graph: Add procedures to query a node's edges.
authorLudovic Courtès <ludo@gnu.org>
Sat, 21 Nov 2015 13:48:34 +0000 (14:48 +0100)
committerLudovic Courtès <ludo@gnu.org>
Sat, 21 Nov 2015 15:26:43 +0000 (16:26 +0100)
commit923d846c4dfe0f51357d3329697f54c779148dde
tree7a976f7d38f241d285d005881f17133e9032751b
parent8fb583714f78d1b283523ef7edbb6e098946182f
graph: Add procedures to query a node's edges.

* guix/graph.scm (%node-edges, node-edges, node-back-edges)
(node-transitive-edges): New procedures.
* tests/graph.scm ("node-edges")
("node-transitive-edges + node-back-edges"): New tests.
guix/graph.scm
tests/graph.scm