[1765] | 1 | MODULE swap_m |
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| 2 | |
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| 3 | IMPLICIT NONE |
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| 4 | |
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| 5 | INTERFACE swap |
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| 6 | MODULE PROCEDURE swap_i,swap_r,swap_rv,swap_c, & |
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| 7 | swap_cv,swap_cm,swap_z,swap_zv,swap_zm, & |
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| 8 | masked_swap_rs,masked_swap_rv,masked_swap_rm |
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| 9 | END INTERFACE |
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| 10 | |
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| 11 | private |
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| 12 | public swap |
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| 13 | |
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| 14 | CONTAINS |
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| 15 | |
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| 16 | SUBROUTINE swap_i(a,b) |
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| 17 | INTEGER, INTENT(INOUT) :: a,b |
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| 18 | INTEGER :: dum |
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| 19 | dum=a |
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| 20 | a=b |
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| 21 | b=dum |
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| 22 | END SUBROUTINE swap_i |
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| 23 | |
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| 24 | !************************************************ |
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| 25 | |
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| 26 | SUBROUTINE swap_r(a,b) |
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| 27 | REAL, INTENT(INOUT) :: a,b |
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| 28 | REAL :: dum |
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| 29 | dum=a |
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| 30 | a=b |
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| 31 | b=dum |
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| 32 | END SUBROUTINE swap_r |
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| 33 | |
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| 34 | !************************************************ |
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| 35 | |
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| 36 | SUBROUTINE swap_rv(a,b) |
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| 37 | REAL, DIMENSION(:), INTENT(INOUT) :: a,b |
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| 38 | REAL, DIMENSION(SIZE(a)) :: dum |
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| 39 | dum=a |
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| 40 | a=b |
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| 41 | b=dum |
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| 42 | END SUBROUTINE swap_rv |
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| 43 | |
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| 44 | !************************************************ |
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| 45 | |
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| 46 | SUBROUTINE swap_c(a,b) |
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| 47 | COMPLEX, INTENT(INOUT) :: a,b |
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| 48 | COMPLEX :: dum |
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| 49 | dum=a |
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| 50 | a=b |
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| 51 | b=dum |
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| 52 | END SUBROUTINE swap_c |
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| 53 | |
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| 54 | !************************************************ |
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| 55 | |
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| 56 | SUBROUTINE swap_cv(a,b) |
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| 57 | COMPLEX, DIMENSION(:), INTENT(INOUT) :: a,b |
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| 58 | COMPLEX, DIMENSION(SIZE(a)) :: dum |
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| 59 | dum=a |
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| 60 | a=b |
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| 61 | b=dum |
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| 62 | END SUBROUTINE swap_cv |
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| 63 | |
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| 64 | !************************************************ |
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| 65 | |
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| 66 | SUBROUTINE swap_cm(a,b) |
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| 67 | COMPLEX, DIMENSION(:,:), INTENT(INOUT) :: a,b |
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| 68 | COMPLEX, DIMENSION(size(a,1),size(a,2)) :: dum |
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| 69 | dum=a |
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| 70 | a=b |
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| 71 | b=dum |
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| 72 | END SUBROUTINE swap_cm |
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| 73 | |
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| 74 | !************************************************ |
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| 75 | |
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| 76 | SUBROUTINE swap_z(a,b) |
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| 77 | COMPLEX(KIND(0D0)), INTENT(INOUT) :: a,b |
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| 78 | COMPLEX(KIND(0D0)) :: dum |
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| 79 | dum=a |
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| 80 | a=b |
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| 81 | b=dum |
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| 82 | END SUBROUTINE swap_z |
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| 83 | |
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| 84 | !************************************************ |
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| 85 | |
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| 86 | SUBROUTINE swap_zv(a,b) |
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| 87 | COMPLEX(KIND(0D0)), DIMENSION(:), INTENT(INOUT) :: a,b |
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| 88 | COMPLEX(KIND(0D0)), DIMENSION(SIZE(a)) :: dum |
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| 89 | dum=a |
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| 90 | a=b |
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| 91 | b=dum |
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| 92 | END SUBROUTINE swap_zv |
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| 93 | |
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| 94 | !************************************************ |
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| 95 | |
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| 96 | SUBROUTINE swap_zm(a,b) |
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| 97 | COMPLEX(KIND(0D0)), DIMENSION(:,:), INTENT(INOUT) :: a,b |
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| 98 | COMPLEX(KIND(0D0)), DIMENSION(size(a,1),size(a,2)) :: dum |
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| 99 | dum=a |
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| 100 | a=b |
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| 101 | b=dum |
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| 102 | END SUBROUTINE swap_zm |
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| 103 | |
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| 104 | !************************************************ |
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| 105 | |
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| 106 | SUBROUTINE masked_swap_rs(a,b,mask) |
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| 107 | REAL, INTENT(INOUT) :: a,b |
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| 108 | LOGICAL, INTENT(IN) :: mask |
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| 109 | REAL :: swp |
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| 110 | if (mask) then |
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| 111 | swp=a |
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| 112 | a=b |
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| 113 | b=swp |
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| 114 | end if |
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| 115 | END SUBROUTINE masked_swap_rs |
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| 116 | |
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| 117 | !************************************************ |
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| 118 | |
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| 119 | SUBROUTINE masked_swap_rv(a,b,mask) |
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| 120 | REAL, DIMENSION(:), INTENT(INOUT) :: a,b |
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| 121 | LOGICAL, DIMENSION(:), INTENT(IN) :: mask |
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| 122 | REAL, DIMENSION(size(a)) :: swp |
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| 123 | where (mask) |
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| 124 | swp=a |
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| 125 | a=b |
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| 126 | b=swp |
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| 127 | end where |
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| 128 | END SUBROUTINE masked_swap_rv |
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| 129 | |
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| 130 | !************************************************ |
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| 131 | |
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| 132 | SUBROUTINE masked_swap_rm(a,b,mask) |
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| 133 | REAL, DIMENSION(:,:), INTENT(INOUT) :: a,b |
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| 134 | LOGICAL, DIMENSION(:,:), INTENT(IN) :: mask |
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| 135 | REAL, DIMENSION(size(a,1),size(a,2)) :: swp |
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| 136 | where (mask) |
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| 137 | swp=a |
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| 138 | a=b |
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| 139 | b=swp |
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| 140 | end where |
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| 141 | END SUBROUTINE masked_swap_rm |
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| 142 | |
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| 143 | END MODULE swap_m |
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