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
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
(* SWholeIO.mod implement the ISO SWholeIO specification.
Copyright (C) 2009-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. *)
IMPLEMENTATION MODULE SWholeIO;
IMPORT StdChans, WholeIO ;
(* Input and output of whole numbers in decimal text form over
default channels. The read result is of the type
IOConsts.ReadResults.
*)
PROCEDURE ReadInt (VAR int: INTEGER);
(* Skips leading spaces, and removes any remaining characters
from the default input stream that form part of a signed
whole number. The value of this number is assigned to int.
The read result is set to the value allRight, outOfRange,
wrongFormat, endOfLine, or endOfInput.
*)
BEGIN
WholeIO.ReadInt(StdChans.StdInChan(), int)
END ReadInt ;
PROCEDURE ReadCard (VAR card: CARDINAL);
(* Skips leading spaces, and removes any remaining characters
from the default input stream that form part of an unsigned
whole number. The value of this number is assigned to card.
The read result is set to the value allRight, outOfRange,
wrongFormat, endOfLine, or endOfInput.
*)
BEGIN
WholeIO.ReadCard(StdChans.StdInChan(), card)
END ReadCard ;
(* Output procedures *)
PROCEDURE WriteInt (int: INTEGER; width: CARDINAL);
(* Writes the value of int to the default output stream in
text form, in a field of the given minimum width. *)
BEGIN
WholeIO.WriteInt(StdChans.StdOutChan(), int, width)
END WriteInt ;
PROCEDURE WriteCard (card: CARDINAL; width: CARDINAL);
(* Writes the value of card to the default output stream in
text form, in a field of the given minimum width. *)
BEGIN
WholeIO.WriteCard(StdChans.StdOutChan(), card, width)
END WriteCard ;
END SWholeIO.
|
