FM / core

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

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

Name	Size	Mode	Actions
impl/	-	0755	rm
Allocator.h	8725	0644	edit dl rm
AutogradState.h	994	0644	edit dl rm
Backend.h	8487	0644	edit dl rm
CompileTimeFunctionPointer.h	1677	0644	edit dl rm
CopyBytes.h	1229	0644	edit dl rm
CPUAllocator.h	2267	0644	edit dl rm
DefaultDtype.h	394	0644	edit dl rm
DefaultTensorOptions.h	1032	0644	edit dl rm
Device.h	5396	0644	edit dl rm
DeviceGuard.h	7555	0644	edit dl rm
DeviceType.h	2994	0644	edit dl rm
DispatchKey.h	18069	0644	edit dl rm
DispatchKeySet.h	12951	0644	edit dl rm
Event.h	4169	0644	edit dl rm
GeneratorImpl.h	3713	0644	edit dl rm
GradMode.h	1261	0644	edit dl rm
InferenceMode.h	3471	0644	edit dl rm
Layout.h	1225	0644	edit dl rm
MemoryFormat.h	8571	0644	edit dl rm
OptionalRef.h	521	0644	edit dl rm
QEngine.h	861	0644	edit dl rm
QScheme.h	1562	0644	edit dl rm
Scalar.h	6019	0644	edit dl rm
ScalarType.h	17073	0644	edit dl rm
ScalarTypeToTypeMeta.h	1365	0644	edit dl rm
Storage.h	4369	0644	edit dl rm
StorageImpl.h	5610	0644	edit dl rm
Stream.h	7373	0644	edit dl rm
StreamGuard.h	6315	0644	edit dl rm
TensorImpl.h	96152	0644	edit dl rm
TensorOptions.h	27593	0644	edit dl rm
thread_pool.h	2992	0644	edit dl rm
UndefinedTensorImpl.h	911	0644	edit dl rm
WrapDimMinimal.h	805	0644	edit dl rm

Edit: /usr/local/lib64/python3.6/site-packages/torch/include/c10/core/Scalar.h (6019B)

#pragma once

#include <assert.h>
#include <stdint.h>
#include <stdexcept>
#include <string>
#include <type_traits>
#include <utility>

#include <c10/core/OptionalRef.h>
#include <c10/core/ScalarType.h>
#include <c10/macros/Macros.h>
#include <c10/util/Exception.h>
#include <c10/util/Half.h>
#include <c10/util/TypeCast.h>

namespace c10 {

/**
 * Scalar represents a 0-dimensional tensor which contains a single element.
 * Unlike a tensor, numeric literals (in C++) are implicitly convertible to
 * Scalar (which is why, for example, we provide both add(Tensor) and
 * add(Scalar) overloads for many operations). It may also be used in
 * circumstances where you statically know a tensor is 0-dim and single size,
 * but don't know its type.
 */
class C10_API Scalar {
 public:
  Scalar() : Scalar(int64_t(0)) {}

#define DEFINE_IMPLICIT_CTOR(type, name) \
  Scalar(type vv) : Scalar(vv, true) {}

AT_FORALL_SCALAR_TYPES_AND2(Half, BFloat16, DEFINE_IMPLICIT_CTOR)
  AT_FORALL_COMPLEX_TYPES(DEFINE_IMPLICIT_CTOR)

#undef DEFINE_IMPLICIT_CTOR

// Value* is both implicitly convertible to SymbolicVariable and bool which
  // causes ambiguity error. Specialized constructor for bool resolves this
  // problem.
  template <
      typename T,
      typename std::enable_if<std::is_same<T, bool>::value, bool>::type* =
          nullptr>
  Scalar(T vv) : tag(Tag::HAS_b) {
    v.i = convert<int64_t, bool>(vv);
  }

#define DEFINE_ACCESSOR(type, name)                                   \
  type to##name() const {                                             \
    if (Tag::HAS_d == tag) {                                          \
      return checked_convert<type, double>(v.d, #type);               \
    } else if (Tag::HAS_z == tag) {                                   \
      return checked_convert<type, c10::complex<double>>(v.z, #type); \
    }                                                                 \
    if (Tag::HAS_b == tag) {                                          \
      return checked_convert<type, bool>(v.i, #type);                 \
    } else {                                                          \
      return checked_convert<type, int64_t>(v.i, #type);              \
    }                                                                 \
  }

