FM / util

/usr/local/lib64/python3.6/site-packages/torch/include/c10/util/

/usr/local/lib64/python3.6/site-packages/torch/include/c10/util

Name	Size	Mode	Actions
accumulate.h	4205	0644	edit dl rm
AlignOf.h	4835	0644	edit dl rm
Array.h	11354	0644	edit dl rm
ArrayRef.h	9058	0644	edit dl rm
Backtrace.h	364	0644	edit dl rm
BFloat16-inl.h	9222	0644	edit dl rm
BFloat16-math.h	5217	0644	edit dl rm
BFloat16.h	2372	0644	edit dl rm
Bitset.h	3414	0644	edit dl rm
C++17.h	13329	0644	edit dl rm
complex.h	17542	0644	edit dl rm
complex_math.h	10902	0644	edit dl rm
complex_utils.h	958	0644	edit dl rm
ConstexprCrc.h	6633	0644	edit dl rm
copysign.h	866	0644	edit dl rm
DeadlockDetection.h	1920	0644	edit dl rm
Deprecated.h	3579	0644	edit dl rm
either.h	6423	0644	edit dl rm
env.h	835	0644	edit dl rm
Exception.h	24723	0644	edit dl rm
ExclusivelyOwned.h	4759	0644	edit dl rm
Flags.h	10056	0644	edit dl rm
flat_hash_map.h	61655	0644	edit dl rm
FunctionRef.h	2301	0644	edit dl rm
Half-inl.h	8674	0644	edit dl rm
Half.h	18965	0644	edit dl rm
hash.h	5084	0644	edit dl rm
IdWrapper.h	2348	0644	edit dl rm
intrusive_ptr.h	35563	0644	edit dl rm
in_place.h	350	0644	edit dl rm
irange.h	2679	0644	edit dl rm
LeftRight.h	6016	0644	edit dl rm
llvmMathExtras.h	29168	0644	edit dl rm
Logging.h	11256	0644	edit dl rm
logging_is_google_glog.h	2031	0644	edit dl rm
logging_is_not_google_glog.h	8271	0644	edit dl rm
MathConstants.h	858	0644	edit dl rm
math_compat.h	7296	0644	edit dl rm
MaybeOwned.h	6689	0644	edit dl rm
Metaprogramming.h	15288	0644	edit dl rm
numa.h	696	0644	edit dl rm
Optional.h	35592	0644	edit dl rm
order_preserving_flat_hash_map.h	65482	0644	edit dl rm
overloaded.h	709	0644	edit dl rm
python_stub.h	56	0644	edit dl rm
qint8.h	472	0644	edit dl rm
qint32.h	319	0644	edit dl rm
quint4x2.h	366	0644	edit dl rm
quint8.h	320	0644	edit dl rm
Registry.h	12242	0644	edit dl rm
reverse_iterator.h	8796	0644	edit dl rm
ScopeExit.h	1345	0644	edit dl rm
signal_handler.h	3154	0644	edit dl rm
SmallBuffer.h	1243	0644	edit dl rm
SmallVector.h	34456	0644	edit dl rm
sparse_bitset.h	26511	0644	edit dl rm
StringUtil.h	4538	0644	edit dl rm
string_utils.h	3989	0644	edit dl rm
string_view.h	20189	0644	edit dl rm
tempfile.h	6029	0644	edit dl rm
ThreadLocal.h	3883	0644	edit dl rm
ThreadLocalDebugInfo.h	2603	0644	edit dl rm
thread_name.h	148	0644	edit dl rm
Type.h	607	0644	edit dl rm
TypeCast.h	6972	0644	edit dl rm
typeid.h	18793	0644	edit dl rm
TypeIndex.h	5251	0644	edit dl rm
TypeList.h	16901	0644	edit dl rm
TypeTraits.h	5368	0644	edit dl rm
Unicode.h	295	0644	edit dl rm
UniqueVoidPtr.h	4117	0644	edit dl rm
Unroll.h	667	0644	edit dl rm
variant.h	95182	0644	edit dl rm
win32-headers.h	858	0644	edit dl rm

