7 #define X2(X) C2(X, X)  argument
8 #define X4(X) X2(X2(X))  argument
9 #define X8(X) X2(X4(X))  argument
10 #define X16(X) X2(X8(X))  argument
11 #define X32(X) X2(X16(X))  argument
12 #define X64(X) X2(X32(X))  argument
13 #define X128(X) X2(X64(X))  argument
14 #define X256(X) X2(X128(X))  argument
15 #define X512(X) X2(X256(X))  argument
16 #define X1024(X) X2(X512(X))  argument
17 #define X2048(X) X2(X1024(X))  argument
18 #define X4096(X) X2(X2048(X))  argument
20 #define X4095(X)                                \  argument
55 #define X4088(X)                                \  argument
66 #define X4089(X)                                \  argument