Graphviz Bug Report 76

Number: 76
Title: Core dump using head/tail ports and loop
Submitter: John Ellson
Date: Mon Jan 21 11:28:03 2002
Subsys: Dot
Version: 1.1.17
System: *-*-
Severity: minor
Problem:
The following graph causes a core dump. If the edge line is remove, dot works okay.
Input:


digraph polyport {
  edge [headport=":w", tailport=":e"]
  n0->n0
}

Comments:
[erg] If the edge is changed to n0 -> n1, there is no core dump, but the two nodes are placed about 95 inches apart and the spline output is ill-formed. This is an old bug, as I encountered the problem using dot 1.5.1, circa September 99.

This problem (when using n0 -> n1) is fixed with bug 158.

See bug 275.
Owner: erg
Status: Fixed (8 Sept 2004)