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IDProjectCategoryView StatusDate SubmittedLast Update
0000830graphvizDotpublic2005-03-13 11:472011-04-28 04:03
ReporterAlexander 
Assigned Toerg 
PrioritynormalSeveritymajorReproducibilityalways
StatusclosedResolutionfixed 
PlatformOSx86-Windows-XPOS Version
Summary0000830: isolated source/sink subgraph
Description
then nodes within subgraph with rank=source or rank=sink are not conntected with other graph this cause abnormal program termination (abort())
Steps To Reproduce

digraph {
  subgraph { rank = source; problem }
  a -> b
}
Additional Information

[erg] This is an incredibly old bug, going back to at least 1.7 (July 2001).

Indeed, network simplex requires a connected graph. In certain cases where
source and/or sink nodes are defined, it is possible the graph constructed
in dot_pos has 2 or 3 components. The fix is to catch these cases and
make sure the graph is connected.
TagsNo tags attached.
AUXILLARY-FILES
DATE-FIXED
FIX-COMMENT
FORMER-ID643
INPUT-FILE
OUTPUT-FILE
STATUS-COMMENTFixed (14 Mar 2005)
VERSION     2.3.20050307.0530
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- Issue History
Date Modified Username Field Change
2011-04-28 04:03 user1 New Issue
2011-04-28 04:03 user1 Assigned To => erg


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