uint8 displays weird characters

Question

I've declared a uint8 variable and when the value in it is printed, I get smiley faces and white spaces. Shouldn't it display integer values?

Answer 1

I bet uint8 is a typedef for unsigned char in your system headers. Then std::cout << u will print symbols rather than integer values, where u is of type uint8. Try

std::cout << static_cast< int >( u );

or

std::cout << +u;

to have numeric values printed.