I too, love coding in C. I love how you can control almost everything. There's nothing "mysterious" or abstracted away. Maybe I'm OCD, but I love understanding exactly what is going on in my programs at all times
#include <stdio.h>
int main() {
char a = 3;
char b = 8;
char result = a * b;
printf("%u %u %u %u", sizeof(a), sizeof(b), sizeof(result), sizeof(a * b));
return 0;
}
PRINTOUT/x86-64: 1 1 1 4
Surprising results on x86, probably not on Arduino or embedded platforms.
The phenomenon is integer promotion in C.
EDIT: "Char isn't an arithmetic type!" The same is true for short, too.
EDIT2: The consequences are: Might need to manually %= 0x100 instead of relying on data type's inherent modulation in multi-operational arithmetic, making rotation a necessarily pre-scan operation for LE/BE conversion instead of a process-transparent operation and I had a third one... hm. Also, maybe speed loss?
