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psblas3/test/Fileread/lowerc.f

50 lines
2.3 KiB
Fortran

C
C Parallel Sparse BLAS v2.0
C (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
C Alfredo Buttari University of Rome Tor Vergata
C
C Redistribution and use in source and binary forms, with or without
C modification, are permitted provided that the following conditions
C are met:
C 1. Redistributions of source code must retain the above copyright
C notice, this list of conditions and the following disclaimer.
C 2. Redistributions in binary form must reproduce the above copyright
C notice, this list of conditions, and the following disclaimer in the
C documentation and/or other materials provided with the distribution.
C 3. The name of the PSBLAS group or the names of its contributors may
C not be used to endorse or promote products derived from this
C software without specific written permission.
C
C THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
C ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
C TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
C PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
C BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
C CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
C SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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C CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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C POSSIBILITY OF SUCH DAMAGE.
C
C
subroutine lowerc(string,pos,len)
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
c Convert uppercase letters to lowercase letters in string with
c starting postion pos and length len.
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
integer pos, len
character*(*) string
character*26 lcase, ucase
save lcase,ucase
data lcase/'abcdefghijklmnopqrstuvwxyz'/
data ucase/'ABCDEFGHIJKLMNOPQRSTUVWXYZ'/
do i=pos,len
k = index(ucase,string(i:i))
if (k.ne.0) string(i:i) = lcase(k:k)
enddo
return
end