Issue #28152: Fix -Wunreachable-code warning on clang
Replace 0 with (0) to ignore a compiler warning about dead code on
"((int)(SEM_VALUE_MAX) < 0)": SEM_VALUE_MAX is not negative on Linux.
diff --git a/Modules/_multiprocessing/multiprocessing.c b/Modules/_multiprocessing/multiprocessing.c
index d92a8bf..bb65b3b 100644
--- a/Modules/_multiprocessing/multiprocessing.c
+++ b/Modules/_multiprocessing/multiprocessing.c
@@ -171,8 +171,11 @@
{
PyObject *py_sem_value_max;
/* Some systems define SEM_VALUE_MAX as an unsigned value that
- * causes it to be negative when used as an int (NetBSD). */
- if ((int)(SEM_VALUE_MAX) < 0)
+ * causes it to be negative when used as an int (NetBSD).
+ *
+ * Issue #28152: Use (0) instead of 0 to fix a warning on dead code
+ * when using clang -Wunreachable-code. */
+ if ((int)(SEM_VALUE_MAX) < (0))
py_sem_value_max = PyLong_FromLong(INT_MAX);
else
py_sem_value_max = PyLong_FromLong(SEM_VALUE_MAX);