Dear all, I am hitting a wall with the attached code in CL and C versions. For those interested, this is code lifted from Knuth's pages on random number generation (https://www-cs-faculty.stanford.edu/~knuth/programs.html#rng).
The problem is that there is a discrepancy in the "problem" loop between the CL and the C and I cannot figure out why, although the culprit may be that CL does not have "proper" 64 bits ints. I am running on LW 8.x on an Intel Mac. I have not tried on other CL implementations/platforms. I compile the C code with clang (Apple clang version 15.0.0 (clang-1500.0.40.1) If you run the code, you will see that the discrepancy appears at 'j = 14' in the loop. What gives? Thanks Marco -- Marco Antoniotti, Professor tel. +39 - 02 64 48 79 01 DISCo, Università Milano Bicocca U14 2043 http://dcb.disco.unimib.it Viale Sarca 336 I-20126 Milan (MI) ITALY
problem-loop.c
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problem-loop.lisp
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