gistfile1.txt

kly@leia:~$ cat foo.c
#include <stdio.h>
#include <limits.h>

int main() {
        int si = INT_MAX;
        unsigned int ui = UINT_MAX;
        printf ("si: %d (INT_MAX)\n", si);
        printf ("ui: %u (UINT_MAX)\n", ui);
        if (si > si + 1)
                printf("si larger than si + 1\n");
        else
                printf("si not larger than si + 1\n");

        if (ui > ui + 1)
                printf("ui larger than ui + 1\n");
        else
                printf("ui not larger than ui + 1\n");

	return 0;
}
kly@leia:~$ gcc foo.c -O2 -o test-O2
kly@leia:~$ gcc foo.c -O0 -o test-O0
kly@leia:~$ ./test-O0
si: 2147483647 (INT_MAX)
ui: 4294967295 (UINT_MAX)
si larger than si + 1
ui larger than ui + 1
kly@leia:~$ ./test-O2
si: 2147483647 (INT_MAX)
ui: 4294967295 (UINT_MAX)
si not larger than si + 1
ui larger than ui + 1