compiler warning cleanup: is_signed_type: compare -1 to 1

[lttng-tools.git] / src / common / macros.h

diff --git a/src/common/macros.h b/src/common/macros.h
index e52d7f7712764751d81aea4c69ce39856c7d9994..70de2875e1007278019b5460b80cc453ad5a70ea 100644 (file)
--- a/src/common/macros.h
+++ b/src/common/macros.h
@@ -77,6 +77,8 @@ void *zmalloc(size_t len)
 #define LTTNG_PACKED __attribute__((__packed__))
 #endif
 
+#define is_signed(type) (((type) -1) < (type) 1)
+
 /*
  * Align value to the next multiple of align. Returns val if it already is a
  * multiple of align. Align must be a power of two.