+#define is_signed(type) (((type) -1) < (type) 1)
+
+#define member_sizeof(type, field) sizeof(((type *) 0)->field)
+
+#define ASSERT_LOCKED(lock) LTTNG_ASSERT(pthread_mutex_trylock(&lock))
+
+/* Attribute suitable to tag functions as having printf()-like arguments. */
+#define ATTR_FORMAT_PRINTF(_string_index, _first_to_check) \
+ __attribute__((format(printf, _string_index, _first_to_check)))
+
+/* Attribute suitable to tag functions as having strftime()-like arguments. */
+#define ATTR_FORMAT_STRFTIME(_string_index) \
+ __attribute__((format(strftime, _string_index, 0)))
+
+/* Macros used to ignore specific compiler diagnostics. */
+
+#define DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push")
+#define DIAGNOSTIC_POP _Pragma("GCC diagnostic pop")
+
+#if defined(__clang__)
+ /* Clang */
+# define DIAGNOSTIC_IGNORE_SUGGEST_ATTRIBUTE_FORMAT
+# define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
+ _Pragma("GCC diagnostic ignored \"-Wformat-nonliteral\"")
+#else
+ /* GCC */
+# define DIAGNOSTIC_IGNORE_SUGGEST_ATTRIBUTE_FORMAT \
+ _Pragma("GCC diagnostic ignored \"-Wsuggest-attribute=format\"")
+# define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
+ _Pragma("GCC diagnostic ignored \"-Wformat-nonliteral\"")