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msvc17 workaround

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Thomas Krijnen
2024-08-24 13:24:23 +02:00
parent cd411e1f14
commit daa6b31c5d
1 changed files with 11 additions and 3 deletions
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src/ifcparse/IfcFile.cpp
+11 -3
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@@ -29,10 +29,18 @@ namespace {
template<typename Variant, typename T> template<typename Variant, typename T>
struct is_type_in_variant; struct is_type_in_variant;
template<typename T, typename... Types> // Specialization when there are multiple types in the variant
struct is_type_in_variant<boost::variant<Types...>, T> template<typename T, typename First, typename... Rest>
struct is_type_in_variant<boost::variant<First, Rest...>, T>
{ {
static constexpr bool value = (std::is_same<T, Types>::value || ...); static constexpr bool value = std::is_same<T, First>::value || is_type_in_variant<boost::variant<Rest...>, T>::value;
};
// Specialization when there is only one type left in the variant
template<typename T, typename Last>
struct is_type_in_variant<boost::variant<Last>, T>
{
static constexpr bool value = std::is_same<T, Last>::value;
}; };
template<typename Variant, typename T> template<typename Variant, typename T>