typedef int ssize_t; typedef int pid_t; typedef int *intptr_t; #define SEEK_SET 0 #define STDIN_FILENO 0 #define STDOUT_FILENO 1 #define SEEK_CUR 1 #define _SC_CLK_TCK 2 #define SEEK_END 2 #define STDERR_FILENO 2 #define _SC_OPEN_MAX 4 #define F_OK 0 #define X_OK 1 #define W_OK 2 #define R_OK 4 |