[R]

1. RAND_MAX
2. RCTRL
3. READ
4. READA
5. READY_STAT
6. READ_10
7. READ_6
8. READ_CAPACITY
9. REASSIGN_BLOCKS
10. RECIEVE_DAIGNOSTIC
11. RECOVERED_ERROR
12. REDO
13. REG
14. RELEASE
15. REQUEST_SENSE
16. REQ_CMDOUT
17. REQ_DATAIN
18. REQ_DATAOUT
19. REQ_MASK
20. REQ_MSGIN
21. REQ_MSGOUT
22. REQ_STATIN
23. RESERVATION_CONFLICT
24. RESERVE
25. RESET_TIMEOUT
26. RESPONSE
27. RESTORE_POINTERS
28. REZERO_UNIT
29. RLIMIT_CORE
30. RLIMIT_CPU
31. RLIMIT_DATA
32. RLIMIT_FSIZE
33. RLIMIT_MEMLOCK
34. RLIMIT_NPROC
35. RLIMIT_OFILE
36. RLIMIT_RSS
37. RLIMIT_STACK
38. RLIM_INFINITY
39. RLIM_NLIMITS
40. ROUNDING
41. ROUND_0
42. ROUND_DOWN
43. ROUND_NEAREST
44. ROUND_UP
45. RSHIFT
46. RUSAGE_CHILDREN
47. RUSAGE_SELF
48. R_OK