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Core: SubRangeOf

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git-svn-id: svn://ultimatepp.org/upp/trunk@10232 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cxl 2016-09-22 11:03:11 +00:00
parent fae566e99c
commit 85b3470e86
2 changed files with 19 additions and 1 deletions
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18
uppsrc/Core/CoAlgo.h
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@ -13,7 +13,23 @@ void CoLoopI(Iter begin, Iter end, const Lambda& lambda, int max_chunk = INT_MAX
}
template <class Range, class Lambda>
void CoLoop(Range r, const Lambda& lambda, int max_chunk = INT_MAX)
void CoLoop(Range& r, const Lambda& lambda, int max_chunk = INT_MAX)
{
size_t chunk = max(r.GetCount() / CPU_Cores(), 1);
chunk = min(chunk, (size_t)max_chunk);
CoWork co;
auto begin = r.begin();
auto end = r.end();
while(begin < end) {
co & [=] {
lambda(SubRange(begin, begin + min(chunk, size_t(end - begin))));
};
begin += chunk;
}
}
template <class Range, class Lambda>
void CoLoop(const Range& r, const Lambda& lambda, int max_chunk = INT_MAX)
{
size_t chunk = max(r.GetCount() / CPU_Cores(), 1);
chunk = min(chunk, (size_t)max_chunk);

2
uppsrc/Core/Range.h
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@ -51,6 +51,8 @@ auto SubRange(const C& c, int pos, int count) -> decltype(SubRange(c.begin() + p
return SubRange(c.begin() + pos, count);
}
template <class C> using SubRangeOf = decltype(SubRange(((C *)0)->begin(), ((C *)0)->end()));
template <class T>
struct ConstRangeClass {
T value;