discard """
errormsg: "got <ref Matrix[2, 2, system.float], ref Matrix[2, 1, system.float]>"
line: 27
"""
type
Matrix[M,N: static[int]; T: SomeFloat] = distinct array[0..(M*N - 1), T]
let a = new Matrix[2,2,float]
let b = new Matrix[2,1,float]
proc foo[M,N: static[int],T](a: ref Matrix[M, N, T], b: ref Matrix[M, N, T])=
discard
foo(a, a)
proc bar[M,N: static[int],T](a: ref Matrix[M, M, T], b: ref Matrix[M, N, T])=
discard
bar(a, b)
bar(a, a)
proc baz[M,N: static[int],T](a: ref Matrix[N, N, T], b: ref Matrix[M, N, T])=
discard
baz(a, a)
baz(a, b)