String-Skip!

(string-skip! string integer) -> null

Skips a number of bytes equal to integer in the given string.

Example:

>> (define a "abcdefghijklmnopqrstuvwxyz")
:: "abcdefghijklmnopqrstuvwxyz"
>> (string-skip! a 13)
:: null
>> a
:: "nopqrstuvwxyz"