#include<stdio.h>
int array[]={1,2,3,4,5,6,7,8};
#define SIZE (sizeof(array)/sizeof(int))
int main()
{
printf("%d",SIZE);
if(-1<=SIZE) printf("1");
else printf("2");
return 0;
}how is SIZE casted in this example? Because the compiler believes -1 > SIZE (which is 8). Is this because it was treated as unsigned char and -1 looped around to become 255?
Yes, sizeof() evaluates to an unsigned number.
#define is a compiler directive and it is used to make substitutions throughout the file in which it is located.
So, a symbol SIZE is replace with (sizeof(array)/sizeof(int))
>how is SIZE casted in this example?
When you compare an unsigned int and a signed int in this
way,the signed int will be converted to unsigned int. Converting
a negative signed int to a unsigned int is done by adding 1 to max_range_value.
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