chromium/third_party/libc++/src/include/__algorithm/sample.h

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP___ALGORITHM_SAMPLE_H
#define _LIBCPP___ALGORITHM_SAMPLE_H

#include <__algorithm/iterator_operations.h>
#include <__algorithm/min.h>
#include <__assert>
#include <__config>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
#include <__random/uniform_int_distribution.h>
#include <__type_traits/common_type.h>
#include <__utility/move.h>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

_LIBCPP_PUSH_MACROS
#include <__undef_macros>

_LIBCPP_BEGIN_NAMESPACE_STD

template <class _AlgPolicy,
          class _PopulationIterator,
          class _PopulationSentinel,
          class _SampleIterator,
          class _Distance,
          class _UniformRandomNumberGenerator>
_LIBCPP_HIDE_FROM_ABI _SampleIterator __sample(
    _PopulationIterator __first,
    _PopulationSentinel __last,
    _SampleIterator __output_iter,
    _Distance __n,
    _UniformRandomNumberGenerator& __g,
    input_iterator_tag) { … }

template <class _AlgPolicy,
          class _PopulationIterator,
          class _PopulationSentinel,
          class _SampleIterator,
          class _Distance,
          class _UniformRandomNumberGenerator>
_LIBCPP_HIDE_FROM_ABI _SampleIterator __sample(
    _PopulationIterator __first,
    _PopulationSentinel __last,
    _SampleIterator __output_iter,
    _Distance __n,
    _UniformRandomNumberGenerator& __g,
    forward_iterator_tag) { … }

template <class _AlgPolicy,
          class _PopulationIterator,
          class _PopulationSentinel,
          class _SampleIterator,
          class _Distance,
          class _UniformRandomNumberGenerator>
_LIBCPP_HIDE_FROM_ABI _SampleIterator __sample(
    _PopulationIterator __first,
    _PopulationSentinel __last,
    _SampleIterator __output_iter,
    _Distance __n,
    _UniformRandomNumberGenerator& __g) { … }

#if _LIBCPP_STD_VER >= 17
template <class _PopulationIterator, class _SampleIterator, class _Distance, class _UniformRandomNumberGenerator>
inline _LIBCPP_HIDE_FROM_ABI _SampleIterator
sample(_PopulationIterator __first,
       _PopulationIterator __last,
       _SampleIterator __output_iter,
       _Distance __n,
       _UniformRandomNumberGenerator&& __g) { … }

#endif // _LIBCPP_STD_VER >= 17

_LIBCPP_END_NAMESPACE_STD

_LIBCPP_POP_MACROS

#endif // _LIBCPP___ALGORITHM_SAMPLE_H