diff --git a/src/util/macrohax.h b/src/util/macrohax.h
index 722f26a5..bf082cbc 100644
--- a/src/util/macrohax.h
+++ b/src/util/macrohax.h
@@ -21,4 +21,36 @@
 #define MACROHAX_ADDLINENUM(a) MACROHAX_EXPAND(MACROHAX_DEFER(MACROHAX_CONCAT)(a, __LINE__))
 #define MACROHAX_STRINGIFY(x) #x
 
+// Expands to 0 if argument list is empty, 1 otherwise.
+// Up to 32 arguments supported.
+#define MACROHAX_HASARGS(...)  \
+	MACROHAX_EXPAND(MACROHAX_DEFER(MACROHAX_ARGCOUNT_HELPER)(\
+		_, ##__VA_ARGS__, MACROHAX_HASARGS_RSEQ_N() \
+	))
+
+// Expands to the number of its arguments.
+// Up to 32 arguments supported.
+#define MACROHAX_NARGS(...)  \
+	MACROHAX_EXPAND(MACROHAX_DEFER(MACROHAX_ARGCOUNT_HELPER)(\
+		_, ##__VA_ARGS__, MACROHAX_NARGS_RSEQ_N() \
+	))
+
+#define MACROHAX_HASARGS_RSEQ_N() \
+	1, 1, 1, 1, 1, 1, 1, 1, \
+	1, 1, 1, 1, 1, 1, 1, 1, \
+	1, 1, 1, 1, 1, 1, 1, 1, \
+	1, 1, 1, 1, 1, 1, 1, 1, 0,
+
+#define MACROHAX_NARGS_RSEQ_N() \
+	32, 31, 30, 29, 28, 27, 26, 25,  \
+	24, 23, 22, 21, 20, 19, 18, 17,  \
+	16, 15, 14, 13, 12, 11, 10,  9,  \
+	 8,  7,  6,  5,  4,  3,  2,  1,  0,
+
+#define MACROHAX_ARGCOUNT_HELPER(_0, \
+	__1, __2, __3, __4, __5, __6, __7, __8, \
+	__9, _10, _11, _12, _13, _14, _15, _16, \
+	_17, _18, _19, _20, _21, _22, _23, _24, \
+	_25, _26, _27, _28, _29, _30, _31, _32, N, ...) N
+
 #endif // IGUARD_util_macrohax_h