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implemented erase_if

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joaquintides
2022-10-12 15:34:05 +02:00
parent 006f62047b
commit becd166e66
1 changed files with 17 additions and 1 deletions
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18
include/boost/unordered/detail/foa.hpp
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@ -1239,6 +1239,12 @@ public:
rehash(std::size_t(std::ceil(static_cast<float>(n)/mlf)));
}
template<typename Predicate>
friend std::size_t erase_if(table& x,Predicate pr)
{
return x.erase_if_impl(pr);
}
private:
template<typename,typename,typename,typename> friend class table;
using arrays_type=table_arrays<value_type,group_type,size_policy>;
@ -1523,6 +1529,16 @@ private:
}
#endif
template<typename Predicate>
std::size_t erase_if_impl(Predicate pr)
{
std::size_t s=size();
for_all_elements([&,this](group_type* pg,unsigned int n,value_type* p){
if(pr(*p)) erase(iterator{pg,n,p});
});
return std::size_t(s-size());
}
template<typename F>
void for_all_elements(F f)const
{
@ -1534,7 +1550,7 @@ private:
->decltype(f(nullptr),void())
{
for_all_elements(
arrays_,[=](group_type*,unsigned int,value_type* p){return f(p);});
arrays_,[&](group_type*,unsigned int,value_type* p){return f(p);});
}
template<typename F>