Delete pre 201703L code

Author: AntoinePrv

include/xsimd/config/xsimd_cpu_features_x86.hpp

@@ -17,9 +17,7 @@
 #include <cstdint>
 #include <cstring>
 #include <type_traits>
-#if XSIMD_CPP_VERSION >= 201703L
 #include <string_view>
-#endif
 
 #include "../utils/bits.hpp"
 #include "./xsimd_config.hpp"
@@ -249,12 +247,10 @@ namespace xsimd
                 return m_manufacturer_id;
             }
 
-#if XSIMD_CPP_VERSION >= 201703L
             constexpr std::string_view manufacturer_id() const noexcept
             {
                 return { m_manufacturer_id.data(), m_manufacturer_id.size() };
             }
-#endif
 
         private:
             manufacturer_str m_manufacturer_id {};
@@ -835,12 +831,10 @@ namespace xsimd
             return leaf0().manufacturer_id_raw();
         }
 
-#if XSIMD_CPP_VERSION >= 201703L
         inline std::string_view manufacturer_id() const noexcept
         {
             return leaf0().manufacturer_id();
         }
-#endif
 
         /** The manufacturer ID string parsed into known common vendors. */
         inline x86_manufacturer known_manufacturer() const noexcept

include/xsimd/types/xsimd_batch.hpp

@@ -415,11 +415,6 @@ namespace xsimd
         XSIMD_INLINE batch logical_or(batch const& other) const noexcept;
     };
 
-#if XSIMD_CPP_VERSION < 201703L
-    template <class T, class A>
-    constexpr std::size_t batch<T, A>::size;
-#endif
-
     /**
      * @brief batch of predicate over scalar or complex values.
      *
@@ -497,11 +492,6 @@ namespace xsimd
         static XSIMD_INLINE register_type make_register(std::index_sequence<>, V... v) noexcept;
     };
 
-#if XSIMD_CPP_VERSION < 201703L
-    template <class T, class A>
-    constexpr std::size_t batch_bool<T, A>::size;
-#endif
-
     /**
      * @brief batch of complex values.
      *
@@ -643,11 +633,6 @@ namespace xsimd
         real_batch m_imag;
     };
 
-#if XSIMD_CPP_VERSION < 201703L
-    template <class T, class A>
-    constexpr std::size_t batch<std::complex<T>, A>::size;
-#endif
-
 #ifdef XSIMD_ENABLE_XTL_COMPLEX
     template <typename T, bool i3ec, typename A>
     struct batch<xtl::xcomplex<T, T, i3ec>, A>

include/xsimd/types/xsimd_traits.hpp

@@ -64,11 +64,6 @@ namespace xsimd
             static constexpr size_t size = 1;
         };
 
-#if XSIMD_CPP_VERSION < 201703L
-        template <class T>
-        constexpr size_t simd_traits_impl<T, false>::size;
-#endif
-
         template <class T>
         struct simd_traits_impl<T, true>
         {
@@ -77,11 +72,6 @@ namespace xsimd
             static constexpr size_t size = type::size;
         };
 
-#if XSIMD_CPP_VERSION < 201703L
-        template <class T>
-        constexpr size_t simd_traits_impl<T, true>::size;
-#endif
-
         template <class T, class A>
         struct static_check_supported_config_emitter
         {
@@ -143,23 +133,13 @@ namespace xsimd
         static constexpr size_t size = simd_traits<type>::size;
     };
 
-#if XSIMD_CPP_VERSION < 201703L
-    template <class T>
-    constexpr size_t revert_simd_traits<T>::size;
-#endif
-
     template <class T>
     struct revert_simd_traits<batch<T>>
     {
         using type = T;
         static constexpr size_t size = batch<T>::size;
     };
 
-#if XSIMD_CPP_VERSION < 201703L
-    template <class T>
-    constexpr size_t revert_simd_traits<batch<T>>::size;
-#endif
-
     template <class T>
     using simd_type = typename simd_traits<T>::type;
 
@@ -264,17 +244,6 @@ namespace xsimd
         static constexpr bool is_complex = detail::is_complex_v<T>; ///< True if T is complex or a batch of complex values.
     };
 
-#if XSIMD_CPP_VERSION < 201703L
-    template <class T>
-    constexpr bool batch_traits<T>::is_batch;
-    template <class T>
-    constexpr bool batch_traits<T>::is_batch_bool;
-    template <class T>
-    constexpr bool batch_traits<T>::is_any_batch;
-    template <class T>
-    constexpr bool batch_traits<T>::is_complex;
-#endif
-
     template <class T, class A>
     struct batch_traits<batch<T, A>>
     {
@@ -287,17 +256,6 @@ namespace xsimd
         static constexpr bool is_complex = detail::is_complex_v<T>;
     };
 
-#if XSIMD_CPP_VERSION < 201703L
-    template <class T, class A>
-    constexpr bool batch_traits<batch<T, A>>::is_batch;
-    template <class T, class A>
-    constexpr bool batch_traits<batch<T, A>>::is_batch_bool;
-    template <class T, class A>
-    constexpr bool batch_traits<batch<T, A>>::is_any_batch;
-    template <class T, class A>
-    constexpr bool batch_traits<batch<T, A>>::is_complex;
-#endif
-
     template <class T, class A>
     struct batch_traits<batch_bool<T, A>>
     {
@@ -310,17 +268,6 @@ namespace xsimd
         static constexpr bool is_complex = false;
     };
 
-#if XSIMD_CPP_VERSION < 201703L
-    template <class T, class A>
-    constexpr bool batch_traits<batch_bool<T, A>>::is_batch;
-    template <class T, class A>
-    constexpr bool batch_traits<batch_bool<T, A>>::is_batch_bool;
-    template <class T, class A>
-    constexpr bool batch_traits<batch_bool<T, A>>::is_any_batch;
-    template <class T, class A>
-    constexpr bool batch_traits<batch_bool<T, A>>::is_complex;
-#endif
-
     /**
      * @ingroup batch_traits
      *