types.h

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#pragma once
 
#include <pcl/pcl_config.h>
#include <pcl/pcl_macros.h>
#include <vector>
 
#include <cstdint>
 
#include <Eigen/Core>
 
namespace pcl
{
  namespace detail {
    template <std::size_t Bits, bool Signed = true>
    struct int_type { using type = void; };
 
    template <std::size_t Bits, bool Signed = true>
    using int_type_t = typename int_type<Bits, Signed>::type;
 
    template <>
    struct int_type<8, true> { using type = std::int8_t; };
    template <>
    struct int_type<8, false> { using type = std::uint8_t; };
    template <>
    struct int_type<16, true> { using type = std::int16_t; };
    template <>
    struct int_type<16, false> { using type = std::uint16_t; };
    template <>
    struct int_type<32, true> { using type = std::int32_t; };
    template <>
    struct int_type<32, false> { using type = std::uint32_t; };
    template <>
    struct int_type<64, true> { using type = std::int64_t; };
    template <>
    struct int_type<64, false> { using type = std::uint64_t; };
 
    constexpr std::uint8_t index_type_size = sizeof(int) * 8;
 
    constexpr bool index_type_signed = true;
}  // namespace detail
 
  using index_t = detail::int_type_t<detail::index_type_size, detail::index_type_signed>;
  static_assert(!std::is_void<index_t>::value, "`index_t` can't have type `void`");
 
  using uindex_t = detail::int_type_t<detail::index_type_size, false>;
  static_assert(!std::is_signed<uindex_t>::value, "`uindex_t` must be unsigned");
 
  template <typename T>
  using AlignedVector = std::vector<T, Eigen::aligned_allocator<T>>;
}  // namespace pcl