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Update TinyThread.h #146

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Merged
kevinushey merged 1 commit into from
Jan 4, 2021
Merged

Update TinyThread.h #146

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11 changes: 8 additions & 3 deletions inst/include/RcppParallel/TinyThread.h
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Original file line number Diff line number Diff line change
Expand Up @@ -89,10 +89,15 @@ std::vector<IndexRange> splitInputRange(const IndexRange& range,
// allocate ranges
std::vector<IndexRange> ranges;
std::size_t begin = range.begin();
std::size_t end = begin;
while (begin < range.end()) {
std::size_t end = std::min(begin + grainSize, range.end());
ranges.push_back(IndexRange(begin, end));
begin = end;
if ((range.end() - (begin + grainSize)) < grainSize)
end = range.end();
else
end = std::min(begin + grainSize, range.end());

ranges.push_back(IndexRange(begin, end));
begin = end;
}

// return ranges
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