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Can virtual functions have default parameters?
...oo(int i = 2) { cout << "B::foo" << i << endl; }
};
void test() {
A a;
B b;
A* ap = &b;
a.foo();
b.foo();
ap->foo();
}
you should get
A::foo1
B::foo2
B::foo1
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...
Replacing NAs with latest non-NA value
...l the other entries here. For the basic set of features, tidyr::fill is fastest while also not failing the edge cases. The Rcpp entry by @BrandonBertelsen is faster still, but it's inflexible regarding the input's type (he tested edge cases incorrectly due to a misunderstanding of all.equal).
If yo...
getenv() vs. $_ENV in PHP
...tenv() is a better choice because, as a function, it can be overloaded for testing purposes. Whereas overwriting your $_SERVER or $_ENV variables might interfere with test frameworks and other libraries and ultimately require a lot more work to carry out safely.
...
Java equivalent of C#'s verbatim strings with @
...actually do anything with it other than pass it on to a web service. I was testing the response from a c# WCF service being called from Java. As I was just hard coding a test it was at this point that I discovered this limitation. I;m not actually doing anything 'file based' with the string.
...
How to export a Vagrant virtual machine to transfer it
...y the lines you need.
In my case these are the hosts I need:
192.168.50.4 test.dev
192.168.50.4 vvv.dev
...
Where the 192.168.50.4 is the IP of my Virtual machine and test.dev and vvv.dev are developing hosts.
I hope this can help you :) I'll be happy if you feedback your go.
Some particulariti...
Swift Beta performance: sorting arrays
...firm that Clang does something about it), since a profiler run on the last test-case of this question yields this “pretty” result:
As was said by many others, -Ofast is totally unsafe and changes language semantics. For me, it's at the “If you're going to use that, just use another languag...
How to estimate a programming task if you have no experience in it [closed]
...ted". Even if you don't use all the time you asked for, you will have more testing time, or can release "early".
I've always been far too optimistic in my estimates, and it can put a lot of stress into your life, especially when you are a young programmer without the experience and self-confidence ...
Difference between path.normalize and path.resolve in Node.js
...bsolute path. Example (my current working directory was /Users/mtilley/src/testing):
> path.normalize('../../src/../src/node')
'../../src/node'
> path.resolve('../../src/../src/node')
'/Users/mtilley/src/node'
In other words, path.normalize is "What is the shortest path I can take that will...
Why is Swift compile time so slow?
...eDictionary
dic.addEntriesFromDictionary([
"url" : self.url?.absoluteString ?? "",
"title" : self.title ?? ""
])
return dic.copy() as NSDictionary
because the property title was of type var title:String? and not NSString. The compiler was going crazy when adding it to the ...
What is the purpose of the “final” keyword in C++11 for functions?
... is as follows:
// This pure abstract interface creates a way
// for unit test suites to stub-out Foo objects
class FooInterface
{
public:
virtual void DoSomething() = 0;
private:
virtual void DoSomethingImpl() = 0;
};
// Implement Non-Virtual Interface Pattern in FooBase using final
// (Alt...