Caffe2 - C++ API
A deep learning, cross platform ML framework
THTensor.h
1 #ifndef TH_GENERIC_FILE
2 #define TH_GENERIC_FILE "TH/generic/THTensor.h"
3 #else
4 
5 /* a la lua? dim, storageoffset, ... et les methodes ? */
6 
7 #include <c10/core/TensorImpl.h>
8 
9 #define THTensor at::TensorImpl
10 
11 // These used to be distinct types; for some measure of backwards compatibility and documentation
12 // alias these to the single THTensor type.
13 #define THFloatTensor THTensor
14 #define THDoubleTensor THTensor
15 #define THHalfTensor THTensor
16 #define THByteTensor THTensor
17 #define THCharTensor THTensor
18 #define THShortTensor THTensor
19 #define THIntTensor THTensor
20 #define THLongTensor THTensor
21 #define THBoolTensor THTensor
22 
23 /**** access methods ****/
24 TH_API THStorage* THTensor_(storage)(const THTensor *self);
25 TH_API ptrdiff_t THTensor_(storageOffset)(const THTensor *self);
26 
27 // See [NOTE: nDimension vs nDimensionLegacyNoScalars vs nDimensionLegacyAll]
28 TH_API int THTensor_(nDimension)(const THTensor *self);
29 TH_API int THTensor_(nDimensionLegacyNoScalars)(const THTensor *self);
30 TH_API int THTensor_(nDimensionLegacyAll)(const THTensor *self);
31 TH_API int64_t THTensor_(size)(const THTensor *self, int dim);
32 TH_API int64_t THTensor_(stride)(const THTensor *self, int dim);
33 TH_API scalar_t *THTensor_(data)(const THTensor *self);
34 
35 
36 /**** creation methods ****/
37 TH_API THTensor *THTensor_(new)(void);
38 TH_API THTensor *THTensor_(newWithTensor)(THTensor *tensor);
39 TH_API THTensor *THTensor_(newWithStorage1d)(THStorage *storage_, ptrdiff_t storageOffset_,
40  int64_t size0_, int64_t stride0_);
41 TH_API THTensor *THTensor_(newWithStorage2d)(THStorage *storage_, ptrdiff_t storageOffset_,
42  int64_t size0_, int64_t stride0_,
43  int64_t size1_, int64_t stride1_);
44 TH_API THTensor *THTensor_(newWithStorage3d)(THStorage *storage_, ptrdiff_t storageOffset_,
45  int64_t size0_, int64_t stride0_,
46  int64_t size1_, int64_t stride1_,
47  int64_t size2_, int64_t stride2_);
48 TH_API THTensor *THTensor_(newWithStorage4d)(THStorage *storage_, ptrdiff_t storageOffset_,
49  int64_t size0_, int64_t stride0_,
50  int64_t size1_, int64_t stride1_,
51  int64_t size2_, int64_t stride2_,
52  int64_t size3_, int64_t stride3_);
53 
54 /* stride might be NULL */
55 TH_API THTensor *THTensor_(newWithSize1d)(int64_t size0_);
56 TH_API THTensor *THTensor_(newWithSize2d)(int64_t size0_, int64_t size1_);
57 TH_API THTensor *THTensor_(newWithSize3d)(int64_t size0_, int64_t size1_, int64_t size2_);
58 TH_API THTensor *THTensor_(newWithSize4d)(int64_t size0_, int64_t size1_, int64_t size2_, int64_t size3_);
59 
60 TH_API THTensor *THTensor_(newClone)(THTensor *self);
61 TH_API THTensor *THTensor_(newContiguous)(THTensor *tensor);
62 TH_API THTensor *THTensor_(newSelect)(THTensor *tensor, int dimension_, int64_t sliceIndex_);
63 TH_API THTensor *THTensor_(newNarrow)(THTensor *tensor, int dimension_, int64_t firstIndex_, int64_t size_);
64 TH_API THTensor *THTensor_(newTranspose)(THTensor *tensor, int dimension1_, int dimension2_);
65 TH_API THTensor *THTensor_(newUnfold)(THTensor *tensor, int dimension_, int64_t size_, int64_t step_);
66 
67 // resize* methods simply resize the storage. So they may not retain the current data at current indices.
68 // This is especially likely to happen when the tensor is not contiguous. In general, if you still need the
69 // values, unless you are doing some size and stride tricks, do not use resize*.
70 TH_API void THTensor_(resizeNd)(THTensor *tensor, int nDimension, const int64_t *size, const int64_t *stride);
71 TH_API void THTensor_(resizeAs)(THTensor *tensor, THTensor *src);
72 TH_API void THTensor_(resize0d)(THTensor *tensor);
73 TH_API void THTensor_(resize1d)(THTensor *tensor, int64_t size0_);
74 TH_API void THTensor_(resize2d)(THTensor *tensor, int64_t size0_, int64_t size1_);
75 TH_API void THTensor_(resize3d)(THTensor *tensor, int64_t size0_, int64_t size1_, int64_t size2_);
76 TH_API void THTensor_(resize4d)(THTensor *tensor, int64_t size0_, int64_t size1_, int64_t size2_, int64_t size3_);
77 TH_API void THTensor_(resize5d)(THTensor *tensor, int64_t size0_, int64_t size1_, int64_t size2_, int64_t size3_, int64_t size4_);
78 // Note: these are legacy resize functions that treat sizes as size->size() == 0 and size->data<int64_t>() as being 0-terminated.
