2 sscanf
("12345", "%ld", &x) => 1, x = 12345
3 sscanf
("12345", "%llllld", &x) => 0, x = -1
4 sscanf
("12345", "%LLLLLd", &x) => 0, x = -1
5 sscanf
("test ", "%*s%n", &x) => 0, x = 4
6 sscanf
("test ", "%2*s%n", &x) => 0, x = -1
7 sscanf
("12 ", "%l2d", &x) => 0, x = -1
8 sscanf
("12 ", "%2ld", &x) => 1, x = 12
