Avoid potential C compiler warnings.

280ac943 · Stefan Behnel · ccfeb817 · 280ac943
Commit 280ac943 authored Aug 25, 2017 by Stefan Behnel
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Cython/Utility/Coroutine.c Cython/Utility/Coroutine.c +1 -1

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--- a/Cython/Utility/Coroutine.c
+++ b/Cython/Utility/Coroutine.c
@@ -907,7 +907,7 @@ static PyObject *__Pyx_Coroutine_Close(PyObject *self) {
    if (unlikely(retval)) {
        const char *msg;
        Py_DECREF(retval);
-        if (0) {
+        if ((0)) {
        #ifdef __Pyx_Coroutine_USED
        } else if (__Pyx_Coroutine_CheckExact(self)) {
            msg = "coroutine ignored GeneratorExit";