[MLton] mlton bug [String.fromCString ?]

[Stephen Weeks]

> fun fetchCString ptr =
>     let
>        fun loop (i, accum) =
>  	 let
>  	    val w = MLton.Pointer.getWord8 (ptr, i)
>  	 in
>              (* Search for explicit null termination. *)
>  	    if w = 0wx0
>  	       then String.implode (List.rev accum)
>  	       else loop (i + 1, (Byte.byteToChar w) :: accum)
>  	 end
>     in
>        loop (0, [])
>     end

A minor point, but this can be done more efficiently with

----------------------------------------------------------------------
fun strlen p =
   let
      fun loop i =
         if 0w0 = MLton.Pointer.getWord8 (p, i) then i else loop (i + 1)
   in
      loop 0
   end

fun fetchCString p =
   CharVector.tabulate (strlen p, fn i =>
                        Byte.byteToChar (MLton.Pointer.getWord8 (p, i)))
----------------------------------------------------------------------

> Also, funnyly, mlton rejects file names.sml on Solaris, in which it
> finds a syntax error ...
>
> I'm working with mlton-20041109.

This is not a Solaris issue; rather it is a mlton-20041109 issue.  See

  http://mlton.org/Bugs20041109#7

You must be using a newer version than 20041109 to get your program to
compile.