[Python-checkins] cpython: Issue #28152: Fix -Wunreachable-code warning on clang
victor.stinner
python-checkins at python.org
Mon Dec 5 12:03:13 EST 2016
https://hg.python.org/cpython/rev/7c7055305f69
changeset: 105464:7c7055305f69
user: Victor Stinner <victor.stinner at gmail.com>
date: Mon Dec 05 18:00:42 2016 +0100
summary:
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.
files:
Modules/_multiprocessing/multiprocessing.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/Modules/_multiprocessing/multiprocessing.c b/Modules/_multiprocessing/multiprocessing.c
--- 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);
--
Repository URL: https://hg.python.org/cpython
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