Problem with utf-8 on Linux

[Pancevo1956]

I am looking for help on how to transfer cpp file with international characters from MSVC++ to Ubuntu.. such as:

const string sTest = "Å*ČĆÅ*Đ".
To save that on MS Visual studio as UTF-8 or codepage 1250... encoding?
What command on linux will recheck file:
I have tried with:

file -bi mzfile:
text/x-c; charset=utf-8

It seems ok, but it still would not recognise the international characters.. Why?
Why mime format?