The capacity is the size of the memory allocated, the length is the number of
`char` that are not 0x00 .
Basically :
a.len() # Maximum number of char you can write in the string memory
a.cstring.len() # Number of char before the first char(0) character
Run
That is because C consider the string to end at the first null character while
Nim doesn't have this limitation.
Since you allocated a string that is bigger than what C write you end up with a
Nim string with a lot of trailing char(0) that you need to remove.
Which is why we do :
mystring = $(mystring.cstring) # My solution
setLen(mystring, mystring.cstring.len) # PMunch's solution, that is
(arguably) cleaner
Run
