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simdjson.cpp  view on Meta::CPAN

concept returns_reference = appendable_containers<T> && requires {
  typename std::remove_cvref_t<T>::reference;
  requires requires(typename std::remove_cvref_t<T>::value_type &&val, T obj) {
    {
      emplace_one(obj, std::move(val))
    } -> std::same_as<typename std::remove_cvref_t<T>::reference>;
  };
};

template <typename T>
concept smart_pointer = requires(std::remove_cvref_t<T> ptr) {
  // Check if T has a member type named element_type
  typename std::remove_cvref_t<T>::element_type;

  // Check if T has a get() member function
  {
    ptr.get()
  } -> std::same_as<typename std::remove_cvref_t<T>::element_type *>;

  // Check if T can be dereferenced
  { *ptr } -> std::same_as<typename std::remove_cvref_t<T>::element_type &>;
};

template <typename T>
concept optional_type = requires(std::remove_cvref_t<T> obj) {
  typename std::remove_cvref_t<T>::value_type;
  { obj.value() } -> std::same_as<typename std::remove_cvref_t<T>::value_type&>;
  requires requires(typename std::remove_cvref_t<T>::value_type &&val) {
    obj.emplace(std::move(val));
    obj = std::move(val);
    {
      obj.value_or(val)
    } -> std::convertible_to<typename std::remove_cvref_t<T>::value_type>;
  };
  { static_cast<bool>(obj) } -> std::same_as<bool>; // convertible to bool

simdjson.cpp  view on Meta::CPAN

/* end file internal/isadetection.h */

#include <initializer_list>
#include <type_traits>

namespace simdjson {

bool implementation::supported_by_runtime_system() const {
  uint32_t required_instruction_sets = this->required_instruction_sets();
  uint32_t supported_instruction_sets = internal::detect_supported_architectures();
  return ((supported_instruction_sets & required_instruction_sets) == required_instruction_sets);
}

} // namespace simdjson

/* defining SIMDJSON_CONDITIONAL_INCLUDE */
#define SIMDJSON_CONDITIONAL_INCLUDE

#if SIMDJSON_IMPLEMENTATION_ARM64
/* including simdjson/arm64/implementation.h: #include <simdjson/arm64/implementation.h> */
/* begin file simdjson/arm64/implementation.h */

simdjson.cpp  view on Meta::CPAN

  return internal::get_available_implementation_pointers().begin();
}
const implementation * const *available_implementation_list::end() const noexcept {
  return internal::get_available_implementation_pointers().end();
}
const implementation *available_implementation_list::detect_best_supported() const noexcept {
  // They are prelisted in priority order, so we just go down the list
  uint32_t supported_instruction_sets = internal::detect_supported_architectures();
  for (const implementation *impl : internal::get_available_implementation_pointers()) {
    uint32_t required_instruction_sets = impl->required_instruction_sets();
    if ((supported_instruction_sets & required_instruction_sets) == required_instruction_sets) { return impl; }
  }
  return get_unsupported_singleton(); // this should never happen?
}

const implementation *detect_best_supported_implementation_on_first_use::set_best() const noexcept {
  SIMDJSON_PUSH_DISABLE_WARNINGS
  SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe
  char *force_implementation_name = getenv("SIMDJSON_FORCE_IMPLEMENTATION");
  SIMDJSON_POP_DISABLE_WARNINGS