Edit: /usr/local/lib64/python3.6/site-packages/torch/include/c10/util/Array.h (11354B)

/**
 * This file is based on the std::array implementation of libstdc++ at
 * https://gcc.gnu.org/onlinedocs/gcc-7.1.0/libstdc++/api/a01056_source.html
 *
 * Changes:
 *  - isolate, i.e. remove dependencies on internal libstdc++ stuff
 *  - use c++17 behavior even in c++11 or c++14
 *  - remove std::swappable special case because that doesn't work with MSVC
 *  - constexpr more things
 *  - add some features like prepend/tail
 *
 * If using std::array at runtime, feel free to either keep using std::array or
 * use this one - it doesn't really matter. For compile time computations, this
 * one here is preferred because std::array in C++11 misses some constexpr
 * specifiers, forcing these methods to be called at runtime instead of compile
 * time.
 */

// Copyright (C) 2007-2017 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

#pragma once

#include <c10/util/C++17.h>
#include <algorithm>
#include <stdexcept>
#include <string>
#include <utility>

namespace c10 {
namespace guts {

namespace detail {
template <typename _Tp, std::size_t _Nm>
struct __array_traits final {
  using _Type = _Tp[_Nm];

static constexpr _Tp& _S_ref(const _Type& __t, std::size_t __n) noexcept {
    return const_cast<_Tp&>(__t[__n]);
  }

static constexpr _Tp* _S_ptr(const _Type& __t) noexcept {
    return const_cast<_Tp*>(__t);
  }
};

template <typename _Tp>
struct __array_traits<_Tp, 0> final {
  struct _Type final {};

static constexpr _Tp& _S_ref(const _Type& __t, std::size_t) noexcept {
    return *_S_ptr(__t);
  }

static constexpr _Tp* _S_ptr(const _Type&) noexcept {
    return nullptr;
  }
};

[[noreturn]] inline void __throw_out_of_range(std::string msg) {
  throw std::out_of_range(std::move(msg));
}
} // namespace detail

template <typename _Tp, std::size_t _Nm>
class array final {
 public:
  using value_type = _Tp;
  using pointer = value_type*;
  using const_pointer = const value_type*;
  using reference = value_type&;
  using const_reference = const value_type&;
  using iterator = value_type*;
  using const_iterator = const value_type*;
  using size_type = std::size_t;
  using difference_type = std::ptrdiff_t;
  using reverse_iterator = std::reverse_iterator<iterator>;
  using const_reverse_iterator = std::reverse_iterator<const_iterator>;

private:
  using _AT_Type = detail::__array_traits<_Tp, _Nm>;

public: // needs to be public member for aggregate initialization
  typename _AT_Type::_Type _M_elems;

public:
  // No explicit construct/copy/destroy for aggregate type.

// DR 776.
  constexpr void fill(const value_type& __u) {
    std::fill_n(begin(), size(), __u);
  }

constexpr void swap(array& __other) {
    std::swap_ranges(begin(), end(), __other.begin());
  }

// Iterators.
  constexpr iterator begin() noexcept {
    return iterator(data());
  }

constexpr const_iterator begin() const noexcept {
    return const_iterator(data());
  }

constexpr iterator end() noexcept {
    return iterator(data() + _Nm);
  }

constexpr const_iterator end() const noexcept {
    return const_iterator(data() + _Nm);
  }

constexpr reverse_iterator rbegin() noexcept {
    return reverse_iterator(end());
  }

constexpr const_reverse_iterator rbegin() const noexcept {
    return const_reverse_iterator(end());
  }

constexpr reverse_iterator rend() noexcept {
    return reverse_iterator(begin());
  }

constexpr const_reverse_iterator rend() const noexcept {
    return const_reverse_iterator(begin());
  }

constexpr const_iterator cbegin() const noexcept {
    return const_iterator(data());
  }

constexpr const_iterator cend() const noexcept {
    return const_iterator(data() + _Nm);
  }

constexpr const_reverse_iterator crbegin() const noexcept {
    return const_reverse_iterator(end());
  }

constexpr const_reverse_iterator crend() const noexcept {
    return const_reverse_iterator(begin());
  }

