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tried yest another variation for for_all_elements_while

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joaquintides
2023-03-17 19:56:30 +01:00
committed by Christian Mazakas
parent d683b3ac3e
commit 3d34571654
1 changed files with 2 additions and 2 deletions
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4
include/boost/unordered/detail/foa/core.hpp
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@ -1634,12 +1634,12 @@ public:
static auto for_all_elements_while(const arrays_type& arrays_,F f) static auto for_all_elements_while(const arrays_type& arrays_,F f)
->decltype(f(nullptr,0,nullptr),void()) ->decltype(f(nullptr,0,nullptr),void())
{ {
#if 0 #if 1
auto p=arrays_.elements; auto p=arrays_.elements;
if(!p){return;} if(!p){return;}
for(auto pg=arrays_.groups,last=pg+arrays_.groups_size_mask+1; for(auto pg=arrays_.groups,last=pg+arrays_.groups_size_mask+1;
pg!=last;++pg,p+=N){ pg!=last;++pg,p+=N){
auto mask=pg->match_really_occupied(); auto mask=pg->match_occupied()&~(int(pg==last-1)<<(N-1));
while(mask){ while(mask){
auto n=unchecked_countr_zero(mask); auto n=unchecked_countr_zero(mask);
if(!f(pg,n,p+n))return; if(!f(pg,n,p+n))return;