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Why are #ifndef and #define used in C++ header files?
...his case HEADERFILE_H) is defined. Then if it's not defined, it defines it and continues to the rest of the page.
When the code is included again, the first ifndef fails, resulting in a blank file.
That prevents double declaration of any identifiers such as types, enums and static variables.
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How do you pass custom environment variable on Amazon Elastic Beanstalk (AWS EBS)?
...anyone who uses the .ebextensions/*.config way: nowadays you can add, edit and remove environment variables in the Elastic Beanstalk web interface.
The variables are under Configuration → Software Configuration:
Creating the vars in .ebextensions like in Onema's answer still works.
It can eve...
AI2 SideBar Extension
... button. With larger apps, however, the available space quickly decreases and the layout becomes confusing. A side bar can help here. There are a number of implementations, but I haven't found a sufficiently extensive one and developed one myself. Almost all properties are adjustable. If somethin...
Git Server Like GitHub? [closed]
... time Subversion user that is going to try Git. I have read some about it and understand the distributed nature - I can see a lot of the benefits.
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What to use as an initial version? [closed]
...ersion 1.0.0. As soon as I have some stuff together, I release it as 1.0.0 and move on with 1.1.0.
12 Answers
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Should I use `this` or `$scope`?
There are two patterns in use for accessing controller functions: this and $scope .
8 Answers
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Entity framework self referencing loop detected [duplicate]
...strange error. I'm experimenting with a .NET 4.5 Web API, Entity Framework and MS SQL Server. I've already created the database and set up the correct primary and foreign keys and relationships.
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Go > operators
Could someone please explain to me the usage of << and >> in Go? I guess it is similar to some other languages.
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How does free know how much to free?
... array), but I do not have to pass the size to the free function. Why not, and can I use this same technique in my own functions to save me from needing to cart around the extra variable of the array's length?
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Bundler not including .min files
...tweaked behaviour has changed in Microsoft.AspNet.Web.Optimization package and the tweak does not work anymore, as pointed out by many commenters. Right now I cannot reproduce the issue at all with the version 1.1.3 of the package.
Please see sources of System.Web.Optimization.BundleCollection (you...