mirror of
https://github.com/python/cpython.git
synced 2024-12-21 07:45:30 +08:00
bf9655854b
Only define fallback implementations when needed. It avoids producing deadcode when the system provides required math functions.
42 lines
1007 B
C
42 lines
1007 B
C
#ifdef HAVE_ACOSH
|
|
# define m_acosh acosh
|
|
#else
|
|
/* if the system doesn't have acosh, use the substitute
|
|
function defined in Modules/_math.c. */
|
|
double _Py_acosh(double x);
|
|
# define m_acosh _Py_acosh
|
|
#endif
|
|
|
|
#ifdef HAVE_ASINH
|
|
# define m_asinh asinh
|
|
#else
|
|
/* if the system doesn't have asinh, use the substitute
|
|
function defined in Modules/_math.c. */
|
|
double _Py_asinh(double x);
|
|
# define m_asinh _Py_asinh
|
|
#endif
|
|
|
|
#ifdef HAVE_ATANH
|
|
# define m_atanh atanh
|
|
#else
|
|
/* if the system doesn't have atanh, use the substitute
|
|
function defined in Modules/_math.c. */
|
|
double _Py_atanh(double x);
|
|
#define m_atanh _Py_atanh
|
|
#endif
|
|
|
|
#ifdef HAVE_EXPM1
|
|
# define m_expm1 expm1
|
|
#else
|
|
/* if the system doesn't have expm1, use the substitute
|
|
function defined in Modules/_math.c. */
|
|
double _Py_expm1(double x);
|
|
#define m_expm1 _Py_expm1
|
|
#endif
|
|
|
|
double _Py_log1p(double x);
|
|
|
|
/* Use the substitute from _math.c on all platforms:
|
|
it includes workarounds for buggy handling of zeros. */
|
|
#define m_log1p _Py_log1p
|