// Capacity.
  constexpr size_type size() const noexcept {
    return _Nm;
  }

constexpr size_type max_size() const noexcept {
    return _Nm;
  }

constexpr bool empty() const noexcept {
    return size() == 0;
  }

// Element access.
  constexpr reference operator[](size_type __n) noexcept {
    return _AT_Type::_S_ref(_M_elems, __n);
  }

constexpr const_reference operator[](size_type __n) const noexcept {
    return _AT_Type::_S_ref(_M_elems, __n);
  }

constexpr reference at(size_type __n) {
    if (__n >= _Nm) {
      detail::__throw_out_of_range(
          std::string() + "array::at: __n (which is " + to_string(__n) + ") " +
          ">= _Nm (which is " + to_string(_Nm) + ")");
    }
    return _AT_Type::_S_ref(_M_elems, __n);
  }

constexpr const_reference at(size_type __n) const {
    // Result of conditional expression must be an lvalue so use
    // boolean ? lvalue : (throw-expr, lvalue)
    return __n < _Nm
        ? _AT_Type::_S_ref(_M_elems, __n)
        : (detail::__throw_out_of_range(
               std::string() + "array::at: __n (which is " + to_string(__n) +
               ") " + ">= _Nm (which is " + to_string(_Nm) + ")"),
           _AT_Type::_S_ref(_M_elems, 0));
  }

constexpr reference front() noexcept {
    return *begin();
  }

constexpr const_reference front() const noexcept {
    return _AT_Type::_S_ref(_M_elems, 0);
  }

constexpr reference back() noexcept {
    return _Nm ? *(end() - 1) : *end();
  }

constexpr const_reference back() const noexcept {
    return _Nm ? _AT_Type::_S_ref(_M_elems, _Nm - 1)
               : _AT_Type::_S_ref(_M_elems, 0);
  }

constexpr pointer data() noexcept {
    return _AT_Type::_S_ptr(_M_elems);
  }

constexpr const_pointer data() const noexcept {
    return _AT_Type::_S_ptr(_M_elems);
  }
};

#if defined(__cpp_deduction_guides) && __cpp_deduction_guides >= 201606
template <typename _Tp, typename... _Up>
array(_Tp, _Up...) -> array<
    std::enable_if_t<(std::is_same<_Tp, _Up>::value && ...), _Tp>,
    1 + sizeof...(_Up)>;
#endif

// Array comparisons.
namespace detail {
template <class T, size_t N>
constexpr inline bool array_equals_(
    const array<T, N>& lhs,
    const array<T, N>& rhs,
    size_t current_index) {
  return (current_index == N)
      ? true
      : (lhs.at(current_index) == rhs.at(current_index) &&
         array_equals_(lhs, rhs, current_index + 1));
}
template <class T, size_t N>
constexpr inline bool array_less_(
    const array<T, N>& lhs,
    const array<T, N>& rhs,
    size_t current_index) {
  return (current_index == N)
      ? false
      : (lhs.at(current_index) < rhs.at(current_index) ||
         array_less_(lhs, rhs, current_index + 1));
}
} // namespace detail
template <typename _Tp, std::size_t _Nm>
constexpr inline bool operator==(
    const array<_Tp, _Nm>& __one,
    const array<_Tp, _Nm>& __two) {
  return detail::array_equals_(__one, __two, 0);
}

template <typename _Tp, std::size_t _Nm>
constexpr inline bool operator!=(
    const array<_Tp, _Nm>& __one,
    const array<_Tp, _Nm>& __two) {
  return !(__one == __two);
}

