X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=include%2Flttng%2Fust-utils.h;h=13d2a7ae1a3049d6815b707320977604678ea2be;hb=3d33ca1d93088e049c36fc0f417d130bc66b2231;hp=23d1a07c01081aa55e7279c86d6915b495c271f2;hpb=eae3c72949135b48639440468dc78ea1d5e937e9;p=lttng-ust.git

diff --git a/include/lttng/ust-utils.h b/include/lttng/ust-utils.h
index 23d1a07c..13d2a7ae 100644
--- a/include/lttng/ust-utils.h
+++ b/include/lttng/ust-utils.h
@@ -28,7 +28,11 @@
  *
  * Returns true if the type of @type is signed.
  */
-#define lttng_ust_is_signed_type(type)           ((type) -1 < (type) 1)
+#if defined(__cplusplus)
+#define lttng_ust_is_signed_type(type)	(std::is_signed<type>::value)
+#else
+#define lttng_ust_is_signed_type(type)	((type) -1 < (type) 1)
+#endif
 
 
 /**
@@ -42,6 +46,7 @@
 #define lttng_ust_is_integer_type(type) \
 		(__builtin_types_compatible_p(type, _Bool) || \
 		__builtin_types_compatible_p(type, char) || \
+		__builtin_types_compatible_p(type, signed char) || \
 		__builtin_types_compatible_p(type, unsigned char) || \
 		__builtin_types_compatible_p(type, short) || \
 		__builtin_types_compatible_p(type, unsigned short) || \
@@ -60,9 +65,9 @@
  * user are of an integral type.
  */
 #define lttng_ust_ctf_array_element_type_is_supported(type, item) \
-		lttng_static_assert(lttng_ust_is_integer_type(type), \
+		lttng_ust_static_assert(lttng_ust_is_integer_type(type), \
 			"Non-integer type `" #item "` not supported as element of CTF_ARRAY or CTF_SEQUENCE", \
-			Non_integer_type__##item##__not_supported_as_element_of_CTF_ARRAY_or_CTF_SEQUENCE);
+			Non_integer_type__##item##__not_supported_as_element_of_CTF_ARRAY_or_CTF_SEQUENCE)
 
 
 /**