printf VS cout

[Detlev Casanova]

Hi
I'm a student from belgium at the Faculté Polytechnique de Mons.
I have some C++ courses (They call it C+ because we haven't learn OOP :( )...
So here's my problem :
They say that with C++, the printf() function must not be used at all, that 
cout is to be used. they say that printf() is only for C programming.

On a personnal project, I use printf() a lot even if it is in C++.

So, is it true ? Do I have to use cout instead of printf in C++ code ?

Thanks.

Detlev.
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