Why are you changing declarations everywhere to use auto?

[daniel]

This topic was already discussed in length here:

Avoid 'auto' in tutorials

I would like to advocate not using ‘auto’ in tutorial code examples. While convenient for the programmer, the learner would like to know the type. It gives a better idea of what the returned value contains, and facilitates class-reference lookup and such.

I stated my opinion there, but am happy to reiterate:

auto has more advantages in my opinion:

• a variable deduced with auto can never be uninitialised
• when the code is refactored, you avoid unconscious unnecessary implicit casts

And I follow Herb Sutter here, who has more good reasons to prefer almost always auto