Re: char vs. unsigned char

[David Chisnall]

On 12 Mar 2015, at 21:11, Riccardo Mottola <address@hidden> wrote:
> 
> I wonder why these were declared as unsigned as first.

It's convention in some codebases to use 'unsigned char' to mean 'char sized 
data'.  uint8_t is generally better for this, as it explicitly states that it's 
8-bit integer values and not things that might be interpreted as characters.

The C spec regards char, signed char, and unsigned char as distinct types, but 
requires that char have the same range as either signed char or unsigned char.

For data buffers, void* may be what you actually want.

David