Package Name: gnat.bubble_sort_g
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-- --
-- GNAT RUNTIME COMPONENTS --
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-- G N A T . B U B B L E _ S O R T _ G --
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-- S p e c --
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-- This package provides a generic bubble sort routine that can be used with
-- different types of data. See also GNAT.Heap_Sort_A, a version that works
-- with subprogram parameters, allowing code sharing. The generic version
-- is slightly more efficient but does not allow code sharing.
generic
-- The data to be sorted is assumed to be indexed by integer values from
-- 1 to N, where N is the number of items to be sorted. In addition, the
-- index value zero is used for a temporary location used during the sort.
with procedure Move (From : Natural; To : Natural);
-- A procedure that moves the data item with index From to the data item
-- with Index To. An index value of zero is used for moves from and to a
-- single temporary location used by the sort.
with function Lt (Op1, Op2 : Natural) return Boolean;
-- A function that compares two items and returns True if the item with
-- index Op1 is less than the item with Index Op2, and False if the Op2
-- item is greater than or equal to the Op1 item.
package GNAT.Bubble_Sort_G is
pragma Preelaborate (Bubble_Sort_G);
procedure Sort (N : Positive);
-- This procedures sorts items indexed from 1 to N into ascending order
-- making calls to Lt to do required comparisons, and Move to move items
-- around. Note that, as described above, both Move and Lt use a single
-- temporary location with index value zero. This sort is not stable,
-- i.e. the order of equal elements in the input is not preserved.
end GNAT.Bubble_Sort_G;