8000 MAINT, BUG: fixes from seedsequence by mattip · Pull Request #13837 · numpy/numpy · GitHub
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MAINT, BUG: fixes from seedsequence #13837

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Merged
merged 2 commits into from
Jun 26, 2019
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MAINT, BUG: fixes from seedsequence #13837

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0897a68
BUG: fix PCG64 ng->inc.high initialization
mattip Jun 26, 2019
5c5965c
DOC: fixup docs for current set of BitGenerators
mattip Jun 26, 2019
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BUG: fix PCG64 ng->inc.high initialization
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@mattip
mattip committed Jun 26, 2019
commit 0897a68a124a18bebcadeb30d92134ea4f049c96
2 changes: 1 addition & 1 deletion numpy/random/src/pcg64/pcg64.h
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Expand Up @@ -168,7 +168,7 @@ static inline void pcg_setseq_128_srandom_r(pcg_state_setseq_128 *rng,
pcg128_t initseq) {
rng->state = PCG_128BIT_CONSTANT(0ULL, 0ULL);
rng->inc.high = initseq.high << 1u;
rng->inc.high |= initseq.low & 0x800000000000ULL;
rng->inc.high |= initseq.low >> 63u;
rng->inc.low = (initseq.low << 1u) | 1u;
pcg_setseq_128_step_r(rng);
rng->state = pcg128_add(rng->state, initstate);
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