Sep 17, 2024 · Sep 17, 2024 · Sep 17, 2024 · Sep 17, 2024 · Sep 17, 2024 · Sep 17, 2024
diff --git a/Modules/_math.h b/Modules/_math.h
 }

 #define m_log1p _Py_log1p

 static double
 _Py_fmod(double x, double y)
 {
    /* Some platforms (e.g. Windows 10 with MSC v.1916) loose sign
       for zero result.  But C99+ says: "if y is nonzero, the result
       has the same sign as x".
     */
    double r = fmod(x, y);

    if (r == 0.0 && y != 0.0) {
        r = copysign(r, x);
    }

    return r;
 }
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
    if (isinf(y) && isfinite(x))
        return PyFloat_FromDouble(x);
    errno = 0;
    r = _Py_fmod(x, y);
    r = fmod(x, y);
    /* Some platforms (e.g. Windows 10 with MSC v.1916) loose sign
       for zero result.  But C99+ says: "if y is nonzero, the result
       has the same sign as x".
     */
    if (r == 0.0 && y != 0.0) {
        r = copysign(r, x);
    }
    if (isnan(r)) {
        if (!isnan(x) && !isnan(y))
            errno = EDOM;
Original file line number	Diff line number	Diff line change
Expand Up		@@ -23,19 +23,3 @@ _Py_log1p(double x)
		}

		#define m_log1p _Py_log1p

		static double
		_Py_fmod(double x, double y)
		{
		/* Some platforms (e.g. Windows 10 with MSC v.1916) loose sign
		for zero result. But C99+ says: "if y is nonzero, the result
		has the same sign as x".
		*/
		double r = fmod(x, y);

		if (r == 0.0 && y != 0.0) {
		r = copysign(r, x);
		}

		return r;
		}
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2347,7 +2347,14 @@ math_fmod_impl(PyObject *module, double x, double y)
		if (isinf(y) && isfinite(x))
		return PyFloat_FromDouble(x);
		errno = 0;
		r = _Py_fmod(x, y);
		r = fmod(x, y);
		/* Some platforms (e.g. Windows 10 with MSC v.1916) loose sign
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		for zero result. But C99+ says: "if y is nonzero, the result
		has the same sign as x".
		*/
		if (r == 0.0 && y != 0.0) {
		r = copysign(r, x);
		}
		if (isnan(r)) {
		if (!isnan(x) && !isnan(y))
		errno = EDOM;
Expand Down