ISCHR
#define ISCHR(A) ((A.st_mode & S_IFMT) == S_IFCHR)
#define ISCHR(A) ((A.st_mode & S_IFMT) == S_IFCHR)
#define ISCHR(A) ((A.st_mode & S_IFMT) == S_IFCHR)
#define ISCHR(A) ((A.st_mode & S_IFMT) == S_IFCHR)