Doubly-linked list/Definition: Difference between revisions
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=={{header|Fortran}}== |
=={{header|Fortran}}== |
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Tested with g95. |
Tested with g95 and gfortran v. 4.6. |
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<lang fortran> |
<lang fortran> |
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module dlist |
module dlist |
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contains |
contains |
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! Create a new doubly-linked list |
! Create a new doubly-linked list |
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type(dll) function new_dll() |
elemental type(dll) function new_dll() |
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new_dll = dll() |
new_dll = dll(null(),null(),0) |
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return |
return |
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end function new_dll |
end function new_dll |
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! Append an element to the end of the list |
! Append an element to the end of the list |
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subroutine append(dl2, value) |
elemental subroutine append(dl2, value) |
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type(dll), intent(inout) :: dl2 |
type(dll), intent(inout) :: dl2 |
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integer, intent(in) :: value |
integer, intent(in) :: value |
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type(node) :: element |
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type(node), pointer :: np |
type(node), pointer :: np |
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! Prepend an element to the beginning of the list |
! Prepend an element to the beginning of the list |
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subroutine prepend(dl2, value) |
elemental subroutine prepend(dl2, value) |
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type(dll), intent(inout) :: dl2 |
type(dll), intent(inout) :: dl2 |
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integer, intent(in) :: value |
integer, intent(in) :: value |
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type(node) :: element |
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type(node), pointer :: np |
type(node), pointer :: np |
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! Insert immediately before the given index |
! Insert immediately before the given index |
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subroutine insert(dl2, index, value) |
elemental subroutine insert(dl2, index, value) |
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type(dll), intent(inout) :: dl2 |
type(dll), intent(inout) :: dl2 |
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integer, intent(in) :: index |
integer, intent(in) :: index |
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end subroutine tidy |
end subroutine tidy |
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subroutine init(dl2, value) |
elemental subroutine init(dl2, value) |
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type(dll), intent(inout) :: dl2 |
type(dll), intent(inout) :: dl2 |
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integer, intent(in) :: value |
integer, intent(in) :: value |
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