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C
C Copyright (c) 1995 Eric Gourgoulhon
C
C This file is part of LORENE.
C
C LORENE is free software; you can redistribute it and/or modify
C it under the terms of the GNU General Public License as published by
C the Free Software Foundation; either version 2 of the License, or
C (at your option) any later version.
C
C LORENE is distributed in the hope that it will be useful,
C but WITHOUT ANY WARRANTY; without even the implied warranty of
C MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
C GNU General Public License for more details.
C
C You should have received a copy of the GNU General Public License
C along with LORENE; if not, write to the Free Software
C Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
C
C
C
C $Id: huntm.f,v 1.2 2012/03/30 12:12:42 j_novak Exp $
C $Log: huntm.f,v $
C Revision 1.2 2012/03/30 12:12:42 j_novak
C Cleaning of fortran files
C
C Revision 1.1.1.1 2001/11/20 15:19:30 e_gourgoulhon
C LORENE
C
c Revision 1.1 2000/11/28 13:53:50 nbib
c Initial revision
c
C
C $Header: /cvsroot/Lorene/F77/Source/huntm.f,v 1.2 2012/03/30 12:12:42 j_novak Exp $
C
C
SUBROUTINE HUNTM(XX,N,X,JLO)
C version du 19.06.1995
C d'apres la routine HUNT de Numerical Recepies.
C******************************************************************************
IMPLICIT double PRECISION (A-H,O-Z)
character*120 header
data header/'$Header: /cvsroot/Lorene/F77/Source/huntm.f,v 1.2 2012/03/30 12:12:42 j_novak Exp $'/
DIMENSION XX(N)
LOGICAL ASCND
ASCND=XX(N).GT.XX(1)
IF(JLO.LE.0.OR.JLO.GT.N)THEN
JLO=0
JHI=N+1
GO TO 3
ENDIF
INC=1
IF(X.GE.XX(JLO).EQV.ASCND)THEN
1 JHI=JLO+INC
IF(JHI.GT.N)THEN
JHI=N+1
ELSE IF(X.GE.XX(JHI).EQV.ASCND)THEN
JLO=JHI
INC=INC+INC
GO TO 1
ENDIF
ELSE
JHI=JLO
2 JLO=JHI-INC
IF(JLO.LT.1)THEN
JLO=0
ELSE IF(X.LT.XX(JLO).EQV.ASCND)THEN
JHI=JLO
INC=INC+INC
GO TO 2
ENDIF
ENDIF
3 IF(JHI-JLO.EQ.1)RETURN
JM=(JHI+JLO)/2
IF(X.GT.XX(JM).EQV.ASCND)THEN
JLO=JM
ELSE
JHI=JM
ENDIF
GO TO 3
END
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