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Remove a variable template usage

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Because it’s only supported in gcc>=5.0
This commit is contained in:
louiz’
2018-01-25 01:22:35 +01:00
parent 23e51e814f
commit 33a5f1355d
3 changed files with 12 additions and 15 deletions
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src/utils/is_one_of.hpp
+3 -6
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@@ -3,15 +3,12 @@
#include <type_traits>
template <typename...>
struct is_one_of_implem {
struct is_one_of {
static constexpr bool value = false;
};
template <typename F, typename S, typename... T>
struct is_one_of_implem<F, S, T...> {
struct is_one_of<F, S, T...> {
static constexpr bool value =
std::is_same<F, S>::value || is_one_of_implem<F, T...>::value;
std::is_same<F, S>::value || is_one_of<F, T...>::value;
};
template<typename... T>
constexpr bool is_one_of = is_one_of_implem<T...>::value;