Re: [Caml-list] Re: "ocaml_beginners"::[] string to list

[Issac Trotts <ijtrotts@ucdavis.edu>]

Christian Schaller wrote:

>Issac,
>
>Thanks a lot for this.  I am somewhat surprised, since this should be a
>built-in function.  Anyway, maybe you can help me with this one, too:  is
>there also a conversion from character to string or appending a character in
>front or at the end of a string?
>
>- Chris
>
Hi Chris,

Here's a way to make a string from a char:

# let c = 'a';;
val c : char = 'a'
# String.make 1 c;;
- : string = "a"

It's possible to prepend and append like this:

# (String.make 1 c) ^ "foo";;
- : string = "afoo"
# "foo" ^ (String.make 1 c);;
- : string = "fooa"

but it is probably more efficient to use the Buffer 
module (buffer.mli in /usr/lib/ocaml or 
/usr/local/lib/ocaml).

Issac







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