!                Parallel Sparse BLAS   GPU plugin 
!      (C) Copyright 2013
!  
!                         Salvatore Filippone
!                         Alessandro Fanfarillo
!   
!    Redistribution and use in source and binary forms, with or without
!    modification, are permitted provided that the following conditions
!    are met:
!      1. Redistributions of source code must retain the above copyright
!         notice, this list of conditions and the following disclaimer.
!      2. Redistributions in binary form must reproduce the above copyright
!         notice, this list of conditions, and the following disclaimer in the
!         documentation and/or other materials provided with the distribution.
!      3. The name of the PSBLAS group or the names of its contributors may
!         not be used to endorse or promote products derived from this
!         software without specific written permission.
!   
!    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
!    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
!    TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
!    PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
!    BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
!    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
!    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
!    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
!    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
!    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!    POSSIBILITY OF SUCH DAMAGE.
!   
  

subroutine  psb_s_elg_trim(a)
  
  use psb_base_mod
  use psb_s_elg_mat_mod, psb_protect_name => psb_s_elg_trim
  implicit none 
  class(psb_s_elg_sparse_mat), intent(inout) :: a
  Integer(psb_ipk_)  :: err_act, info, nz, m, nzm,ld
  character(len=20)  :: name='trim'
  logical, parameter :: debug=.false.

  call psb_erractionsave(err_act)
  info = psb_success_
  m    = max(1_psb_ipk_,a%get_nrows())
  ld   = max(1_psb_ipk_,size(a%ja,1))
  nzm  = max(1_psb_ipk_,maxval(a%irn(1:m)))
  
  call psb_realloc(m,a%irn,info)
  if (info == psb_success_) call psb_realloc(m,a%idiag,info)
  if (info == psb_success_) call psb_realloc(ld,nzm,a%ja,info)
  if (info == psb_success_) call psb_realloc(ld,nzm,a%val,info)

  if (info /= psb_success_) goto 9999 
  call psb_erractionrestore(err_act)
  return

9999 call psb_error_handler(err_act)

  return

end subroutine psb_s_elg_trim