it doesn't appear to be documented, the $pagename var is only set if you use permalinks. I guess this i...
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Declaring an enum within a class

...uct Color { enum Type { Red, Green, Black }; Type t_; Color(Type t) : t_(t) {} operator Type () const {return t_;} private: //prevent automatic conversion for any other built-in types such as bool, int, etc template<typename T> operator T () const; }; ...
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How to install a specific version of a ruby gem?

Using the command-line gem tool, how can I install a specific version of a gem? 6 Answers ...
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How do you run a SQL Server query from PowerShell?

... would use the following. It is what we use at my company. $ServerName = "_ServerName_" $DatabaseName = "_DatabaseName_" $Query = "SELECT * FROM Table WHERE Column = ''" #Timeout parameters $QueryTimeout = 120 $ConnectionTimeout = 30 #Action of connecting to the Database and executing the query a...
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Is there a JavaScript / jQuery DOM change listener?

Essentially I want to have a script execute when the contents of a DIV change. Since the scripts are separate (content script in the Chrome extension & webpage script), I need a way simply observe changes in DOM state. I could set up polling but that seems sloppy. ...
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ActionBar text color

...ring) doesn't work for <font color='#'>text</font>. Additionally, if you want to use a color resource, this code can be used to get the correct HEX String, and removing the alpha if needed (the font tag does not support alpha): int orange = getResources().getColor(R.color.orange); St...
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Difference between object and class in Scala

...ompanion object of class C; note that the companion object is not automatically an instance of C. Also see Scala documentation for object and class. object as host of static members Most often, you need an object to hold methods and values/variables that shall be available without having to firs...
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Can I call jquery click() to follow an link if I haven't bound an event handler to it with bind

...ger() and window.location also, and I can make it work as intended with all three. 10 Answers ...
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How to set cornerRadius for only top-left and top-right corner of a UIView?

...WillLayoutSubviews() { super.viewWillLayoutSubviews() // Call the roundCorners() func right there. theView.roundCorners(corners: [.topLeft, .topRight], radius: 30) } } share | ...