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Implement util::hash_table::operator[] and at()

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This commit is contained in:
Nikita Lisitsa 2024-01-29 17:44:11 +03:00
parent 368d1edd71
commit 64a6713b61
1 changed files with 27 additions and 0 deletions
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27
libs/util/include/psemek/util/hash_table.hpp
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@ -2,6 +2,7 @@
#include <psemek/util/hash.hpp> #include <psemek/util/hash.hpp>
#include <psemek/util/span.hpp> #include <psemek/util/span.hpp>
#include <psemek/util/at.hpp>
#include <memory> #include <memory>
#include <optional> #include <optional>
@ -437,6 +438,32 @@ namespace psemek::util
return impl_.end(); return impl_.end();
} }
template <typename Key1>
Value & operator[] (Key1 const & key)
{
if (auto it = find(key); it != end())
return it->second;
return insert({Key(key), Value{}}).first->second;
}
template <typename Key1>
Value & at(Key1 const & key)
{
auto it = find(key);
if (it == end())
throw util::key_error{key};
return it->second;
}
template <typename Key1>
Value const & at(Key1 const & key) const
{
auto it = find(key);
if (it == end())
throw util::key_error{key};
return it->second;
}
void clear() void clear()
{ {
impl_.clear(); impl_.clear();