testlist <- list(freq = -2.34292146328305e-197, seed = 15781789L, t = c(-1.10233632117713e-248,  1.43329391670099e+135, -8.61569808086305e-194, 1.84287763420304e-268,  -6.23944322639593e+246, 3.94010912237758e+292, 5.86002710039609e-276,  -1.01891271368264e+285, -6.08262733733855e+271, 1.48202179902357e+193,  2.94789813319858e+35, -9.59232004169606e+67, -3.08859188571933e+103,  -406.731460939053, 7.8013517055338e-280, 4.62996800851004e+285,  -7.86300611412806e-217, 7.20089573528025e+238, Inf, NaN, 7.52370110534489e-182,  1.4355402517294e+23, 1.42909193558046e+77, 2.60843506787537e+38,  5.71476667365304e-18, -8.95172317768346e-219, 1.79358695799022e+302,  1.75488523841583e-58, -9.67311349436275e-138, 1.99050182530187e+266,  2.97595712102157e+221, -2.89069054983434e-58, 24712312386888925184,  -1.67603737332622e+242, 1.10739052685019e-267, -1.49230064582168e-145,  -8.52805290592315e-50, -2.00441390100963e-272, 2.32606683897408e-208,  -1.07385979328288e-48, -7.47234443147681e-30, -8.77141826882886e-184,  2.45726851412357e+149, 1.60494475540632e-19, -1.46845991974863e+25,  -1.39145771001325e+276, -1.58181633083261e-16, Inf, -4.18849452430182e+155,  1.36784549285874e-135, -3.23162728393168e-231, -2.19506575757079e-274,  1.74022610069512e-147, 6.52331420578608e+54, 5.66559978150185e-20,  -3.92807899516012e-243, -6.93789754142099e-277, -9.62895268677486e-291,  -2.21205393063892e+235, 9.43422645682779e+112, -3.25391521028799e-31,  7.57310901386903e-211, -8.34154993399278e-115, 3.35066057915961e-190,  -4.49768586483219e+155, 1.22808039223229e+306, 2.80024016002199e+293,  -3.11070265929803e-124, 2.74591911429948e+74, Inf, -2.25532464874683e+45,  8.8403999020114e-157, -5.41611771303158e+261, 8.43909524188713e+290,  -2.68722123934091e-95, 8.79362175485731e+49, 7.96064536079354e-266,  -8.4142446359397e-125, 2.34897310525751e-299, 6.85880046947651e+142,  -8.20880771522197e+170, 1.18843378869756e+31, -0.00804330034708801,  -5.27436302383398e-155, -4.89462229180708e-281, 0), x = c(8.46581883436498e-176,  7.94779625664785e-81, -3.72028510244753e-25, -1.52801361756384e+46,  -2.11936194523593e+247, 2.55794217606506e-167, NA, 5.6251408712733e+27,  -2.91730655541799e+64, 2.10907769573857e+35, 2.71036036955933e-178,  8.11895566513026e+252, 1.0580122076309e+282, -1.7478448943982e-97,  -7.4080739521657e-132, -7.50605541574017e-289, 2.15810830211254e+136,  -1.03715231822813e-74, 3.83847126900226e+95, -1.13037425963274e+307,  -7.7032171758612e-32, -3.10328093727042e+88, 3.17805974201047e+104,  -5.00759692431775e-14, -Inf, -1.7740280051143e+249, -8.20868774431676e-62,  2.8974372446496e-275, -1.1781769505311e+71, -Inf, -4.02052685244267e+159,  -9.09849970934581e+274, -2.7526704164011e+143, -2.29518646638044e-26,  2.2837899052693e-293, 4.28907380094878e-207, 2.38293553026394e-56,  -1.12826102420307e+157, -4.88733668536221e+216, -1.03151548875759e-48,  -1.57682288882596e-20, -127324.757701401, 1.00374946658753e-142,  -1.64006355533082e-76, 1.86000752957607e-61, -4.80539535200978e-91,  -7.55416469808788e+241, 2.30700380064105e-181, -3.11808794720133e-307,  NA, -3.9853491482839e-278, 2.58972217796126e+265, -9.33728499401295e-122,  -1.00187766109145e+96, -1.97534300949322e-45, 2.80233583947136e-240,  0), y = c(-6.20445436459322e-260, 7.43960090773047e+132, 3.1092707798014e+64,  8.75674125158478e-41, 1.20678701966887e+177, 5.55357406573952e+194,  -1.10670250630834e-122, -2.06673947542798e-270, -6.34285900329458e-218,  3.69862435671669e-22, 1.1906771687396e-136, 1.0484587371494e-21,  1.35853161931943e+189, 8.2665832828502e+46, 1.30414010930752e-47,  -4.19466428907612e-232, 5.00227020916311e+116, -5.44665560199019e+275,  1.07185659714454e-37, 3.30448656196366e+209, 2.13436767762782e+283,  -1.64985732793461e-79, 7.0407326773834e-131, -1.5862218537296e+175,  -4.64618712833204e+191, -16933944708707642, -1.59982302062867e-276,  -4.52638632855224e+253, -1.33534824111017e-202, 8.03468028044318e+45,  8.18344043267587e+207, 3.98346283851603e+180, -1.48387328439582e-182,  4.91465635048558e+269, 3.30448656196366e+209, -1.11866202083432e+112,  1.68712253428705e+31, 1.19131698606959e-99, 5.9422988746312e-75,  -1.31747304989381e-250, 1.98273986757915e-157, -0.000186448100088502,  -1.06955680805264e+37, -2.21638511326433e-74, 5.636532949764e+37,  1.07232244513982e-147, -7.85275527292499e+150, -2.17551622546528e+117,  -2.74565222683641e+85, 2.67000138282257e-229, 1.46269151194611e-251,  3.09472137451594e-264, 5.50907380021386e-226, 4.30785038207015e+262,  -1.16877664744313e+165, -2.88941034767175e+123, 9.72648810934713e-144,  NA, -2.77724879351801e+167, -4.68965994157557e-148, -2.83173891083813e+208,  -1.11140169242698e-30, -7.91565466477013e+152, 1.41019756747033e-225,  -6.92513120634177e+72, 1.59849716533602e-161, 5.35648825072338e+299,  Inf, 3.78707619476652e+247, 71663120790788552, -8.0003252180224e-132,  -2.42370182149676e-169, 3.8860911301427e+212, 3.2979685237517e-206,  -1.33820555621428e+20, 4.67742033664538e-214, 9.63357102432229e-187,  -36875293613912304, -6.02404184866378e-263, -6.33535637184709e-228,  3.27358482981144e+117, 4.40733393337031e-295, 1.33508386260248e+48,  -1.43298497596189e-75, 1.10671353408181e+240, 1.3842943531918e-166,  NaN, -4.25292764103382e+295, 3.74066872623535e-118, -1.4892081235697e+20,  -1.16305402066927e+281, -7.37219906057039e-85, -4.0337420107311e-117,  -6.57012938644152e+243, 0), z = NA_real_)
result <- do.call(ambient:::gen_simplex4d_c,testlist)
str(result)