1 #define A(x) C(B, D
2 #define D A(1))
3 #define C(x,y) E(y)
4 #define E(y) #y
5 A(2))
6 /*
7  * check-name: Preprocessor #7
8  * check-command: sparse -E $file
9  *
10  * check-output-start
11 
12 "\"D\""
13  * check-output-end
14  */
15