testlist <- list(freq = -3527961996380689920, seed = -231889142L, t = c(1.99476438464431e-122,  -1.25344629674016e+194, 2.18493427779354e+203, -6.20626882415806e-257,  1.52193728288969e-136, -1.49325139997051e-49, 8.58701016222452e-73,  -1.61898382833933e-77, -3.25140055177634e-34, 1.17484523956765e+52,  -8.12365267468559e-77, -1.08185318499387e-169, -4.19787970309924e+209,  -2.76535838860381e+289, 56441736380478616, 1.13883160374434e+248,  5.62333933319548e+233, -5.71520112317486e-72, -1.13704255559751e-202,  2.94967484685827e-147, 2.55746616716373e-277, -1.75916737436374e+233,  -1.79739087725341e+280, 9.06332511509739e-126, 3.1066754129868e+99,  9.77577452618181e+299, -1.31645481132679e-59, -4.62037725335691e-293,  -3.0619335650418e-206, Inf, -5.57211431450502e+179, 1.21195824486739e+259,  -1.06625297941084e+171, -Inf, -7.06862971282989e+166, 5.94652682560904e+268,  -2.06828972550961e-58, 1.03820986713727e+38, -2.16893441664808e+174,  -6.35878803420664e-124, -2.77458970738421e-277, -2.13110862536919e-221,  -6.08109607424288e-42, 9.91090796939643e+278, 4.11072224166275e+46,  -6.15997267766221e+276, 1.75683659731777e+114, -3.29557186355854e+112,  -1.4807090980908e+229, 3.65260612785402e-70, 1.99207311477386e-92,  -1.49016969048425e+92, -Inf, 2.6460380612631e+295, 1.23111702680158e-64,  -9.26740050497892e+67, -2.71970702298033e+138, 3.69382965329185e+42,  2.43468038886366e-164, 4.26922387931999e+153, 2.65507672847495e+48,  -5.21699333328441e-35, -Inf, 5.17387261333069e-77, 1.87198609476295e+295,  4.99121938592846e+53, -3.93331191353803e+118, 1.18233478374588e+301,  5.69424359247716e+63, 1.33545543933444e+284, -3.29101181826161e+121,  -1.77259546199079e-297, -6.03265890895215e+234, -7.91659408761615e-92,  -6.89720847201738e-98, -1.07289828515657e-36, -6.53700124210405e-227,  -4.35335513339467e-142, -5.24393501507063e-37, 2.31518541758499e+64,  6.85594750041102e+59, -3.6960994039832e+296, -4.56611209617777e-269,  -2.41034077236833e+82, -3.35859056950231e-283, 5.37444316137365e-33,  9.57053283368315e-194, 2.58844487396408e-69, -68585573772325344,  -4.12876252792898e-71, -9.49508011476834e+107, 1.13825594439821e+36,  1.80525750318622e+47, 2.31968864806174e-97, 0), x = c(-9.94560419176764e+248,  -4.45001123639066e-302, 3.19462706403865e+199, -1.24742102590483e-125,  -Inf, 3.48467135859492e-10, -2.69830386573256e-145, 1.59451250376661e-47,  1.71477200026515e-83, -1.3513526257843e+159, -3.21541995331958e-22,  -3.43564815000106e-09, -9.08672968914e-37, 6.79093033522568e-223,  -2.24146256392445e-100, 2.30669511022008e+125, -7.2911904562895e-297,  7.17385134559875e+81, 1.11973475061108e+138, 3.8155936687562e+284,  -7.40899275669554e+146, -2.94849805524142e-240, -2.02623398181418e-43,  1.0770839967306e-15, 3.49183128737322e+22, -2.76657000106102e-303,  -6.67923032055677e+275, 4.08010453160576e-278, -1.67434108958623e-293,  NaN, -5.1040420573229e-85, 3.23052029135613e-225, 9.01119548183004e-43,  6.54928229680954, -2.47496132757162e-96, -2.00808574325378e-150,  8.22936452958139e+48, -1.53939536395697e+176, 1996814518767173,  -6.76386911423979e+23, -4.14617412099693e-285, -8.0452650020229e+23,  -8.46830326541203e+82, -2.41126547505962e+70, -3.10343530344357e-85,  -2.47066326292145e+284, -1.27566510192568e+184, 1.66689946605868e+97,  7.53295339030674e+115, 1.50665166273021e-259, 1.07915269391405e+49,  1.89127691325469e+194, -3.49286613561954e+74, 7.19575553713032e+105,  3.86923506154368e+157, 2.87271920289046e-11, -1.51339907544742e-217,  