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discard """
output: '''0.0
0.0
0
0
0
'''
"""
include compilehelpers
type
Matrix*[M, N, T] = object
aij*: array[M, array[N, T]]
Matrix2*[T] = Matrix[range[0..1], range[0..1], T]
Matrix3*[T] = Matrix[range[0..2], range[0..2], T]
proc mn(x: Matrix): Matrix.T = x.aij[0][0]
proc m2(x: Matrix2): Matrix2.T = x.aij[0][0]
proc m3(x: Matrix3): auto = x.aij[0][0]
var
matn: Matrix[range[0..3], range[0..2], int]
mat2: Matrix2[int]
mat3: Matrix3[float]
echo m3(mat3)
echo mn(mat3)
echo m2(mat2)
echo mn(mat2)
echo mn(matn)
reject m3(mat2)
reject m3(matn)
reject m2(mat3)
reject m2(matn)
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