!!$ 
!!$              Parallel Sparse BLAS  v2.0
!!$    (C) Copyright 2006 Salvatore Filippone    University of Rome Tor Vergata
!!$                       Alfredo Buttari        University of Rome Tor Vergata
!!$ 
!!$  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
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!!$ 
!!$  
! File:  psb_ztransp.f90 
! Subroutine: 
! Parameters:

subroutine psb_ztransp(a,b,c,fmt)
  use psb_spmat_type
  use psb_tools_mod
  use psb_string_mod
  use psb_realloc_mod
  use psb_serial_mod, only : psb_ipcoo2csr, psb_ipcsr2coo, psb_fixcoo, psb_csdp
  implicit none

  type(psb_zspmat_type)      :: a,b
  integer, optional          :: c
  character(len=*), optional :: fmt

  character(len=5)           :: fmt_
  integer                    :: c_, info, nz 
  integer, allocatable       :: itmp(:)
  type(psb_zspmat_type)      :: tmp

  if (present(c)) then 
    c_=c
  else
    c_=1
  endif
  if (present(fmt)) then 
    fmt_ = toupper(fmt)
  else 
    fmt_='CSR'
  endif

  if (.true.) then 
    if (allocated(b%aspk)) call psb_sp_free(b,info)
    b%fida   = 'COO'
    b%descra = 'GUN'
    call psb_csdp(a,b,info)
!!$    write(0,*) 'Check from CSDP',b%m,b%k,b%fida,b%descra,b%infoa(psb_nnz_)
    if (info /= 0) then 
      write(0,*) 'transp: info from CSDP ',info
      return
    end if
  else
    if (allocated(b%aspk)) call psb_sp_free(b,info)
    call psb_sp_clone(a,b,info)
    
    if (b%fida=='CSR') then 
      call psb_ipcsr2coo(b,info)
    else if (b%fida=='COO') then 
      ! do nothing 
    else
      write(0,*) 'Unimplemented case in TRANSP '
    endif
  endif

  call psb_transfer(b%ia1,itmp,info)
  call psb_transfer(b%ia2,b%ia1,info)
  call psb_transfer(itmp,b%ia2,info)

  b%m = a%k 
  b%k = a%m

  if (fmt_=='CSR') then 
    call psb_ipcoo2csr(b,info)
    b%fida='CSR'
  else if (fmt_=='COO') then 
    call psb_fixcoo(b,info)
    b%fida='COO'
  else
    call psb_nullify_sp(tmp)
    call psb_sp_clone(b,tmp,info)
    b%fida=fmt_
    call psb_csdp(tmp,b,info)
    !!!!!! ADD HERE ERRPUSH!!! 
    call psb_sp_free(tmp,info)

  endif

  return
end subroutine psb_ztransp