I don’t know why, but the JLS is very clear: Discussion Note that null is not a legal element value for any element type. And the definition of a default element is: DefaultValue: default ElementValue Unfortunately I keep finding that the new language features (Enums and now Annotations) have very unhelpful compiler error messages when … Read more
Yes both are the same. But struct Example { string a, b; Example(Example&& mE) = default; Example& operator=(Example&& mE) = default; } This version will permits you to skip the body definition. However, you have to follow some rules when you declare explicitly-defaulted-functions : 8.4.2 Explicitly-defaulted functions [dcl.fct.def.default] A function definition of the form: attribute-speciļ¬er-seqopt … Read more
Try this: Create: app/code/local/MagePal/EnableDuplicateProductStatus/etc/config.xml <?xml version=”1.0″?> <config> <modules> <MagePal_EnableDuplicateProductStatus> <version>1.0.1</version> </MagePal_EnableDuplicateProductStatus> </modules> <global> <models> <enableduplicateproductstatus> <class>MagePal_EnableDuplicateProductStatus_Model</class> </enableduplicateproductstatus> </models> <events> <catalog_model_product_duplicate> <observers> <enableduplicateproductstatus> <type>singleton</type> <class>enableduplicateproductstatus/observer</class> <method>productDuplicate</method> </enableduplicateproductstatus> </observers> </catalog_model_product_duplicate> </events> </global> </config> Create: app/code/local/MagePal/EnableDuplicateProductStatus/Model/Observer.php class MagePal_EnableDuplicateProductStatus_Model_Observer { /** * Prepare product for duplicate action. * * @param Varien_Event_Observer $observer * @return object */ public function productDuplicate(Varien_Event_Observer … Read more
One way to do it SELECT IFNULL(MIN(`file`), ‘default.webm’) `file` FROM `show`, `schedule` WHERE `channel` = 1 AND `start_time` <= UNIX_TIMESTAMP() AND `start_time` > UNIX_TIMESTAMP()-1800 AND `show`.`id` = `schedule`.`file` ORDER BY `start_time` DESC LIMIT 1 Since you return only one row, you can use an aggregate function, in that case MIN(), that ensures that you’ll get … Read more
The reason that you have to uncomment the default is that your function says that it returns a String, but if you only have case labels defined for A and B then the function will not return a value if you pass in anything else. Java requires that all functions that state that they return … Read more
Interesting. I had more luck sending IAC WILL ECHO IAC WILL SUPPRESS_GO_AHEAD IAC WONT LINEMODE 255 251 1 255 251 3 255 252 34 The IAC WONT LINEMODE seems to be redundant: my telnet client seems to get to the right state without it, but I left it in for completeness.
You can get the precision before you change it, with std::ios_base::precision and then use that to change it back later. You can see this in action with: #include <ios> #include <iostream> #include <iomanip> int main (void) { double d = 3.141592653589; std::streamsize ss = std::cout.precision(); std::cout << “Initial precision = ” << ss << ‘\n’; … Read more
You need to call a(int) explicitly in the constructor initializer list: b() : aInstance(3) {} Where 3 is the initial value you’d like to use. Though it could be any int. See comments for important notes on order and other caveats.
From the WebKit source respository Unofficial Grid of several major browsers
I’d like to cite Lukas Rytz (from here): The reason is that we wanted a deterministic naming-scheme for the generated methods which return default arguments. If you write def f(a: Int = 1) the compiler generates def f$default$1 = 1 If you have two overloads with defaults on the same parameter position, we would need … Read more