sds max_s = sdsfromlonglong(LLONG_MAX);
    printf("LLONG_MAX: %lld\n", LLONG_MAX);
    printf("LLONG_MAX to sds: %s\n", max_s);

    sds min_s = sdsfromlonglong(LLONG_MIN);
    printf("LLONG_MIN: %lld\n", LLONG_MIN);
    printf("LLONG_MIN to sds: %s\n", min_s);

    unsigned long long v;
    v = -LLONG_MIN;
    printf("-LLONG_MIN %llu\n", v);

LLONG_MAX: 9223372036854775807
LLONG_MAX to sds: 9223372036854775807
LLONG_MIN: -9223372036854775808
LLONG_MIN to sds: -9223372036854775808
-LLONG_MIN 9223372036854775808

warning: integer overflow in expression ‘-9223372036854775808’ of type ‘long long int’ results in ‘-9223372036854775808’ [-Woverflow]

unsigned long long v;
v = -LLONG_MIN