// TODO: Support ComplexHalf accessor
  AT_FORALL_SCALAR_TYPES_WITH_COMPLEX_EXCEPT_COMPLEX_HALF(DEFINE_ACCESSOR)

// also support scalar.to<int64_t>();
  // Deleted for unsupported types, but specialized below for supported types
  template <typename T>
  T to() const = delete;

#undef DEFINE_ACCESSOR
  bool isFloatingPoint() const {
    return Tag::HAS_d == tag;
  }

C10_DEPRECATED_MESSAGE(
      "isIntegral is deprecated. Please use the overload with 'includeBool' parameter instead.")
  bool isIntegral() const {
    return Tag::HAS_i == tag;
  }
  bool isIntegral(bool includeBool) const {
    return Tag::HAS_i == tag || (includeBool && isBoolean());
  }

bool isComplex() const {
    return Tag::HAS_z == tag;
  }
  bool isBoolean() const {
    return Tag::HAS_b == tag;
  }

Scalar operator-() const;
  Scalar conj() const;
  Scalar log() const;

template <
      typename T,
      typename std::enable_if<!c10::is_complex<T>::value, int>::type = 0>
  bool equal(T num) const {
    if (isComplex()) {
      auto val = v.z;
      return (val.real() == num) && (val.imag() == T());
    } else if (isFloatingPoint()) {
      return v.d == num;
    } else if (isIntegral(/*includeBool=*/false)) {
      return v.i == num;
    } else {
      // boolean scalar does not equal to a non boolean value
      return false;
    }
  }

template <
      typename T,
      typename std::enable_if<c10::is_complex<T>::value, int>::type = 0>
  bool equal(T num) const {
    if (isComplex()) {
      return v.z == num;
    } else if (isFloatingPoint()) {
      return (v.d == num.real()) && (num.imag() == T());
    } else if (isIntegral(/*includeBool=*/false)) {
      return (v.i == num.real()) && (num.imag() == T());
    } else {
      // boolean scalar does not equal to a non boolean value
      return false;
    }
  }

bool equal(bool num) const {
    if (isBoolean()) {
      return static_cast<bool>(v.i) == num;
    } else {
      return false;
    }
  }

ScalarType type() const {
    if (isComplex()) {
      return ScalarType::ComplexDouble;
    } else if (isFloatingPoint()) {
      return ScalarType::Double;
    } else if (isIntegral(/*includeBool=*/false)) {
      return ScalarType::Long;
    } else if (isBoolean()) {
      return ScalarType::Bool;
    } else {
      throw std::runtime_error("Unknown scalar type.");
    }
  }

private:
  template <
      typename T,
      typename std::enable_if<
          std::is_integral<T>::value && !std::is_same<T, bool>::value,
          bool>::type* = nullptr>
  Scalar(T vv, bool) : tag(Tag::HAS_i) {
    v.i = convert<decltype(v.i), T>(vv);
  }

template <
      typename T,
      typename std::enable_if<
          !std::is_integral<T>::value && !c10::is_complex<T>::value,
          bool>::type* = nullptr>
  Scalar(T vv, bool) : tag(Tag::HAS_d) {
    v.d = convert<decltype(v.d), T>(vv);
  }

template <
      typename T,
      typename std::enable_if<c10::is_complex<T>::value, bool>::type* = nullptr>
  Scalar(T vv, bool) : tag(Tag::HAS_z) {
    v.z = convert<decltype(v.z), T>(vv);
  }

// We can't set v in the initializer list using the
  // syntax v{ .member = ... } because it doesn't work on MSVC

enum class Tag { HAS_d, HAS_i, HAS_z, HAS_b };
  Tag tag;
  union v_t {
    double d;
    int64_t i;
    c10::complex<double> z;
    v_t() {} // default constructor
  } v;
};

using OptionalScalarRef = c10::OptionalRef<Scalar>;

// define the scalar.to<int64_t>() specializations
#define DEFINE_TO(T, name)         \
  template <>                      \
  inline T Scalar::to<T>() const { \
    return to##name();             \
  }
AT_FORALL_SCALAR_TYPES_WITH_COMPLEX_EXCEPT_COMPLEX_HALF(DEFINE_TO)
#undef DEFINE_TO

} // namespace c10

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