int sched_getaffinity(pid_t, size_t, cpu_set_t *);
int sched_setaffinity(pid_t, size_t, const cpu_set_t *);
-#define __CPU_op_S(i, size, set, op) ( (i)/8 >= (size) ? 0 : \
+#define __CPU_op_S(i, size, set, op) ( (i)/8U >= (size) ? 0 : \
((set)->__bits[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) )
#define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=)
#define WSTOPSIG(s) WEXITSTATUS(s)
#define WIFEXITED(s) (!WTERMSIG(s))
#define WIFSTOPPED(s) ((short)((((s)&0xffff)*0x10001)>>8) > 0x7f00)
-#define WIFSIGNALED(s) (((s)&0xffff)-1 < 0xffu)
+#define WIFSIGNALED(s) (((s)&0xffff)-1U < 0xffu)
int posix_memalign (void **, size_t, size_t);
int setenv (const char *, const char *, int);
#define WCOREDUMP(s) ((s) & 0x80)
#define WIFEXITED(s) (!WTERMSIG(s))
#define WIFSTOPPED(s) ((short)((((s)&0xffff)*0x10001)>>8) > 0x7f00)
-#define WIFSIGNALED(s) (((s)&0xffff)-1 < 0xffu)
+#define WIFSIGNALED(s) (((s)&0xffff)-1U < 0xffu)
#define WIFCONTINUED(s) ((s) == 0xffff)
#ifdef __cplusplus