What do 0LL or 0x0UL mean?

Question

I am reading the Google Go tutorial and saw this in the constants section:

There are no constants like 0LL or 0x0UL

I tried to d

Answer 1

LL designates a literal as a long long and UL designates one as unsigned long and 0x0 is hexadecimal for 0. So 0LL and 0x0UL are an equivalent number but different datatypes; the former is a long long and the latter is an unsigned long.

There are many of these specifiers:

1F // float
1L // long
1ull // unsigned long long
1.0 // double