Should I switch to std:: or is it better to stay with using namespace std?

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vladik_koresh2019-01-12 17:59:49

C++ / C#

vladik_koresh, 2019-01-12 17:59:49

I write in C++. I heard that good programmers use std:: . Should I also go and write in the same way, or is it better to stay on using namespace std and not hang the crap on my ass?

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2 answer(s)

G

German, 2019-01-12
@mrjbom

And what are the downsides to using using namespace std ? In my opinion, none, it only makes the code more readable.

V

Vitaly, 2019-01-12
@vt4a2h

The main problem is possible name conflicts, especially if you specify the use of multiple namespaces in this way. In addition, there is a risk of getting a lot of options for various constructs in the IDE's autocompletion list. By itself, std is a very short identifier, so it doesn't make much sense to omit it.
PS
In addition, never write "using namespace" in header files. Except when you really understand what you are doing.