From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Tue, 8 Oct 2013 21:33:55 +0000 (-0400)
Subject: gcc warning fix: -Wextra
X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=commitdiff_plain;h=refs%2Fheads%2Fstable-1.0;hp=be59aa1005711f38937aaf0f727374b4d092b354

gcc warning fix: -Wextra

For the "ordered comparison of pointer with integer zero" warning, fix
this by comparing (type) -1 against (type) 0 instead of just 0, so if
"type" is a pointer type, this pointer type will be applied to the right
operand too, thus fixing the warning.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/include/babeltrace/bitfield.h b/include/babeltrace/bitfield.h
index 40c11614..b7fce093 100644
--- a/include/babeltrace/bitfield.h
+++ b/include/babeltrace/bitfield.h
@@ -57,7 +57,7 @@
 	___v <<= final;							\
 })
 
-#define _bt_is_signed_type(type)	(((type)(-1)) < 0)
+#define _bt_is_signed_type(type)	((type) -1 < (type) 0)
 
 #define _bt_unsigned_cast(type, v)					\
 ({									\