Program Listing for File random.h

↰ Return to documentation for file (torch/csrc/api/include/torch/data/samplers/random.h)

#pragma once

#include <torch/csrc/Export.h>
#include <torch/data/samplers/base.h>
#include <torch/types.h>

#include <cstddef>
#include <vector>

namespace torch {
namespace serialize {
class OutputArchive;
class InputArchive;
} // namespace serialize
} // namespace torch

namespace torch {
namespace data {
namespace samplers {

class TORCH_API RandomSampler : public Sampler<> {
 public:
  explicit RandomSampler(int64_t size, Dtype index_dtype = torch::kInt64);

  ~RandomSampler() override;

  void reset(optional<size_t> new_size = nullopt) override;

  optional<std::vector<size_t>> next(size_t batch_size) override;

  void save(serialize::OutputArchive& archive) const override;

  void load(serialize::InputArchive& archive) override;

  size_t index() const noexcept;

 private:
  at::Tensor indices_;
  int64_t index_ = 0;
};
} // namespace samplers
} // namespace data
} // namespace torch