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/hash.h (5084B)

#pragma once

#include <c10/util/ArrayRef.h>
#include <c10/util/complex.h>
#include <functional>
#include <vector>
namespace c10 {

// NOTE: hash_combine is based on implementation from Boost
//
// Boost Software License - Version 1.0 - August 17th, 2003
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

inline size_t hash_combine(size_t seed, size_t value) {
  return seed ^ (value + 0x9e3779b9 + (seed << 6u) + (seed >> 2u));
}

////////////////////////////////////////////////////////////////////////////////
// c10::hash implementation
////////////////////////////////////////////////////////////////////////////////

namespace _hash_detail {

// Use template argument deduction to shorten calls to c10::hash
template <typename T>
size_t simple_get_hash(const T& o);

template <typename T, typename V>
using type_if_not_enum =
    typename std::enable_if<!std::is_enum<T>::value, V>::type;

// Use SFINAE to dispatch to std::hash if possible, cast enum types to int
// automatically, and fall back to T::hash otherwise. NOTE: C++14 added support
// for hashing enum types to the standard, and some compilers implement it even
// when C++14 flags aren't specified. This is why we have to disable this
// overload if T is an enum type (and use the one below in this case).
template <typename T>
auto dispatch_hash(const T& o)
    -> decltype(std::hash<T>()(o), type_if_not_enum<T, size_t>()) {
  return std::hash<T>()(o);
}

template <typename T>
typename std::enable_if<std::is_enum<T>::value, size_t>::type dispatch_hash(
    const T& o) {
  using R = typename std::underlying_type<T>::type;
  return std::hash<R>()(static_cast<R>(o));
}

template <typename T>
auto dispatch_hash(const T& o) -> decltype(T::hash(o), size_t()) {
  return T::hash(o);
}

} // namespace _hash_detail

// Hasher struct
template <typename T>
struct hash {
  size_t operator()(const T& o) const {
    return _hash_detail::dispatch_hash(o);
  };
};

// Specialization for std::tuple
template <typename... Types>
struct hash<std::tuple<Types...>> {
  template <size_t idx, typename... Ts>
  struct tuple_hash {
    size_t operator()(const std::tuple<Ts...>& t) const {
      return hash_combine(
          _hash_detail::simple_get_hash(std::get<idx>(t)),
          tuple_hash<idx - 1, Ts...>()(t));
    }
  };

template <typename... Ts>
  struct tuple_hash<0, Ts...> {
    size_t operator()(const std::tuple<Ts...>& t) const {
      return _hash_detail::simple_get_hash(std::get<0>(t));
    }
  };

size_t operator()(const std::tuple<Types...>& t) const {
    return tuple_hash<sizeof...(Types) - 1, Types...>()(t);
  }
};

template <typename T>
struct hash<c10::ArrayRef<T>> {
  size_t operator()(c10::ArrayRef<T> v) const {
    size_t seed = 0;
    for (const auto& elem : v) {
      seed = hash_combine(seed, _hash_detail::simple_get_hash(elem));
    }
    return seed;
  }
};

// Specialization for std::vector
template <typename T>
struct hash<std::vector<T>> {
  size_t operator()(const std::vector<T>& v) const {
    return hash<c10::ArrayRef<T>>()(v);
  }
};

namespace _hash_detail {

template <typename T>
size_t simple_get_hash(const T& o) {
  return c10::hash<T>()(o);
}

} // namespace _hash_detail

// Use this function to actually hash multiple things in one line.
// Dispatches to c10::hash, so it can hash containers.
// Example:
//
// static size_t hash(const MyStruct& s) {
//   return get_hash(s.member1, s.member2, s.member3);
// }
template <typename... Types>
size_t get_hash(const Types&... args) {
  return c10::hash<decltype(std::tie(args...))>()(std::tie(args...));
}

// Specialization for c10::complex
template <typename T>
struct hash<c10::complex<T>> {
  size_t operator()(const c10::complex<T>& c) const {
    return get_hash(c.real(), c.imag());
  }
};

} // namespace c10

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