lundi 23 octobre 2017

Check if type has begin [duplicate]

This question already has an answer here:

I would like to check if a type supplied as a template parameter has begin, i.e. if it is possible to call std::begin on it. I know that it's possible to check if a type has a specified method (related question) but std::begin seems to be a different kind of problem (though looks similar).

I tried but failed and have no idea how to solve this problem.

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