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fix: add SFINAE to avoid incorrect matching

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ToruNiina 2021-04-14 13:09:51 +09:00
parent 5518b2b155
commit b592ddcca2
1 changed files with 4 additions and 1 deletions
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5
toml/get.hpp
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@ -1035,7 +1035,10 @@ find_or(const basic_value<C, M, V>& v, const toml::key& ky, T&& opt)
template<typename T, typename C, template<typename T, typename C,
template<typename ...> class M, template<typename ...> class V, template<typename ...> class M, template<typename ...> class V,
typename ... Ks> typename ... Ks,
typename detail::enable_if_t<(sizeof...(Ks) > 1), std::nullptr_t> = nullptr>
// here we need to add SFINAE in the template parameter to avoid
// infinite recursion in type deduction on gcc
auto find_or(const basic_value<C, M, V>& v, const toml::key& ky, Ks&& ... keys) auto find_or(const basic_value<C, M, V>& v, const toml::key& ky, Ks&& ... keys)
-> decltype(find_or<T>(v, ky, detail::last_one(std::forward<Ks>(keys)...))) -> decltype(find_or<T>(v, ky, detail::last_one(std::forward<Ks>(keys)...)))
{ {