documentation for the macro "set_tuple_role_transition"

Sets the product role transitions for the two supplied factor roles.

It is defined in the file sets.m4.

m4 code:

define(`set_tuple_role_transition',
`define(`role_transitionsX$1X$2',cartesian(role_transitionsX$1,X`'patsubst(role_transitionsX$2,`
',`
X')))')