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Copy constructor for a class with unique_ptr
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Since the unique_ptr can not be shared, you need to either deep-copy its content or convert the unique_ptr to a shared_ptr.
class A
{
std::unique_ptr< int > up_;
public:
A( int i ) : up_( new int( i ) ) {}
A( const A& a ) : up_( new int( *a.up_ ) ) {}
};
i...
What's the point of the X-Requested-With header?
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A good reason is for security - this can prevent CSRF attacks because this header cannot be added to the AJAX request cross domain without the consent of the server via CORS.
Only the following headers are allowed cross domain:
Accept
Accept...
multiple definition of template specialization when using different objects
...e a specialized template in different object files, I get a "multiple definition" error when linking. The only solution I found involves using the "inline" function, but it just seems like some workaround. How do I solve that without using the "inline" keyword? If that's not possible, why?
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mkdir's “-p” option
So this doesn't seem like a terribly complicated question I have, but it's one I can't find the answer to. I'm confused about what the -p option does in Unix. I used it for a lab assignment while creating a subdirectory and then another subdirectory within that one. It looked like this:
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Missing Push Notification Entitlement
I have an app for submission when it got rejected and I got the message
17 Answers
17
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Bootstrap modal appearing under background
...er, my modal is appearing underneath the grey fade (backdrop) and is non editable.
55 Answers
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How do I prevent the padding property from changing width or height in CSS?
I am creating a site with DIV s. Everything's working out except when I create a DIV. I create them like this (example):
7...
Using “Object.create” instead of “new”
...en advocating for a long time. How do I replace new in the code below with Object.create ?
15 Answers
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How to forward declare a template class in namespace std?
...ull template declaration of a template class to be able to forward declare it?
4 Answers
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How to fix: “HAX is not working and emulator runs in emulation mode”
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Yes it should be fixed, HAXM isn't working.
How much RAM is set for use inside your AVD configuration ?
768M is a good number for it, but most importantly this number has to be lower or equal to the memory usage you have set dur...