Re: Using the GNU GMP Library for Bignums in Emacs

[Paul Eggert]

Richard Stallman wrote:
> That means the feature would need to specify the number of hex digits
> desired.

We already have such a feature. For example, (format "%09x" 257) returns
"000000101", which is 257 hexadecimal, expressed using leading zeros as needed 
so that at least 9 digits are used. Once Emacs supports bignums, the same 
feature can print 40-hex-digit SHA-1 checksums by using (format "%040x" n).