1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
-- !!! Testing that #4827 is fixed (hPutArray/hGetArray use count argument)
module Main(main) where
import Control.Monad
import Data.Array.MArray
import Data.Array.IO
import System.IO
main :: IO ()
main = do
the_array <- newListArray (0, 11) [1..12]
-- Write out almost all of the array
h_out <- openBinaryFile "array001.data" WriteMode
hPutArray h_out the_array 11
hClose h_out
the_array <- newListArray (0, 11) [0 | i <- [1..12]]
-- Read in almost all of the array
h_in <- openBinaryFile "array001.data" ReadMode
wrote_size <- hFileSize h_in
hGetArray h_in the_array 10
hClose h_in
read_elems <- getElems the_array
print wrote_size -- Bytes written, should == 11
print read_elems -- Bytes read, should match written array in first 10 bytes, be 0 afterwards
|
