The combination of compound literals and variadic macros is indeed pretty neat. It can also be used to implement Java-style variadic functions (ie when the vari

The combination of compound literals and variadic macros is indeed pretty neat. It can also be used to implement Java-style variadic functions (ie when the variadic parameters have a single type): #define sum(...) \ sum_(sizeof ((int []){ __VA_ARGS__ }) / sizeof (int), (int []){ __VA_ARGS__ }) int sum_(size_t count, int values[]) { int s = 0; while(count--) s += values[count]; return s; } You'd call the macro as int s = sum(1, -32, 5);