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Allow to build with intel c++ compiler

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This commit is contained in:
Guillaume Fraux
2017-06-12 15:04:59 +02:00
parent 0d9b910d5d
commit 57cc7f77c1
5 changed files with 32 additions and 8 deletions
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10
toml/traits.hpp
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@@ -37,6 +37,12 @@ struct has_resize_method_impl
template<typename T> static std::false_type check(...);
};
/// Intel C++ compiler can not use decltype in parent class declaration, here
/// is a hack to work around it. https://stackoverflow.com/a/23953090/4692076
#ifdef __INTEL_COMPILER
#define decltype(...) std::enable_if<true, decltype(__VA_ARGS__)>::type
#endif
template<typename T>
struct has_iterator : decltype(has_iterator_impl::check<T>(nullptr)){};
template<typename T>
@@ -48,6 +54,10 @@ struct has_mapped_type : decltype(has_mapped_type_impl::check<T>(nullptr)){};
template<typename T>
struct has_resize_method : decltype(has_resize_method_impl::check<T>(nullptr)){};
#ifdef __INTEL_COMPILER
#undef decltype(...)
#endif
template<typename T>
struct is_container : std::integral_constant<bool,
has_iterator<T>::value && has_value_type<T>::value>{};