OCCT

puts "================"
puts "OCC23845"
puts "================"
puts ""
#######################################################################
# New auxiliary method concatenating a wire into an edge based on C0-continuous curve.
#######################################################################

restore [locate_data_file bug23845_profil_0a.brep] a
restore [locate_data_file bug23845_profil_1a.brep] b

concatC0wire aa a
concatC0wire bb b

set CMP_TOL 1.e-6

# 1
checkshape aa
checkmaxtol aa -min_tol ${CMP_TOL}

# 2
checkshape bb
checkmaxtol bb -min_tol ${CMP_TOL}