!
!     CalculiX - A 3-dimensional finite element program
!              Copyright (C) 1998-2007 Guido Dhondt
!
!     This program 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(version 2);
!     
!
!     This program 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 this program; if not, write to the Free Software
!     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
!
      subroutine fluidconstants(inpc,textpart,shcon,nshcon,
     &  nmat,ntmat_,irstrt,istep,istat,n,iline,ipol,inl,ipoinp,
     &  inp,ipoinpc)
!
!     reading the input deck: *FLUID CONSTANTS
!
      implicit none
!
      character*1 inpc(*)
      character*132 textpart(16)
!
      integer nshcon(*),nmat,ntmat,ntmat_,istep,istat,n,ipoinpc(0:*),
     &  key,irstrt,iline,ipol,inl,ipoinp(2,*),inp(3,*)
!
      real*8 shcon(0:3,ntmat_,*)
!
      ntmat=0
!
      if((istep.gt.0).and.(irstrt.ge.0)) then
         write(*,*)
     &     '*ERROR in fluidconstants: *FLUID CONSTANTS should be'
         write(*,*) '  placed before all step definitions'
         stop
      endif
!
      if(nmat.eq.0) then
         write(*,*)
     &      '*ERROR in fluidconstants: *FLUID CONSTANTS should be'
         write(*,*) '  preceded by a *MATERIAL card'
         stop
      endif
!
      do
         call getnewline(inpc,textpart,istat,n,key,iline,ipol,inl,
     &        ipoinp,inp,ipoinpc)
         if((istat.lt.0).or.(key.eq.1)) return
         ntmat=ntmat+1
         nshcon(nmat)=ntmat
         if(ntmat.gt.ntmat_) then
            write(*,*) '*ERROR in fluidconstants: increase ntmat_'
            stop
         endif
         read(textpart(1)(1:20),'(f20.0)',iostat=istat) 
     &        shcon(1,ntmat,nmat)
         if(istat.gt.0) call inputerror(inpc,ipoinpc,iline)
         read(textpart(2)(1:20),'(f20.0)',iostat=istat) 
     &        shcon(2,ntmat,nmat)
         if(istat.gt.0) call inputerror(inpc,ipoinpc,iline)
         read(textpart(3)(1:20),'(f20.0)',iostat=istat) 
     &        shcon(0,ntmat,nmat)
         if(istat.gt.0) call inputerror(inpc,ipoinpc,iline)
      enddo
!
      return
      end