utils.f90 3.73 KB
 Luca committed Apr 02, 2019 1 2 3 `````` ! Contains some functions that might be useful later `````` Luca committed Apr 03, 2019 4 5 6 7 8 9 ``````! Write your own print function with ability to suppress print ! Muss immer alle prints und warnings ausschalten können ! Test Programm schreiben mit exit codes -> gfortran 'test.f90' und dann 'echo \$?' ! Define GPL infinity ! Mach n optional ! Kommentar schreiben zu anderer Notation `````` Luca committed Apr 03, 2019 10 ``````! Funktion überprüfen! Tests schreiben! `````` Luca committed Apr 03, 2019 11 `````` `````` Luca committed Apr 02, 2019 12 13 14 ``````MODULE utils implicit none `````` Luca committed Apr 03, 2019 15 16 `````` logical :: print_enabled = .true. logical :: warnings_enabled = .true. `````` Luca committed Apr 25, 2019 17 `````` integer, parameter :: prec = selected_real_kind(15,32) `````` Luca committed Apr 03, 2019 18 `````` `````` Luca committed Apr 02, 2019 19 ``````CONTAINS `````` Luca committed Apr 25, 2019 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 `````` FUNCTION get_condensed_m(z) result(m) ! returns condensed m where the ones not needed are filled with 0 complex(kind=prec) :: z(:), m(size(z)) integer :: pos = 1, i m = 1 do i = 1,size(z) if(z(i) == 0) then if(i == size(z)) then pos = pos + 1 else m(pos) = m(pos) + 1 end if else pos = pos + 1 end if end do m(pos:) = 0 END FUNCTION get_condensed_m FUNCTION get_condenced_z(m, z_in) result(z_out) ! returns condensed z vector integer :: m(:), i, pos complex(kind=prec) :: z_in(:), z_out(size(m)) pos = 0 do i=1,size(m) pos = pos + m(i) z_out(i) = z_in(pos) end do END FUNCTION get_condenced_z FUNCTION get_flattened_z(m,z_in) result(z_out) ! returns flattened version of z based on m and z integer :: m(:), i, pos complex(kind=prec) :: z_in(:), z_out(sum(m)) z_out = 0 pos = 0 do i=1,size(m) pos = pos + m(i) z_out(pos) = z_in(i) end do END FUNCTION get_flattened_z FUNCTION find_first_zero(v) result(res) ! returns index of first zero, or -1 if there is no zero integer :: v(:), i, res res = -1 do i = 1,size(v) if(v(i) == 0) then res = i return end if end do END FUNCTION find_first_zero SUBROUTINE print_as_matrix(m) ! prints a 2d array as a matrix complex :: m(:,:) integer :: s(2), i s = shape(m) do i = 1,s(1) print*, m(i,:) end do END SUBROUTINE print_as_matrix FUNCTION shuffle_with_zero(a) result(res) ! rows of result are shuffles of a with 0 complex :: a(:) complex :: res(size(a)+1,size(a)+1) integer :: i,j, N N = size(a)+1 do i = 1,N ! i is the index of the row ! j is the index of the zero j = N+1-i res(i,j) = 0 res(i,1:j-1) = a(1:j-1) res(i,j+1:N) = a(j:) end do END FUNCTION shuffle_with_zero ! subroutine print(s1,s2,s3,s4,s5) ! character(len = *), intent(in), optional :: s1, s2, s3, s4, s5 ! if(print_enabled) then ! print*, s1, s2, s3, s4, s5 ! end if ! end subroutine print ! subroutine warn(s1,s2,s3,s4,s5) ! character(len = *), intent(in), optional :: s1, s2, s3, s4, s5 ! if(warnings_enabled) then ! print*, 'Warning: ', s1, s2, s3, s4, s5 ! end if ! end subroutine warn `````` Luca committed Apr 02, 2019 114 115 116 `````` END MODULE utils `````` Luca committed Apr 25, 2019 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 ``````! PROGRAM test ! use utils ! implicit none ! complex(kind=prec), dimension(3) :: a = cmplx((/1,2,3/)) ! complex(kind=prec) :: z_flat(7) ! complex(kind=prec), allocatable :: z(:) ! integer :: m_prime(7), condensed_size ! integer, allocatable :: m(:) ! complex(kind=prec) :: b(size(a)+1,size(a)+1) ! ! ! test shuffling ! ! b = 1 ! ! b = shuffle_with_zero(a) ! ! call print_as_matrix(b) ! ! ! test condensing ! ! z_flat = cmplx((/0,0,0,2,1,0,1/)) ! ! m_prime = get_condensed_m(z_flat) ! ! condensed_size = find_first_zero(m_prime)-1 ! ! allocate(m(condensed_size)) ! ! allocate(z(condensed_size)) ! ! m = m_prime(1:condensed_size) ! ! z = get_condenced_z(m,z_flat) ! ! z_flat = get_flattened_z(m,z) ! ! print*, z_flat ! ! print*, m ! ! deallocate(m) ! ! deallocate(z) ! END PROGRAM test ``````