I have a program that uses unsigned chars to represent integers with a small range. I find myself needing to clear them to 0 in several different parts of the program, I have also recently started using splint and apparently:
unsigned char c = 0;
gives the warning:
Variable c initialized to type int, expects unsigned char: 0
Types are incompatible.
As there is no suffix for a literal char, How is it best to resolve this? I think I have a few options:
1: Ignore the warning.
2: Cast every time:
unsigned char c = (unsigned char)0;
3: Make a var to cut down the length of the code:
unsigned char uc_0 = (unsigned char)0;
unsigned char c = uc_0;
4: A function:
static inline unsigned char uchar(int in)
{
return (unsigned char)in;
}
unsigned char c = uchar(0);
splint has an option +charint that will treat char int as interchangeable.