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https://github.com/QuantumPackage/qp2.git
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Anthony Scemama
5b6ecfa564
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74 lines
2.1 KiB
Fortran
74 lines
2.1 KiB
Fortran
subroutine format_w_error(value,error,size_nb,max_nb_digits,format_value,str_error)
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implicit none
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BEGIN_DOC
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! Format for double precision, value(error)
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END_DOC
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! in
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! | value | double precision | value... |
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! | error | double precision | error... |
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! | size_nb | integer | X in FX.Y |
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! | max_nb_digits | integer | Max Y in FX.Y |
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! out
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! | format_value | character | string FX.Y for the format |
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! | str_error | character | string of the error |
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! internal
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! | str_size | character | size in string format |
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! | nb_digits | integer | number of digits Y in FX.Y depending of the error |
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! | str_nb_digits | character | nb_digits in string format |
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! | str_exp | character | string of the value in exponential format |
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! in
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double precision, intent(in) :: error, value
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integer, intent(in) :: size_nb, max_nb_digits
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! out
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character(len=20), intent(out) :: str_error, format_value
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! internal
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character(len=20) :: str_size, str_nb_digits, str_exp
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integer :: nb_digits
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call lock_io()
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! max_nb_digit: Y max
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! size_nb = Size of the double: X (FX.Y)
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write(str_size,'(I3)') size_nb
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! Error
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write(str_exp,'(1pE20.0)') error
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str_error = trim(adjustl(str_exp))
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! Number of digit: Y (FX.Y) from the exponent
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str_nb_digits = str_exp(19:20)
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read(str_nb_digits,*) nb_digits
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! If the error is 0d0
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if (error <= 1d-16) then
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write(str_nb_digits,*) max_nb_digits
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endif
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! If the error is too small
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if (nb_digits > max_nb_digits) then
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write(str_nb_digits,*) max_nb_digits
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str_error(1:1) = '0'
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endif
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! If the error is too big (>= 0.5)
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if (error >= 0.5d0) then
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str_nb_digits = '1'
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str_error(1:1) = '*'
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endif
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! FX.Y,A1,A1,A1 for value(str_error)
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!string = 'F'//trim(adjustl(str_size))//'.'//trim(adjustl(str_nb_digits))//',A1,A1,A1'
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! FX.Y just for the value
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format_value = 'F'//trim(adjustl(str_size))//'.'//trim(adjustl(str_nb_digits))
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call unlock_io()
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end
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