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What are forward declarations in C++?
...o a Car, but Car.h can't be included here as it would result in a compiler error. If Car.h was included, that would then try to include Wheel.h which would include Car.h which would include Wheel.h and this would go on forever, so instead the compiler raises an error. The solution is to forward decl...
Best explanation for languages without null
Every so often when programmers are complaining about null errors/exceptions someone asks what we do without null.
11 Answe...
How to put Google Maps V2 on a Fragment using ViewPager
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i am getting error while using this method .please help PID: 16260 java.lang.NullPointerException at com.example.imran.maps.MeFragment.setUpMapIfNeeded(MeFragment.java:115) at com.example.imran.maps.MeFragmen...
Sending a JSON to server and retrieving a JSON in return, without JQuery
...e JSON data to the REST API that is hosted o the localhost but getting the error XHR failed loading: POST
– viveksinghggits
Jul 6 '17 at 17:34
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How do I set up email confirmation with Devise?
...evise no longer provides migration helpers, and so t.confirmable raises an error. Instead, copy the block labeled "Confirmable" from their migration guide.
3. Generate the devise views, with either of the following commands,so you can override the devise mailer views:
rails generate devise:views #...
MIME type warning in chrome for png images
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The website is hosted on Azure and I get this annoying error packing my console.
– Shimmy Weitzhandler
Aug 19 '13 at 3:53
add a comment
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Load a UIView from nib in Swift
... UIView doesn't have property view, so calling self.view causes an error
– Nastya Gorban
Apr 15 '15 at 8:39
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Print all day-dates between two dates [duplicate]
...pe and sanity check. start and end args default set to None is asking for errors.
– Ramez Ashraf
Jun 25 '17 at 11:52
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“Undefined reference to” template class constructor [duplicate]
...n the entire compilation process, or we will get the 'undefined reference' error. (This applies to the other methods of cola<T> also.)
Understanding the problem
The problem is caused by the fact that main.cpp and cola.cpp will be compiled separately first. In main.cpp, the compiler will impl...
Lua string to int
...local function ToInteger(number)
return math.floor(tonumber(number) or error("Could not cast '" .. tostring(number) .. "' to number.'"))
end
In which case you explicitly convert the string (or really, whatever it is) into a number, and then truncate the number like an (int) cast would do in Ja...