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Corrected some of my documentation of flowAlgorithm that has repeatedly confused me ever since I wrote it

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This commit is contained in:
Neil Brown 2008-11-20 15:39:06 +00:00
parent e117422c31
commit be6c57ce5b
1 changed files with 4 additions and 3 deletions
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7
flow/FlowAlgorithms.hs
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@ -26,7 +26,8 @@ import qualified Data.Set as Set
import Utils
data GraphFuncs n e result = GF {
-- (Node, Edge) -> previous assumed input -> current aggregate effect -> new aggregate effect
-- (Node, Edge) -> current value for said node -> current aggregate effect for
-- the current node -> new aggregate effect
-- If it is the first node to be processed for this iteration, it will be
-- given Nothing, otherwise the result is fed back when processing the next
-- node. The second parameter is from the last iteration.
@ -63,8 +64,8 @@ data GraphFuncs n e result = GF {
--
-- The general idea of iterative data-flow is that all nodes start out with
-- a default "guessed" value. Then each node is processed in turn by using
-- the previous value (to start with, the default value), and the values of
-- all nodesToProcess in the graph. This algorithm is performed repeatedly,
-- an accumulating value (to start with Nothing), and the values associated with
-- each of the nodesToProcess in the graph. This algorithm is performed repeatedly,
-- processing all nodes, and if a node changes its value, re-adding all its
-- nodes in the other direction (nodesToReAdd) to the worklist to be processed again.
--