cpython/Include/dtoa.h

#ifndef Py_LIMITED_API
#ifndef PY_NO_SHORT_FLOAT_REPR
#ifdef __cplusplus
extern "C" {
#endif

PyAPI_FUNC(double) _Py_dg_strtod(const char *str, char **ptr);
PyAPI_FUNC(char *) _Py_dg_dtoa(double d, int mode, int ndigits,
                        int *decpt, int *sign, char **rve);
PyAPI_FUNC(void) _Py_dg_freedtoa(char *s);
PyAPI_FUNC(double) _Py_dg_stdnan(int sign);
PyAPI_FUNC(double) _Py_dg_infinity(int sign);


#ifdef __cplusplus
}
#endif
#endif
#endif
Merge branches/pep-0384. 2010-12-04 04:14:31 +08:00			`#ifndef Py_LIMITED_API`
Issue #1580: use short float repr where possible. - incorporate and adapt David Gay's dtoa and strtod into the Python core - on platforms where we can use Gay's code (almost all!), repr(float) is based on the shortest sequence of decimal digits that rounds correctly. - add sys.float_repr_style attribute to indicate whether we're using Gay's code or not - add autoconf magic to detect and enable SSE2 instructions on x86/gcc - slight change to repr and str: repr switches to exponential notation at 1e16 instead of 1e17, str switches at 1e11 instead of 1e12 2009-04-17 03:52:09 +08:00			`#ifndef PY_NO_SHORT_FLOAT_REPR`
			`#ifdef __cplusplus`
			`extern "C" {`
			`#endif`

			`PyAPI_FUNC(double) _Py_dg_strtod(const char str, char *ptr);`
			`PyAPI_FUNC(char *) _Py_dg_dtoa(double d, int mode, int ndigits,`
			`int decpt, int sign, char **rve);`
			`PyAPI_FUNC(void) _Py_dg_freedtoa(char *s);`
Issue #14521: Make result of float('nan') and float('-nan') more consistent across platforms. Further, don't rely on Py_HUGE_VAL for float('inf'). 2012-04-29 22:31:56 +08:00			`PyAPI_FUNC(double) _Py_dg_stdnan(int sign);`
			`PyAPI_FUNC(double) _Py_dg_infinity(int sign);`
Issue #1580: use short float repr where possible. - incorporate and adapt David Gay's dtoa and strtod into the Python core - on platforms where we can use Gay's code (almost all!), repr(float) is based on the shortest sequence of decimal digits that rounds correctly. - add sys.float_repr_style attribute to indicate whether we're using Gay's code or not - add autoconf magic to detect and enable SSE2 instructions on x86/gcc - slight change to repr and str: repr switches to exponential notation at 1e16 instead of 1e17, str switches at 1e11 instead of 1e12 2009-04-17 03:52:09 +08:00

			`#ifdef __cplusplus`
			`}`
			`#endif`
			`#endif`
Merge branches/pep-0384. 2010-12-04 04:14:31 +08:00			`#endif`