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#pragma once
#include <Python.h>
#define _CONCAT(A, B) A##B
#define CONCAT(A, B) _CONCAT(A, B)
#define _STRINGIFY(A) #A
#define STRINGIFY(A) _STRINGIFY(A)
// A version of the TORCH_LIBRARY macro that expands the NAME, i.e. so NAME
// could be a macro instead of a literal token.
#define TORCH_LIBRARY_EXPAND(NAME, MODULE) TORCH_LIBRARY(NAME, MODULE)
// A version of the TORCH_LIBRARY_IMPL macro that expands the NAME, i.e. so NAME
// could be a macro instead of a literal token.
#define TORCH_LIBRARY_IMPL_EXPAND(NAME, DEVICE, MODULE) \
TORCH_LIBRARY_IMPL(NAME, DEVICE, MODULE)
// REGISTER_EXTENSION allows the shared library to be loaded and initialized
// via python's import statement.
#define REGISTER_EXTENSION(NAME) \
PyMODINIT_FUNC CONCAT(PyInit_, NAME)() { \
static struct PyModuleDef module = {PyModuleDef_HEAD_INIT, \
STRINGIFY(NAME), nullptr, 0, nullptr}; \
return PyModule_Create(&module); \
}
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