You can use a stream of chars for the content of a given file.
Or use a stream of blocks of chars for the content of a given file,
where each block is of size, say, 4096 bytes. For the start, using
a stream of chars is a good choice. Please stay away from the urge
to write "efficient" code at this
On Tue, Mar 12, 2019 at 12:23 PM Hongwei Xi wrote:
> Here is a quick fix:
> extern
> praxi
> clear{a:t0ype}(x: INV(a)): void
>
> fun open_close(): void =
> let
> val fptr = fopen("hello.dats", file_mode_r)
> val p = ptrcast(fptr)
> in
> if p = 0
> then
> let
> prval () =
Cool. I was looking in
http://ats-lang.github.io/DOCUMENT/ATS-Postiats/libats/libc/HTML/ATSLIB_libats_libc_all_in_one.html
(linked from http://www.ats-lang.org/Libraries.html) and FILEptr_is_null is
not there. But it is in
On Tue, Mar 12, 2019 at 12:23 PM Hongwei Xi wrote:
> Here is a quick fix:
> extern
> praxi
> clear{a:t0ype}(x: INV(a)): void
>
> fun open_close(): void =
> let
> val fptr = fopen("hello.dats", file_mode_r)
> val p = ptrcast(fptr)
> in
> if p = 0
> then
> let
> prval () =
FWIW, I personally would use
FILEptr_is_null to check if fptr is null, rather than ptrcast and then a
comparison to 0
On 3/12/19 2:22 PM, Hongwei Xi wrote:
> Here is a quick fix:
> extern
> praxi
> clear{a:t0ype}(x: INV(a)): void
>
> fun open_close(): void =
> let
> val fptr =
Here is a quick fix:
extern
praxi
clear{a:t0ype}(x: INV(a)): void
fun open_close(): void =
let
val fptr = fopen("hello.dats", file_mode_r)
val p = ptrcast(fptr)
in
if p = 0
then
let
prval () = FILEptr_free_null(fptr)
in
end
else
let
val
I wrote the following code
#include "share/atspre_define.hats"
#include "share/atspre_staload.hats"
staload "libats/libc/SATS/stdio.sats"
fun open_close(): void =
let
val fptr = fopen("hello.dats", file_mode_r)
val p = ptrcast(fptr)
in
if p = 0
then
let
prval () =
