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bpo-39288: Add math.nextafter(x, y) (GH-17937)

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Return the next floating-point value after x towards y.
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Victor Stinner 2020-01-12 02:15:42 +01:00 • committed by GitHub
parent 1b335ae281
commit 100fafcf20
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6 changed files with 140 additions and 1 deletions
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20
Modules/mathmodule.c
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@ -3295,6 +3295,25 @@ error:
}
/*[clinic input]
math.nextafter
x: double
y: double
/
Return the next floating-point value after x towards y.
[clinic start generated code]*/
static PyObject *
math_nextafter_impl(PyObject *module, double x, double y)
/*[clinic end generated code: output=750c8266c1c540ce input=02b2d50cd1d9f9b6]*/
{
double f = nextafter(x, y);
return PyFloat_FromDouble(f);
}
static PyMethodDef math_methods[] = {
{"acos", math_acos, METH_O, math_acos_doc},
{"acosh", math_acosh, METH_O, math_acosh_doc},
@ -3346,6 +3365,7 @@ static PyMethodDef math_methods[] = {
MATH_PROD_METHODDEF
MATH_PERM_METHODDEF
MATH_COMB_METHODDEF
MATH_NEXTAFTER_METHODDEF
{NULL, NULL} /* sentinel */
};