Testing the ldiv() assumption; I am not able to hang this minimal code , "so ldiv is clean" (update: not so, see below)
#include <stdlib.h>
void setup() {
}
void loop() {
unsigned long a, b;
a= 12345;
b = 1000;
ldiv_t d = ldiv(a, b);
}
But I do not see reason why it behaves differently in different state.
Energy consumption? speed in which a (reset) capacitor loads/empties? (all assumptions)