source: palm/trunk/SOURCE/local_getenv.f90 @ 1320

Last change on this file since 1320 was 1320, checked in by raasch, 7 years ago

ONLY-attribute added to USE-statements,
kind-parameters added to all INTEGER and REAL declaration statements,
kinds are defined in new module kinds,
old module precision_kind is removed,
revision history before 2012 removed,
comment fields (!:) to be used for variable explanations added to all variable declaration statements

  • Property svn:keywords set to Id
File size: 2.4 KB
Line 
1 SUBROUTINE local_getenv( var, ivar, value, ivalue )
2
3!--------------------------------------------------------------------------------!
4! This file is part of PALM.
5!
6! PALM is free software: you can redistribute it and/or modify it under the terms
7! of the GNU General Public License as published by the Free Software Foundation,
8! either version 3 of the License, or (at your option) any later version.
9!
10! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12! A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
13!
14! You should have received a copy of the GNU General Public License along with
15! PALM. If not, see <http://www.gnu.org/licenses/>.
16!
17! Copyright 1997-2014 Leibniz Universitaet Hannover
18!--------------------------------------------------------------------------------!
19!
20! Current revisions:
21! -----------------
22! ONLY-attribute added to USE-statements,
23! kind-parameters added to all INTEGER and REAL declaration statements,
24! kinds are defined in new module kinds,
25! revision history before 2012 removed,
26! comment fields (!:) to be used for variable explanations added to
27! all variable declaration statements
28!
29! Former revisions:
30! -----------------
31! $Id: local_getenv.f90 1320 2014-03-20 08:40:49Z raasch $
32!
33! 1036 2012-10-22 13:43:42Z raasch
34! code put under GPL (PALM 3.9)
35!
36! Revision 1.1  1997/08/11 06:21:01  raasch
37! Initial revision
38!
39!
40! Description:
41! ------------
42! Getting the values of environment-variabls (for different operating-systems)
43!------------------------------------------------------------------------------!
44
45    USE kinds
46       
47#if defined( __lcmuk )
48    USE pegrid
49#endif
50    CHARACTER (LEN=*) ::  value  !:
51    CHARACTER (LEN=*) ::  var    !:
52   
53    INTEGER(iwp)      ::  ivalue !:
54    INTEGER(iwp)      ::  ivar   !:
55#if defined( __lcmuk )
56    INTEGER(iwp)      ::  i      !:
57    INTEGER(iwp)      ::  ia(20) !:
58#endif
59
60    CALL GETENV( var(1:ivar), value )
61    ivalue = LEN_TRIM( value )
62
63#if defined( __lcmuk )  &&  defined( __parallel )
64    ia = IACHAR( ' ' )
65    IF ( myid == 0 )  THEN
66       DO  i = 1, ivalue
67          ia(i) = IACHAR( value(i:i) )
68       ENDDO
69    ENDIF
70    CALL MPI_BCAST( ia(1), 20, MPI_INTEGER, 0, comm2d, ierr )
71    DO  i = 1, 20
72       IF ( ACHAR( ia(i) ) /= ' ' )  value(i:i) = ACHAR( ia(i) )
73    ENDDO
74    ivalue = LEN_TRIM( value )
75#endif
76 END SUBROUTINE local_getenv   
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