testlist <- list(A_ = c(-9.31459158171356e-263, 1.37733221059678e+285, -7.38499495524923e-107,  4.31571672595529e-97, NaN, 1.05579160375062e+217, -4.56838266406849e+20,  7.7582396548828e-204, -1.07333634521545e-97, 5.28683921381e+193,  -3.34731762980491e-24, -6.55202177520758e+91, 3.07888593416565e-226,  -1.07738815180417e+139, 0.00640291998807729, -6.51189856089981e+104,  -4.24225695869025e-51, NaN, 5.01081110711123e-30, NaN, 3.61699985598154e+47,  4.45038263825154e+247, -6.45156425057516e+179, 6.70412957537723e-290,  -5.49633455661989e-39, -1.38855919893306e-274, -1.47042313268819e+227,  1.48938998086594e-186, 5.31119710271062e-51, 7.43065948715305e-166,  2.32006435256972e-29, -4.01584690354387e+253, 4.15523923628961e+197,  -7.00479815697236e-23, -9.7316160354406e-248, 6.32445562935206e+287,  1.79484893183622e+27, -2.42577261368077e-104, -3.71070870508151e+29,  -3.47225786597173e-41, -3.98373487451772e+248, 7.05626575788154e+84,  6.37187823495624e+67, 3.78194352688496e+103, 8.39183429521472e+214,  NA, 3.94205253862258e-168, 4.45185826500838e-230, 2.29067117140171e+33,  -2.31630011801655e-264, -2.85077794607593e+270, -1.72478143521502e+80,  -2.35814658417283e+229, 4.98004651222895e+206, -1.57215814748735e+243,  -1.34093989291803e+137, 1.25187362981071e-261, -1.63316637822856e+258,  -3.77672548463691e+49, 9.36377582823083e-209, 3.38328287895889e-81,  3.80149238015545e-57, -6.19088737317367e-68, -1.15312224924815e-225,  -3.83391462289945e+149, -1.95609630744336e+253, 5.89792795285006e-178,  7.99284612437593e-19, 3.3884478514613e+271, -1395537742999.02,  9.99618491022388e-82, 2.08209874412453e+305, NaN), b_fixed = structure(c(6.11020453951181e+56,  2.21436182225174e-141, 1.60514117745413e-276, 3.10156801531047e-129,  3.63465608858054e+173, 7.73123932858847e+126, 3.85991624965657e+192,  9.49123463929028e-19), .Dim = c(1L, 8L)), par = c(3.48178337522489e-222,  -1.00486270196459e+58, 6.92321080753313e+106, -6.08400330559992e+59,  1.60332376690393e-214, -1.45863678142409e-77, -6.18012908661731e+32,  -3.36138660882288e-156, 1.53011823830303e-152, 1.10131808271422e-34,  6.60911056175552e+239, 2.24264506983474e-95, 7.39908128923915e-148,  -1.74821778775447e-274, -Inf, 8.78200589226384e-153, 1.79289434565329e-82,  -2.82852952427603e+231, 5.07851240483825e+103, -5.32414121404071e+137,  1.07942433727835e-131, -8.37698529248907e+83, -1.3228892760595e-91,  0.184371461196121, 3.74134524332546e-254, -9.15563656960449e-212,  3.89668140858815e-289, 4.17455584527238e-21, NaN, -4.54678036325481e+167,  3.75233845791738e+192, Inf, 8.39062025762988e-75, -2.42768503837726e+138,  -4.35623910955109e-63, 5.7700194476459e+278, 7.88478836488137e+143,  1.05153705545528e+195, 8.37359447142371e+152, NA, -1.08500666755416e+201,  4.66654338964791e+145, -1.05253981898808e+257, 2.21211854351163e-167,  -7.96597405206705e-22, -1.3866560392533e+308, -1.8457989429431e+178,  2.76740103207153e-96, -1.43692001697041e-277, 1.187902992993e+286,  3.52929611848659e+233, -3.31775217874319e+167, 2.12605011842408e+73,  1.28175231303227e+208, -7.70822299503836e-236, 7.68010468233145e-230,  1.43259215128567e-238, 1.81989648706555e+143, 2.0183072713117e-178,  5.39344027647618e+42, 2.11200839465067e+212, 2.26372808885302e-266,  -2.09149820030645e-67, -1.2301518457375e-241, -2.45323000724278e+41,  -1.07176807813018e-246, -1.21323559414164e-166, -4.75975162296889e+209,  -8.89503222014199e+23, -9.4177803805112e+148, 2.12100740574085e+50,  1.25746792978022e+184, 3.18401819957659e+274, -8.42512135307502e+98,  8.4318608965966e+107, -7.49399948858645e+143, 2.0379578471621e+39,  -2.39376723714464e-225, 8.16098406999127e+284, -Inf, 7.3335869051757e-270,  -1.1784203872999e+29, 3.41236195156664e-289, -1.85604078688036e-140,  -3.24224335282137e-75, 0))
result <- do.call(immer:::immer_ccml_calc_item_intercepts,testlist)
str(result)