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made erase_if returned count exact

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joaquintides
2023-03-30 10:08:38 +02:00
parent f468fb77e0
commit 6399dfd1e4
1 changed files with 4 additions and 3 deletions
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7
include/boost/unordered/detail/foa/concurrent_table.hpp
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@ -564,16 +564,17 @@ public:
template<typename F> template<typename F>
std::size_t erase_if(F&& f) std::size_t erase_if(F&& f)
{ {
auto lck=shared_access(); auto lck=shared_access();
std::size_t s=unprotected_size(); std::size_t res=0;
for_all_elements( for_all_elements(
group_exclusive{}, group_exclusive{},
[&,this](group_type* pg,unsigned int n,element_type* p){ [&,this](group_type* pg,unsigned int n,element_type* p){
if(f(cast_for(group_exclusive{},type_policy::value_from(*p)))){ if(f(cast_for(group_exclusive{},type_policy::value_from(*p)))){
super::erase(pg,n,p); super::erase(pg,n,p);
++res;
} }
}); });
return std::size_t(s-unprotected_size()); return res;
} }
#if defined(BOOST_UNORDERED_PARALLEL_ALGORITHMS) #if defined(BOOST_UNORDERED_PARALLEL_ALGORITHMS)