vidya7732/AI_Doctor_LLM_GenModel

1 2/* Float object interface */3 4/*5PyFloatObject represents a (double precision) floating point number.6*/7 8#ifndef Py_FLOATOBJECT_H9#define Py_FLOATOBJECT_H10#ifdef __cplusplus11extern "C" {12#endif13 14#ifndef Py_LIMITED_API15typedef struct {16    PyObject_HEAD17    double ob_fval;18} PyFloatObject;19#endif20 21PyAPI_DATA(PyTypeObject) PyFloat_Type;22 23#define PyFloat_Check(op) PyObject_TypeCheck(op, &PyFloat_Type)24#define PyFloat_CheckExact(op) Py_IS_TYPE(op, &PyFloat_Type)25 26#ifdef Py_NAN27#define Py_RETURN_NAN return PyFloat_FromDouble(Py_NAN)28#endif29 30#define Py_RETURN_INF(sign) do                     \31    if (copysign(1., sign) == 1.) {                \32        return PyFloat_FromDouble(Py_HUGE_VAL);    \33    } else {                        \34        return PyFloat_FromDouble(-Py_HUGE_VAL);   \35    } while(0)36 37PyAPI_FUNC(double) PyFloat_GetMax(void);38PyAPI_FUNC(double) PyFloat_GetMin(void);39PyAPI_FUNC(PyObject *) PyFloat_GetInfo(void);40 41/* Return Python float from string PyObject. */42PyAPI_FUNC(PyObject *) PyFloat_FromString(PyObject*);43 44/* Return Python float from C double. */45PyAPI_FUNC(PyObject *) PyFloat_FromDouble(double);46 47/* Extract C double from Python float.  The macro version trades safety for48   speed. */49PyAPI_FUNC(double) PyFloat_AsDouble(PyObject *);50#ifndef Py_LIMITED_API51#define PyFloat_AS_DOUBLE(op) (((PyFloatObject *)(op))->ob_fval)52#endif53 54#ifndef Py_LIMITED_API55/* _PyFloat_{Pack,Unpack}{4,8}56 *57 * The struct and pickle (at least) modules need an efficient platform-58 * independent way to store floating-point values as byte strings.59 * The Pack routines produce a string from a C double, and the Unpack60 * routines produce a C double from such a string.  The suffix (4 or 8)61 * specifies the number of bytes in the string.62 *63 * On platforms that appear to use (see _PyFloat_Init()) IEEE-754 formats64 * these functions work by copying bits.  On other platforms, the formats the65 * 4- byte format is identical to the IEEE-754 single precision format, and66 * the 8-byte format to the IEEE-754 double precision format, although the67 * packing of INFs and NaNs (if such things exist on the platform) isn't68 * handled correctly, and attempting to unpack a string containing an IEEE69 * INF or NaN will raise an exception.70 *71 * On non-IEEE platforms with more precision, or larger dynamic range, than72 * 754 supports, not all values can be packed; on non-IEEE platforms with less73 * precision, or smaller dynamic range, not all values can be unpacked.  What74 * happens in such cases is partly accidental (alas).75 */76 77/* The pack routines write 2, 4 or 8 bytes, starting at p.  le is a bool78 * argument, true if you want the string in little-endian format (exponent79 * last, at p+1, p+3 or p+7), false if you want big-endian format (exponent80 * first, at p).81 * Return value:  0 if all is OK, -1 if error (and an exception is82 * set, most likely OverflowError).83 * There are two problems on non-IEEE platforms:84 * 1):  What this does is undefined if x is a NaN or infinity.85 * 2):  -0.0 and +0.0 produce the same string.86 */87PyAPI_FUNC(int) _PyFloat_Pack2(double x, unsigned char *p, int le);88PyAPI_FUNC(int) _PyFloat_Pack4(double x, unsigned char *p, int le);89PyAPI_FUNC(int) _PyFloat_Pack8(double x, unsigned char *p, int le);90 91/* The unpack routines read 2, 4 or 8 bytes, starting at p.  le is a bool92 * argument, true if the string is in little-endian format (exponent93 * last, at p+1, p+3 or p+7), false if big-endian (exponent first, at p).94 * Return value:  The unpacked double.  On error, this is -1.0 and95 * PyErr_Occurred() is true (and an exception is set, most likely96 * OverflowError).  Note that on a non-IEEE platform this will refuse97 * to unpack a string that represents a NaN or infinity.98 */99PyAPI_FUNC(double) _PyFloat_Unpack2(const unsigned char *p, int le);100PyAPI_FUNC(double) _PyFloat_Unpack4(const unsigned char *p, int le);101PyAPI_FUNC(double) _PyFloat_Unpack8(const unsigned char *p, int le);102 103PyAPI_FUNC(void) _PyFloat_DebugMallocStats(FILE* out);104 105/* Format the object based on the format_spec, as defined in PEP 3101106   (Advanced String Formatting). */107PyAPI_FUNC(int) _PyFloat_FormatAdvancedWriter(108    _PyUnicodeWriter *writer,109    PyObject *obj,110    PyObject *format_spec,111    Py_ssize_t start,112    Py_ssize_t end);113#endif /* Py_LIMITED_API */114 115#ifdef __cplusplus116}117#endif118#endif /* !Py_FLOATOBJECT_H */119