template <typename _Tp, std::size_t _Nm>
constexpr inline bool operator<(
    const array<_Tp, _Nm>& __a,
    const array<_Tp, _Nm>& __b) {
  return detail::array_less_(__a, __b, 0);
}

template <typename _Tp, std::size_t _Nm>
constexpr inline bool operator>(
    const array<_Tp, _Nm>& __one,
    const array<_Tp, _Nm>& __two) {
  return __two < __one;
}

template <typename _Tp, std::size_t _Nm>
constexpr inline bool operator<=(
    const array<_Tp, _Nm>& __one,
    const array<_Tp, _Nm>& __two) {
  return !(__one > __two);
}

template <typename _Tp, std::size_t _Nm>
constexpr inline bool operator>=(
    const array<_Tp, _Nm>& __one,
    const array<_Tp, _Nm>& __two) {
  return !(__one < __two);
}

// Specialized algorithms.
template <typename _Tp, std::size_t _Nm>
inline void swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two) noexcept(
    noexcept(__one.swap(__two))) {
  __one.swap(__two);
}

template <std::size_t _Int, typename _Tp, std::size_t _Nm>
constexpr _Tp& get(array<_Tp, _Nm>& __arr) noexcept {
  static_assert(_Int < _Nm, "array index is within bounds");
  return detail::__array_traits<_Tp, _Nm>::_S_ref(__arr._M_elems, _Int);
}

template <std::size_t _Int, typename _Tp, std::size_t _Nm>
constexpr _Tp&& get(array<_Tp, _Nm>&& __arr) noexcept {
  static_assert(_Int < _Nm, "array index is within bounds");
  return std::move(get<_Int>(__arr));
}

template <std::size_t _Int, typename _Tp, std::size_t _Nm>
constexpr const _Tp& get(const array<_Tp, _Nm>& __arr) noexcept {
  static_assert(_Int < _Nm, "array index is within bounds");
  return detail::__array_traits<_Tp, _Nm>::_S_ref(__arr._M_elems, _Int);
}

/**
 * Some added features not available in std::array.
 * Only call these at compile time, they're slow if called at runtime.
 * Examples:
 *  tail({2, 3, 4}) == {3, 4}
 *  prepend(2, {3, 4}) == {2, 3, 4}
 */
namespace detail {
template <class T, size_t N, size_t... INDEX>
constexpr inline array<T, N - 1> tail_(
    const array<T, N>& arg,
    std::index_sequence<INDEX...>) {
  static_assert(sizeof...(INDEX) == N - 1, "invariant");
  return {{get<INDEX + 1>(arg)...}};
}
} // namespace detail
template <class T, size_t N>
constexpr inline array<T, N - 1> tail(const array<T, N>& arg) {
  static_assert(
      N > 0, "Can only call tail() on an array with at least one element");
  return detail::tail_(arg, std::make_index_sequence<N - 1>());
}

namespace detail {
template <class T, size_t N, size_t... INDEX>
constexpr inline array<T, N + 1> prepend_(
    T&& head,
    const array<T, N>& tail,
    std::index_sequence<INDEX...>) {
  return {{std::forward<T>(head), get<INDEX>(tail)...}};
}
} // namespace detail
template <class T, size_t N>
constexpr inline array<T, N + 1> prepend(T&& head, const array<T, N>& tail) {
  return detail::prepend_(
      std::forward<T>(head), tail, std::make_index_sequence<N>());
}

/**
 * Convert a C array into a std::array.
 * Example:
 *   int source[3] = {2, 3, 4};
 *   std::array<int, 3> target = to_std_array(source);
 */

namespace detail {
template <class T, size_t N, size_t... INDEX>
constexpr array<T, N> to_array_(
    const T (&arr)[N],
    std::index_sequence<INDEX...>) {
  return {{arr[INDEX]...}};
}
} // namespace detail

template <class T, size_t N>
constexpr array<T, N> to_array(const T (&arr)[N]) {
  return detail::to_array_(arr, std::make_index_sequence<N>());
}

} // namespace guts
} // namespace c10

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