bpo-42323: Fix math.nextafter() on AIX (GH-24381)

vstinner · web-flow · commit 0837f99d3367 · 2021-01-29T23:04:50.000+01:00
math_nextafter_impl() must return a Python object, not a C double.
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
@@ -3474,10 +3474,10 @@ math_nextafter_impl(PyObject *module, double x, double y)
         return PyFloat_FromDouble(y);
     }
     if (Py_IS_NAN(x)) {
-        return x;
+        return PyFloat_FromDouble(x);
     }
     if (Py_IS_NAN(y)) {
-        return y;
+        return PyFloat_FromDouble(y);
     }
 #endif
     return PyFloat_FromDouble(nextafter(x, y));

Original file line number	Diff line number	Diff line change
`@@ -3474,10 +3474,10 @@ math_nextafter_impl(PyObject *module, double x, double y)`
`3474`	`3474`	`return PyFloat_FromDouble(y);`
`3475`	`3475`	`}`
`3476`	`3476`	`if (Py_IS_NAN(x)) {`
`3477`		`- return x;`
	`3477`	`+ return PyFloat_FromDouble(x);`
`3478`	`3478`	`}`
`3479`	`3479`	`if (Py_IS_NAN(y)) {`
`3480`		`- return y;`
	`3480`	`+ return PyFloat_FromDouble(y);`
`3481`	`3481`	`}`
`3482`	`3482`	`#endif`
`3483`	`3483`	`return PyFloat_FromDouble(nextafter(x, y));`