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checktype.f90
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checktype.f90
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
! CARACAL - Ring polymer molecular dynamics and rate constant calculations
! on black-box generated potential energy surfaces
!
! Copyright (c) 2023 by Julien Steffen ([email protected])
! Stefan Grimme ([email protected]) (QMDFF code)
!
! Permission is hereby granted, free of charge, to any person obtaining a
! copy of this software and associated documentation files (the "Software"),
! to deal in the Software without restriction, including without limitation
! the rights to use, copy, modify, merge, publish, distribute, sublicense,
! and/or sell copies of the Software, and to permit persons to whom the
! Software is furnished to do so, subject to the following conditions:
!
! The above copyright notice and this permission notice shall be included in
! all copies or substantial portions of the Software.
!
! THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
! IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
! FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
! THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
! LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
! FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
! DEALINGS IN THE SOFTWARE.
!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
! subroutine checktype: this checks the type of the string and
! returns it cast to real or as string.
!
! part of QMDFF
!
subroutine checktype(field,num,str,ty)
implicit none
character(len=128)::field,str
real(kind=8)::num
integer::i,e,ty
logical::is_num
ty=99
str=''
is_num=.false.
!
! cast string on real and get error code; 0 means success.
!
read(field,'(F10.5)',IOSTAT=e) num
if(e.eq.0)is_num=.true.
if (is_num) then
!
! check for integer/real
!
if (index(field,'.').ne.0) then
read(field,'(F20.10)')num
ty=0
!
! if integer, add .0 to string; otherwise cast to real does not work
!
else
str=trim(field)//'.0'
read(str,'(F20.10)')num
str=''
ty=0
end if
else
str=field
ty=1
end if
return
end subroutine checktype