mirror of https://github.com/python/cpython
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
#ifndef Py_INTERNAL_LONG_H
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#define Py_INTERNAL_LONG_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "this header requires Py_BUILD_CORE define"
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#endif
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#include "pycore_interp.h" // PyInterpreterState.small_ints
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#include "pycore_pystate.h" // _PyThreadState_GET()
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// Don't call this function but _PyLong_GetZero() and _PyLong_GetOne()
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static inline PyObject* __PyLong_GetSmallInt_internal(int value)
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{
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PyInterpreterState *interp = _PyInterpreterState_GET();
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assert(-_PY_NSMALLNEGINTS <= value && value < _PY_NSMALLPOSINTS);
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size_t index = _PY_NSMALLNEGINTS + value;
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PyObject *obj = (PyObject*)interp->small_ints[index];
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// _PyLong_GetZero(), _PyLong_GetOne() and get_small_int() must not be
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// called before _PyLong_Init() nor after _PyLong_Fini().
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assert(obj != NULL);
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return obj;
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}
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// Return a borrowed reference to the zero singleton.
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// The function cannot return NULL.
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static inline PyObject* _PyLong_GetZero(void)
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{ return __PyLong_GetSmallInt_internal(0); }
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// Return a borrowed reference to the one singleton.
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// The function cannot return NULL.
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static inline PyObject* _PyLong_GetOne(void)
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{ return __PyLong_GetSmallInt_internal(1); }
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PyObject *_PyLong_Add(PyLongObject *left, PyLongObject *right);
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PyObject *_PyLong_Multiply(PyLongObject *left, PyLongObject *right);
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/* Used by Python/mystrtoul.c, _PyBytes_FromHex(),
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_PyBytes_DecodeEscape(), etc. */
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PyAPI_DATA(unsigned char) _PyLong_DigitValue[256];
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/* Format the object based on the format_spec, as defined in PEP 3101
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(Advanced String Formatting). */
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PyAPI_FUNC(int) _PyLong_FormatAdvancedWriter(
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_PyUnicodeWriter *writer,
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PyObject *obj,
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PyObject *format_spec,
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Py_ssize_t start,
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Py_ssize_t end);
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PyAPI_FUNC(int) _PyLong_FormatWriter(
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_PyUnicodeWriter *writer,
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PyObject *obj,
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int base,
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int alternate);
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PyAPI_FUNC(char*) _PyLong_FormatBytesWriter(
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_PyBytesWriter *writer,
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char *str,
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PyObject *obj,
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int base,
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int alternate);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_INTERNAL_LONG_H */
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