testlist <- list(by = c(-168175862L, 842329041L, 757456284L, 1916111416L,  -830526701L, 205720848L, -1821787988L, 859226664L, 798569058L,  -853724165L, 1108383669L, 1159851284L, -1609029716L, 1547025903L,  NA, -1419904549L, -148095548L, 1232125836L, -2141765178L, 2016336409L,  1174521250L, 914526933L, -131225949L, -1952416126L, -860142059L,  721854892L, 1575121621L, 273477207L, 1303705988L, 915101998L,  -1174416828L, -1622096277L, 202146103L, 304276335L, 89474325L,  -1590465297L, -412716258L, -238269270L, -887165333L, 1874122363L,  -1051217197L, 2056668031L, -343370611L, -1157530461L, 1743765848L,  415857942L, 754053531L, -1496836505L, 533215897L, 1585256522L,  95279041L, -1370266603L, 1109749245L, 846234462L, 1651898632L,  1024421724L, -659950026L, 655261740L, -1151865495L, -1437499668L,  1995237801L, 1550649278L, -503200225L, 271940584L, -546234618L,  -2137050565L, -148855391L, 1898155752L, 259494252L, -459789626L,  -1712200278L, 643928581L, -760149166L, 1363054152L, 1580460495L,  1450686310L), filename = character(0), from = c(2090389733L,  240357077L, -1206929319L, -297134123L, 1785270083L, 384440520L,  1808605104L, 113557122L, 1552836458L, -504020838L, 83424243L,  1108002988L, 1943531401L, -1039707859L, -714023461L, 882597265L,  717552395L, NA, 882487414L, -1552407785L, 1343397906L, 452083695L,  1646119575L, -1205393182L, -349966684L, 1603494291L, 739379664L,  -1976768550L, 1065872473L, 2032945372L, 1225945857L, 966517796L,  -1093482467L, 1697230994L, 1002070726L, -431382491L, -796033462L,  -1178196478L, -661060847L, 887567858L, -1174597601L, 666939746L,  2048075873L, 1556710956L, 1443198479L, -878964316L, 890549609L,  -51684171L, -395521009L, 746943143L, -1734735628L, 1670259129L,  -1818769313L, 886637417L, -289877014L, -1557160052L, -1686856761L,  -116560238L, -1468627445L, 94881176L, 1066268531L, 1744493653L,  -1280360618L, -555818375L, 1384005964L, 1144562958L, 644103979L,  201638731L, -1849966856L, -1248178840L, 1250737960L, 1805755069L,  534972843L, -1830297928L, 1277027160L, 564634547L, 1650567959L,  -67534779L, -2059440400L, -535777792L, -206066811L, -1618395413L,  -1490992184L, -924419286L), to = c(-557283930L, -1375612427L,  672348232L, -708776490L, -1232881732L, -946227773L, 624123195L,  -253495090L, -1417776038L, 2135248807L, 1485303597L, 1205601277L,  1622915367L, 1416555129L, -1572293230L, 732782806L, 735326378L,  444617074L, 121675855L, 497241213L, NA, 1955539990L, -673077246L,  -1912022854L, -586586889L, -1984534128L, -167125229L, -1389588469L,  842383014L, -991248997L, -882533031L, 1853166411L, 2121810439L,  782997540L, -1250477982L, 381453757L, -47481663L, 356080864L))
result <- do.call(oce:::do_ldc_ad2cp_in_file,testlist)
str(result)