Skip to content

Fix: faulty encoding without faithfulness #911

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
anujthak wants to merge 1 commit into from
Closed

Fix: faulty encoding without faithfulness #911

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 14 additions & 1 deletion gap/io.gi
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2281,6 +2281,15 @@ function(D)
# matrix, and appends a '&' to the start. The old '+' format can be read by
# DigraphFromDigraph6String, but can no longer be written by this function.

if IsMultiDigraph(D) then
if IsSymmetricDigraph(D) then
ErrorNoReturn("the argument <D> must not have multiple edges ",
"consider encoding in Sparse6 or Disparse6, ");
fi;
ErrorNoReturn("the argument <D> must not have multiple edges ",
"consider encoding in Disparse6, ");
fi;

list := [];
adj := OutNeighbours(D);
n := Length(DigraphVertices(D));
Expand Down Expand Up @@ -2338,7 +2347,11 @@ function(D)
local list, n, lenlist, adj, nredges, k, blist, v, nextbit, i, j,
bitstopad, pos, block;
if not IsSymmetricDigraph(D) then
ErrorNoReturn("the argument <D> must be a symmetric digraph,");
if IsMultiDigraph(D) then
ErrorNoReturn("the argument <D> must be a symmetric digraph consider encoding in Disparse6,");
fi;
else
ErrorNoReturn("the argument <D> must be a symmetric digraph consider encoding in Digraph6 or Disparse6,");
fi;

list := [];
Expand Down
Loading