79 
80 TH_API void THTensor_(set)(THTensor *self, THTensor *src);
81 TH_API void THTensor_(setStorageNd)(THTensor *self, THStorage *storage_, ptrdiff_t storageOffset_, int nDimension, const int64_t *size, const int64_t *stride);
82 TH_API void THTensor_(setStorage1d)(THTensor *self, THStorage *storage_, ptrdiff_t storageOffset_,
83  int64_t size0_, int64_t stride0_);
84 TH_API void THTensor_(setStorage2d)(THTensor *self, THStorage *storage_, ptrdiff_t storageOffset_,
85  int64_t size0_, int64_t stride0_,
86  int64_t size1_, int64_t stride1_);
87 TH_API void THTensor_(setStorage3d)(THTensor *self, THStorage *storage_, ptrdiff_t storageOffset_,
88  int64_t size0_, int64_t stride0_,
89  int64_t size1_, int64_t stride1_,
90  int64_t size2_, int64_t stride2_);
91 TH_API void THTensor_(setStorage4d)(THTensor *self, THStorage *storage_, ptrdiff_t storageOffset_,
92  int64_t size0_, int64_t stride0_,
93  int64_t size1_, int64_t stride1_,
94  int64_t size2_, int64_t stride2_,
95  int64_t size3_, int64_t stride3_);
96 
97 TH_API void THTensor_(narrow)(THTensor *self, THTensor *src, int dimension_, int64_t firstIndex_, int64_t size_);
98 TH_API void THTensor_(select)(THTensor *self, THTensor *src, int dimension_, int64_t sliceIndex_);
99 TH_API void THTensor_(transpose)(THTensor *self, THTensor *src, int dimension1_, int dimension2_);
100 TH_API int THTensor_(isTransposed)(const THTensor *self);
101 TH_API void THTensor_(unfold)(THTensor *self, THTensor *src, int dimension_, int64_t size_, int64_t step_);
102 
103 TH_API void THTensor_(squeeze)(THTensor *self, THTensor *src);
104 TH_API void THTensor_(squeeze1d)(THTensor *self, THTensor *src, int dimension_);
105 TH_API void THTensor_(unsqueeze1d)(THTensor *self, THTensor *src, int dimension_);
106 
107 TH_API int THTensor_(isContiguous)(const THTensor *self);
108 TH_API int THTensor_(isSameSizeAs)(const THTensor *self, const THTensor *src);
109 TH_API int THTensor_(isSetTo)(const THTensor *self, const THTensor *src);
110 TH_API ptrdiff_t THTensor_(nElement)(const THTensor *self);
111 
112 TH_API void THTensor_(retain)(THTensor *self);
113 TH_API void THTensor_(free)(THTensor *self);
114 TH_API void THTensor_(freeCopyTo)(THTensor *self, THTensor *dst);
115 
116 /* Slow access methods [check everything] */
117 TH_API void THTensor_(set0d)(THTensor *tensor, scalar_t value);
118 TH_API void THTensor_(set1d)(THTensor *tensor, int64_t x0, scalar_t value);
119 TH_API void THTensor_(set2d)(THTensor *tensor, int64_t x0, int64_t x1, scalar_t value);
120 TH_API void THTensor_(set3d)(THTensor *tensor, int64_t x0, int64_t x1, int64_t x2, scalar_t value);
121 TH_API void THTensor_(set4d)(THTensor *tensor, int64_t x0, int64_t x1, int64_t x2, int64_t x3, scalar_t value);
122 
123 TH_API scalar_t THTensor_(get0d)(const THTensor *tensor);
124 TH_API scalar_t THTensor_(get1d)(const THTensor *tensor, int64_t x0);
125 TH_API scalar_t THTensor_(get2d)(const THTensor *tensor, int64_t x0, int64_t x1);
126 TH_API scalar_t THTensor_(get3d)(const THTensor *tensor, int64_t x0, int64_t x1, int64_t x2);
127 TH_API scalar_t THTensor_(get4d)(const THTensor *tensor, int64_t x0, int64_t x1, int64_t x2, int64_t x3);
128 
129 /* Shape manipulation methods */
130 TH_API void THTensor_(cat)(THTensor *r_, THTensor *ta, THTensor *tb, int dimension);
131 TH_API void THTensor_(catArray)(THTensor *result, THTensor **inputs, int numInputs, int dimension);
132 
133 /* Debug methods */
134 TH_API THDescBuff THTensor_(desc)(const THTensor *tensor);
135 TH_API THDescBuff THTensor_(sizeDesc)(const THTensor *tensor);
136 
137 #endif
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