mirror of
https://github.com/python/cpython.git
synced 2025-10-31 13:41:24 +00:00
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
#ifndef Py_INTERNAL_LONG_H
|
|
#define Py_INTERNAL_LONG_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifndef Py_BUILD_CORE
|
|
# error "this header requires Py_BUILD_CORE define"
|
|
#endif
|
|
|
|
#include "pycore_interp.h" // PyInterpreterState.small_ints
|
|
#include "pycore_pystate.h" // _PyThreadState_GET()
|
|
|
|
// Don't call this function but _PyLong_GetZero() and _PyLong_GetOne()
|
|
static inline PyObject* __PyLong_GetSmallInt_internal(int value)
|
|
{
|
|
PyInterpreterState *interp = _PyInterpreterState_GET();
|
|
assert(-_PY_NSMALLNEGINTS <= value && value < _PY_NSMALLPOSINTS);
|
|
size_t index = _PY_NSMALLNEGINTS + value;
|
|
PyObject *obj = (PyObject*)interp->small_ints[index];
|
|
// _PyLong_GetZero(), _PyLong_GetOne() and get_small_int() must not be
|
|
// called before _PyLong_Init() nor after _PyLong_Fini().
|
|
assert(obj != NULL);
|
|
return obj;
|
|
}
|
|
|
|
// Return a borrowed reference to the zero singleton.
|
|
// The function cannot return NULL.
|
|
static inline PyObject* _PyLong_GetZero(void)
|
|
{ return __PyLong_GetSmallInt_internal(0); }
|
|
|
|
// Return a borrowed reference to the one singleton.
|
|
// The function cannot return NULL.
|
|
static inline PyObject* _PyLong_GetOne(void)
|
|
{ return __PyLong_GetSmallInt_internal(1); }
|
|
|
|
PyObject *_PyLong_Add(PyLongObject *left, PyLongObject *right);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_INTERNAL_LONG_H */
|