1. Список говнокодов пользователя vertexua

    Всего: 1

  2. Куча / Говнокод #5627

    +124

    1. 01
    2. 02
    3. 03
    4. 04
    5. 05
    6. 06
    7. 07
    8. 08
    9. 09
    10. 10
    11. 11
    12. 12
    13. 13
    14. 14
    15. 15
    16. 16
    17. 17
    18. 18
    19. 19
    20. 20
    21. 21
    22. 22
    23. 23
    24. 24
    25. 25
    26. 26
    27. 27
    28. 28
    29. 29
    30. 30
    31. 31
    32. 32
    33. 33
    34. 34
    35. 35
    36. 36
    37. 37
    38. 38
    39. 39
    40. 40
    41. 41
    42. 42
    43. 43
    44. 44
    45. 45
    46. 46
    47. 47
    48. 48
    49. 49
    50. 50
    51. 51
    52. 52
    53. 53
    54. 54
    55. 55
    56. 56
    57. 57
    58. 58
    59. 59
    60. 60
    61. 61
    62. 62
    63. 63
    64. 64
    65. 65
    66. 66
    67. 67
    68. 68
    69. 69
    70. 70
    71. 71
    72. 72
    73. 73
    74. 74
    75. 75
    76. 76
    77. 77
    78. 78
    79. 79
    80. 80
    81. 81
    82. 82
    83. 83
    84. 84
    85. 85
    86. 86
    87. 87
    88. 88
    89. 89
    90. 90
    91. 91
    92. 92
    93. 93
    94. 94
    95. 95
    96. 96
    97. 97
    98. 98
    99. 99
    ;;;; -*- Mode: lisp; indent-tabs-mode: nil -*-

;;; Copyright (C) 2011, Dmitry Ignatiev <[email protected]>

;;; Permission is hereby granted, free of charge, to any person
;;; obtaining a copy of this software and associated documentation
;;; files (the "Software"), to deal in the Software without
;;; restriction, including without limitation the rights to use, copy,
;;; modify, merge, publish, distribute, sublicense, and/or sell copies
;;; of the Software, and to permit persons to whom the Software is
;;; furnished to do so, subject to the following conditions:

;;; The above copyright notice and this permission notice shall be
;;; included in all copies or substantial portions of the Software.

;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
;;; NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
;;; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
;;; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
;;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
;;; DEALINGS IN THE SOFTWARE

(in-package #:neural-flow)

;; Stolen from `trivial-garbage'

#+openmcl
(defvar *weak-pointers* (cl:make-hash-table :test 'eq :weak :value))

#+(or allegro openmcl lispworks)
(defstruct (weak-pointer (:constructor %make-weak-pointer))
  #-openmcl pointer)

(declaim (inline make-weak-pointer))
(defun make-weak-pointer (object)
  #+sbcl (sb-ext:make-weak-pointer object)
  #+(or cmu scl) (ext:make-weak-pointer object)
  #+clisp (ext:make-weak-pointer object)
  #+ecl (ext:make-weak-pointer object)
  #+allegro
  (let ((wv (excl:weak-vector 1)))
    (setf (svref wv 0) object)
    (%make-weak-pointer :pointer wv))
  #+openmcl
  (let ((wp (%make-weak-pointer)))
    (setf (gethash wp *weak-pointers*) object)
    wp)
  #+corman (ccl:make-weak-pointer object)
  #+lispworks
  (let ((array (make-array 1)))
    (hcl:set-array-weak array t)
    (setf (svref array 0) object)
    (%make-weak-pointer :pointer array)))

(declaim (inline weak-pointer-value))
(defun weak-pointer-value (weak-pointer)
  "If WEAK-POINTER is valid, returns its value. Otherwise, returns NIL."
  #+sbcl (values (sb-ext:weak-pointer-value weak-pointer))
  #+(or cmu scl) (values (ext:weak-pointer-value weak-pointer))
  #+clisp (values (ext:weak-pointer-value weak-pointer))
  #+ecl (values (ext:weak-pointer-value weak-pointer))
  #+allegro (svref (weak-pointer-pointer weak-pointer) 0)
  #+openmcl (values (gethash weak-pointer *weak-pointers*))
  #+corman (ccl:weak-pointer-obj weak-pointer)
  #+lispworks (svref (weak-pointer-pointer weak-pointer) 0))

;;Red-black tree

(declaim (inline %node %nleft %nright %nparent %nred %ndata %ncode
                 (setf %nleft) (setf %nright) (setf %nparent)
                 (setf %nred) (setf %ndata) (setf %ncode)))
(defstruct (%node (:constructor %node (data code parent red))
                  (:conc-name %n))
  (left nil :type (or null %node))
  (right nil :type (or null %node))
  (parent nil :type (or null %node))
  (red nil)
  data
  (code 0 :type (integer 0 #.most-positive-fixnum)))

(declaim (inline %tree %tree-root (setf %tree-root)))
(defstruct (%tree (:constructor %tree ())
                  (:copier %copy-tree))
  (root nil :type (or null %node)))

(declaim (inline rotate-left))
(defun %rotate-left (tree node)
  (declare (type %tree tree) (type %node node)
           (optimize (speed 3) (safety 0)))
  (let ((right (%nright node)))
    (when (setf (%nright node) (%nleft right))
      (setf (%nparent (%nleft right)) node))
    (if (setf (%nparent right) (%nparent node))
      (if (eq node (%nleft (%nparent node)))
        (setf (%nleft (%nparent node)) right)
        (setf (%nright (%nparent node)) right))
      (setf (%tree-root tree) right))

    Вылезли глаза! Как на этом можно писать?

    vertexua, 10 Февраля 2011

    Комментарии (68)