1.0098217629217e+243, -7.29286600885025e-68, -6.99343382624812e+240,  -4.06283007214099e-140, 4.38635388148328e-99, 1.61103540531645e+299,  1.7513141325407e-164, -2.48885366707421e+125, Inf, NA, -6.68700342991974e-32,  2.24518875421401e+36, -7.38435183663868e-209, -5.29292928241098e+195,  -8.86326032467544e-42, 0), y = c(7.18777320940855e-278, -5.43648003410075e-132,  9.23428420128706e-199, NaN, -8.93759422357285e-169, 3.71187010458068e-128,  3.60775630586885e-165, -8.21754307228047e-82, -1.40181794408679e-173,  -35478091.4302208, -1.14705221018327e-217, 6.9203700264467e-51,  NA, 1.26126507026798e-263, 8.95710918992067e+53, -1.37496574071602e+137,  3.64117984232606e+305, 4.54119221571421e+196, -380151826682810176,  4.16666640439552e-38, 1.12072392116269e+167, 1.11305773591569e+168,  -1.16442875935921e-07, NA, -5.14206120548307e-90, -2.2335608431557e+102,  1.52778612758357e-215, -8.77127676606046e+238, -Inf, -1.87284009640519e+140,  3.37054576461423e-46, 6.83079786556875e+109, -2.6350643389537e+160,  5.60163574324991e+25, -1.82141363056078e-64, 2.15721194303004e+30,  3.18493165564865e+52, -2.91872174398119e+183, -1.70593648221867e+255,  -3.83616634889494e-227, 3.16722093082926e-258, -1.67383130318188e+146,  5.51764726494539e-201, 2.65669918497343e+215, -1.49477223796421e+72,  7.75715071584087e-269, -1.48762504363221e+111, 4.49290203318945e-257,  -2.7911540215433e-149, -6.68976190494529e+236, 1.00089419658847e+101,  1.55908605152828e-91, 7.13775743193908e+176, -1.8518704622157e-137,  -1.22264532638206e+211, 1.58077654492806e+111, -1.03330805862593e+122,  1.43437945593712e+175, NA, -2.90387454129021e-135, 6.35766784237014e-245,  3.72923238361846e-192, -4.45462545673596e-243, -5.43350104006678e-33,  0), z = c(3.51360226955623e-305, -1.61050690317431e+30, 2.49749858547558e+235,  Inf, 5.61840338855864e+75, -6.13444544853594e-161, -1.59610754229975e-25,  -9.08931244250339e+219, -1.4096484805961e-154, -1.62736425488978e+250,  6.25583638961239e-19, 2.71939592889769e+284, NaN, 2.67256252659786e+243,  3027333897208.73, 1.06835071198843e+212, -1.78675074694014e+80,  -2.42142421232412e-149, -1.08737879987652e+124, 1.13890852694744e-60,  9.39507677237479e+98, 1.95582390510471e-40, -2.04651957676721e-78,  -3.34890020111145e+81, 4.81262556576155e+301, -8.15422991470235e-248,  -4.63994128160776e+253, 1.24043148612705e+42, -6.58314628199773e+192,  -1.19833828325341e-160, -9.19880725898932e+297, 8.80771171832731e-153,  -3.90120048405466e-204, 4.09070025543984e-51, -9.46065065150821e-168,  2.14385642275305e+64, -1.66457587607176e-248, 6.03925330564312e+250,  NaN, 5.60309574382521e+67, -7.25208560740518e-51, -1.78859254328548e-110,  -7.37917884623223e+200, 9.33535016118749e-168, 4.95533817837878e-153,  NaN, -4.42928420554182e-301, -5.75478081025572e-291, -2.94410444125691e+190,  5.28071295293016e-215, -3.68985654116948e-23, -1.10583960678323e-150,  -2.82422319319572e-188, 3.88436630744492e+29, -6.85933917973947e-184,  -1.51804895143692e+150, 3.28615202643508e+65, -6.32305455212483e-54,  4.27278703563303e+57, 2.99004158713184e-241, 1.01547144609338e-169,  -1.23813992406288e-42, -1.78826613062242e+145, -3.68774202138606e+20,  -Inf, -6.67448701561395e+137, 1.7815534648863e-108, 4.5015791152041e+299,  -2.22213684644684e+204, 8.89614477915223e+92, 8.80946652053385e-32,  3.79246014813415e-298, -2.03762983824942e+254, -1.84236307209588e-147,  1.37777912329077e-37, 0))
result <- do.call(ambient:::gen_white4d_c,testlist)
str(result)