refer to hi.c in the previous post
type casting: convert characters to the ASCII number value that represents those characters
#include <stdio.h>
int main(void)
{
char c1='H';
char c2='i';
char c3='!';
printf("i% i% i%\n", (int) c1, (int) c2, (int) c3);
}
in reality, clang is actually smart enough that even if you don't explicitly cast the chars to ints, it will know that the casting needs to occur and implicitly cast the chars to ints automatically
#include <stdio.h>
int main(void)
{
char c1='H';
char c2='i';
char c3='!';
printf("i% i% i%\n", (int) c1, (int) c2, (int) c3);
}
source: cs50, lec2
