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133 lines
3.9 KiB
Fortran
133 lines
3.9 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS version 3.1
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!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012, 2013
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
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!!$ notice, this list of conditions and the following disclaimer.
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the PSBLAS group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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module psb_string_mod
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use psb_const_mod, only : psb_ipk_
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public psb_tolower, psb_toupper, psb_touppers
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interface psb_tolower
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module procedure psb_tolowerc
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end interface
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interface psb_toupper
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module procedure psb_toupperc
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end interface
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interface psb_touppers
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module procedure psb_sub_toupperc
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end interface
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private
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character(len=*), parameter :: lcase='abcdefghijklmnopqrstuvwxyz'
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character(len=*), parameter :: ucase='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
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contains
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function idx_bsrch(key,v) result(ipos)
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implicit none
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integer(psb_ipk_) :: ipos
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character key
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character(len=*) v
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integer(psb_ipk_) :: lb, ub, m
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lb = 1
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ub = len(v)
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ipos = 0
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do
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if (lb > ub) exit
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m = (lb+ub)/2
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if (key.eq.v(m:m)) then
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ipos = m
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exit
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else if (key.lt.v(m:m)) then
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ub = m-1
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else
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lb = m + 1
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end if
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enddo
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return
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end function idx_bsrch
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function psb_tolowerc(string)
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character(len=*), intent(in) :: string
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character(len=len(string)) :: psb_tolowerc
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integer(psb_ipk_) :: i,k
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do i=1,len(string)
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k = idx_bsrch(string(i:i),ucase)
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if (k /= 0) then
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psb_tolowerc(i:i) = lcase(k:k)
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else
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psb_tolowerc(i:i) = string(i:i)
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end if
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enddo
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end function psb_tolowerc
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function psb_toupperc(string)
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character(len=*), intent(in) :: string
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character(len=len(string)) :: psb_toupperc
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integer(psb_ipk_) :: i,k
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do i=1,len(string)
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k = idx_bsrch(string(i:i),lcase)
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if (k /= 0) then
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psb_toupperc(i:i) = ucase(k:k)
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else
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psb_toupperc(i:i) = string(i:i)
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end if
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enddo
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end function psb_toupperc
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subroutine psb_sub_toupperc(string,strout)
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character(len=*), intent(in) :: string
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character(len=*), intent(out) :: strout
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integer(psb_ipk_) :: i,k
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do i=1,len(string)
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k = idx_bsrch(string(i:i),lcase)
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if (k /= 0) then
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strout(i:i) = ucase(k:k)
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else
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strout(i:i) = string(i:i)
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end if
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enddo
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end subroutine psb_sub_toupperc
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end module psb_string_mod
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