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C++ const map element access

I tried to use the operator[] access the element in a const C++ map, but this method failed. I also tried to use "at()" to do the same thing. It worked this time. However, I could not find any reference about using "at()" to access element in a const C++ map. Is "at()" a newly added function in C++ ...
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Start may not be called on a promise-style task. exception is coming

... You are getting that error because the Task class already started the task before giving it to you. You should only ever call Start on a task that you create by calling its constructor, and you shouldn't even do that unless you have a compelling re...
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Career day in kindergarten: how to demonstrate programming in 20 minutes? [closed]

...ough to learn new tricks. I would have about 20-30 minutes, without projector or anything. They have an old computer though, which by its look may be a 486, and I am not even sure if it's functioning (Update: it isn't). ...
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Should I git ignore xcodeproject/project.pbxproj file?

..., I offen got xcodeproject/project.pbxproj file changed, but useless info for me, it for compile. 7 Answers ...
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bower command not found

... I would like to add that this is not the most correct answer if you work with multiple projects. Bower should be installed in the node_moduleslocally from package.json and not globally, since different projects can use different versions (that's the whole point of npm). T...
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How to determine if a type implements a specific generic interface type

... This is a very elegant solution! The others I've seen on SO use foreach loops or longer LINQ queries. Keep in mind though that to use this, you need to have .NET framework 3.5. – Daniel T. Nov 10 '09 at 3:25 ...
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What is the difference between encrypting and signing in asymmetric encryption?

...it is done with your private key. I want to be able to encrypt certain information and use it as a product key for my software. I only care that I am the only one who can generate these. If you only need to know it to yourself, you don't need to mess with keys to do this. You may just generate ran...
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How to open the Google Play Store directly from my Android application?

I have open the Google Play store using the following code 23 Answers 23 ...
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What's the difference between .so, .la and .a library files?

...ary (lots of threads can share such libraries so there is no need to have more than one copy of it in memory). But what is the difference between .a and .la ? Are these all static libraries? ...
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What do *args and **kwargs mean? [duplicate]

... Putting *args and/or **kwargs as the last items in your function definition’s argument list allows that function to accept an arbitrary number of arguments and/or keyword arguments. For example, if you wanted to write a function that return...