| (* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. *) |
| (* 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 2, 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 gm2; see the file COPYING. If not, write to the Free Software |
| Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *) |
| MODULE nestedproc5 ; |
| |
| FROM StrIO IMPORT WriteString, WriteLn ; |
| FROM StrLib IMPORT StrCopy, StrLen ; |
| |
| PROCEDURE outer ; |
| VAR |
| a: ARRAY [0..80] OF CHAR ; |
| |
| PROCEDURE flip (i, j: CARDINAL) ; |
| VAR |
| t: CHAR ; |
| BEGIN |
| t := a[i] ; |
| a[i] := a[j] ; |
| a[j] := t |
| END flip ; |
| |
| PROCEDURE inner ; |
| VAR |
| h, l, k: CARDINAL ; |
| BEGIN |
| h := HIGH(a) ; (* test it.. *) |
| IF h#80 |
| THEN |
| HALT |
| END ; |
| k := 0 ; |
| l := StrLen(a)-1 ; |
| flip(3, 8) |
| END inner ; |
| BEGIN |
| StrCopy('0128456739', a) ; |
| inner ; |
| WriteString(a) ; WriteLn |
| END outer ; |
| |
| |
| BEGIN |
| outer |
| END nestedproc5. |