!   
!                Parallel Sparse BLAS  version 3.5
!      (C) Copyright 2006-2018
!        Salvatore Filippone    
!        Alfredo Buttari      
!   
!    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.
!   
!    
! File: psb_csprn.f90
!
! Subroutine: psb_csprn
!    Reinit sparse matrix structure for psblas routines: on output the matrix 
!    is in the update state.
! 
! Arguments: 
!    a        - type(psb_cspmat_type).        The sparse matrix to be reinitiated.      
!    desc_a   - type(psb_desc_type).          The communication descriptor.
!    info     - integer.                        Return code.
!    clear    - logical, optional               Whether the coefficients should be zeroed
!                                               default .true.          
!
Subroutine psb_csprn(a, desc_a,info,clear)
  use psb_base_mod, psb_protect_name => psb_csprn
  Implicit None

  !....Parameters...
  Type(psb_desc_type), intent(in)      :: desc_a
  Type(psb_cspmat_type), intent(inout) :: a
  integer(psb_ipk_), intent(out)                 :: info
  logical, intent(in), optional        :: clear

  !locals
  type(psb_ctxt_type) :: ictxt
  integer(psb_ipk_) :: np,me,err_act
  integer(psb_ipk_) :: debug_level, debug_unit
  character(len=20)   :: name
  logical             :: clear_

  info = psb_success_
  name = 'psb_csprn'
  call psb_erractionsave(err_act)
  debug_unit  = psb_get_debug_unit()
  debug_level = psb_get_debug_level()

  ictxt = desc_a%get_context()
  call psb_info(ictxt, me, np)
  if (debug_level >= psb_debug_outer_) &
       & write(debug_unit,*) me,' ',trim(name),': start '

  if (psb_is_bld_desc(desc_a)) then
    ! Should do nothing, we are called redundantly
    return
  endif
  if (.not.psb_is_asb_desc(desc_a)) then
    info=590     
    call psb_errpush(info,name)
    goto 9999
  endif

  call a%reinit(clear=clear)

  if (info /= psb_success_) goto 9999
  if (debug_level >= psb_debug_outer_) &
       & write(debug_unit,*) me,' ',trim(name),': done'

  call psb_erractionrestore(err_act)
  return

9999 call psb_error_handler(ictxt,err_act)

  return

end subroutine psb_csprn