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feat: remove resize and add try_reserve

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ToruNiina
2020-03-27 18:05:31 +09:00
parent 5212992f05
commit 9b52dc0131
1 changed files with 12 additions and 17 deletions
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29
toml/utility.hpp
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@@ -36,30 +36,25 @@ inline std::unique_ptr<T> make_unique(Ts&& ... args)
namespace detail
{
template<typename T>
inline void resize_impl(T& container, std::size_t N, std::true_type)
template<typename Container>
void try_reserve_impl(Container& container, std::size_t N, std::true_type)
{
container.resize(N);
return ;
container.reserve(N);
return;
}
template<typename T>
inline void resize_impl(T& container, std::size_t N, std::false_type)
template<typename Container>
void try_reserve_impl(Container&, std::size_t, std::false_type) noexcept
{
if(container.size() >= N) {return;}
throw std::invalid_argument("not resizable type");
return;
}
} // detail
template<typename T>
inline void resize(T& container, std::size_t N)
template<typename Container>
void try_reserve(Container& container, std::size_t N)
{
if(container.size() == N) {return;}
return detail::resize_impl(container, N, detail::has_resize_method<T>());
if(N <= container.size()) {return;}
detail::try_reserve_impl(container, N, detail::has_reserve_method<Container>{});
return;
}
namespace detail