Alignment/Geners/interface/IOIsPOD.hh - master - githubmirror/cmssw

Alignment/Geners/interface/IOIsPOD.hh

38 строк1 KB

Ivan Razumov

Remove references to deprecated std::is_pod

08 апр 2024, 10:10

08 апр 2024, 10:10d86b146

#ifndef GENERS_IOISPOD_HH_
#define GENERS_IOISPOD_HH_

#include "Alignment/Geners/interface/CPP11_type_traits.hh"

namespace gs {
  // In the following template, enum "IsPOD" is evaluated to 1
  // at compile time if T belongs to one of the known POD types.
  template <typename T>
  struct IOIsPOD {
    enum { value = std::is_standard_layout<T>::value && std::is_trivial<T>::value };
  };
}  // namespace gs

// Use the following macro (outside of any namespace)
// to declare some struct as POD for I/O purposes
//
#define gs_declare_type_as_pod(T) /**/ \
  namespace gs {                       \
    template <>                        \
    struct IOIsPOD<T> {                \
      enum { value = 1 };              \
    };                                 \
    template <>                        \
    struct IOIsPOD<T const> {          \
      enum { value = 1 };              \
    };                                 \
    template <>                        \
    struct IOIsPOD<T volatile> {       \
      enum { value = 1 };              \
    };                                 \
    template <>                        \
    struct IOIsPOD<T const volatile> { \
      enum { value = 1 };              \
    };                                 \
  }

#endif  // GENERS_IOISPOD_HH_