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(* conststrarray.mod provides a test to access a constant array.
Copyright (C) 2020 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.
You should have received a copy of the GNU General Public License
along with GNU Modula-2; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. *)
MODULE conststrarray ;
FROM libc IMPORT exit, printf ;
FROM SYSTEM IMPORT SIZE, ADR ;
TYPE
array = ARRAY [0..26] OF CHAR ;
CONST
str = array { "A", "B", "C", "D", "E", "F", "G", "H",
"I", "J", "K", "L", "M", "N", "O", "P",
"Q", "R", "S", "T", "U", "V", "W", "X",
"Y", "Z" } ;
PROCEDURE assert (b: BOOLEAN; file: ARRAY OF CHAR; line: CARDINAL) ;
BEGIN
IF NOT b
THEN
printf ("%s:%d:assert failed\n", ADR (file), line) ;
r := 1
END
END assert ;
VAR
s: array ;
c: CARDINAL ;
r: INTEGER ;
BEGIN
r := 0 ;
s := "ABCDEFGHIJKLMNOPQRSTUVWXYZ" ;
FOR c := 0 TO 25 DO
printf ("c = %d, s[c] = %c, str[c] = %c, %c\n", c, s[c], str[c], CHR (ORD ('A')+c)) ;
assert (s[c] = CHR (ORD ('A')+c), __FILE__, __LINE__) ;
assert (s[c] = str[c], __FILE__, __LINE__)
END ;
exit (r)
END conststrarray.
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