[O]

[..]
  1. OBSTACK_CHUNK_ALLOC
  2. OBSTACK_CHUNK_FREE
  3. OBSTACK_CHUNK_SIZE
  4. OCF_RA_PATH
  5. OCF_ROOT_DIR
  6. OFFLINESTATUS
  7. OFFSET
  8. OFFSET_MAX
  9. OK_LEAF_OPTIMIZATION
  10. OLD_ACE_GROUP
  11. OLD_ACE_OTHER
  12. OLD_ACE_OWNER
  13. OLD_ALLOW
  14. OLD_DENY
  15. ONCE_FLAG_INIT
  16. ONE
  17. ONLINESTATUS
  18. OP
  19. OPAD
  20. OPENAT_BUFFER_SIZE
  21. OPENSSL_ALG
  22. OPENSSL_FN
  23. OPEN_MAX_MAX
  24. OPSIZ
  25. OPTARGS
  26. OPTIND_MIN
  27. OPTION_ALIAS
  28. OPTION_ARG_OPTIONAL
  29. OPTION_DOC
  30. OPTION_HIDDEN
  31. OPTION_NO_TRANS
  32. OPTION_NO_USAGE
  33. OPT_DOC_COL
  34. OPT_HANG
  35. OPT_LPAREN
  36. OPT_PROGNAME
  37. OPT_QUEUED
  38. OPT_REPEAT
  39. OPT_RPAREN
  40. OPT_USAGE
  41. OPT_WALKED
  42. OP_ALT
  43. OP_BACK_REF
  44. OP_CHARSET_RANGE
  45. OP_CLOSE_BRACKET
  46. OP_CLOSE_CHAR_CLASS
  47. OP_CLOSE_COLL_ELEM
  48. OP_CLOSE_DUP_NUM
  49. OP_CLOSE_EQUIV_CLASS
  50. OP_CLOSE_SUBEXP
  51. OP_DUP_ASTERISK
  52. OP_DUP_PLUS
  53. OP_DUP_QUESTION
  54. OP_NON_MATCH_LIST
  55. OP_NOTSPACE
  56. OP_NOTWORD
  57. OP_OPEN_BRACKET
  58. OP_OPEN_CHAR_CLASS
  59. OP_OPEN_COLL_ELEM
  60. OP_OPEN_DUP_NUM
  61. OP_OPEN_EQUIV_CLASS
  62. OP_OPEN_SUBEXP
  63. OP_PERIOD
  64. OP_SPACE
  65. OP_T_THRES
  66. OP_UTF8_PERIOD
  67. OP_WORD
  68. OR
  69. OS2
  70. OSET_TREE_FLAVOR
  71. OSF_ALPHA
  72. OSF_MIPS
  73. OSVERSIONINFO
  74. OUR_NODENAME
  75. OVERLOADED_CHECK
  76. O_ACCMODE
  77. O_BINARY
  78. O_CIB_RESTART
  79. O_CLOEXEC
  80. O_DC_TIMER_RESTART
  81. O_DIRECT
  82. O_DIRECTORY
  83. O_DSYNC
  84. O_EXEC
  85. O_EXIT
  86. O_IGNORE_CTTY
  87. O_LARGEFILE
  88. O_LRM_RECONNECT
  89. O_NDELAY
  90. O_NOATIME
  91. O_NOCTTY
  92. O_NOFOLLOW
  93. O_NOLINK
  94. O_NOLINKS
  95. O_NONBLOCK
  96. O_NOTRANS
  97. O_PE_RESTART
  98. O_RELEASE
  99. O_RSYNC
  100. O_SEARCH
  101. O_SYNC
  102. O_TEXT
  103. O_TE_RESTART
  104. O_TTY_INIT
[..]