3 #define debug(s, t) printf("x" # s "= %d, x" # t "= %s", \
5 #define INCFILE(n) vers ## n // Comment
6 #define glue(a,b) a ## b
7 #define xglue(a,b) glue(a,b)
8 #define HIGHLOW "hello"
9 #define LOW LOW ", world"
12 fputs (str (strncmp("abc\0d", "abc", '\4') // Comment
13 == 0) str (: @\n), s);