CC Mode 5.27 (C++); indentation walks across page (repeatable!)

[nbecker]

Here's the test case:

#ifndef Modulator_H
#define Modulator_H

#include <pair>

pair<int> uwbits[] = {
  {1,    1},
    {0,    0},
      {0,    1},
        {0,    0},
          {0,    1},
            {1,    1},
              {1,    0},
                {0,    0},
                  {1,    1},
                    {1,    1},
                      {0,    0},
                        {0,    0},
                          {0,    0},
                            {1,    1},
                              {0,    1},
                                {1,    0},
                                  {0,    1},
                                    {1,    1},
                                      {1,    0},
                                        {0,    1},
                                          {1,    1},
                                            {1,    1},
                                              {1,    0},
                                                {1,    0},
                                                  {1,    1},
                                                    {1,    1},
                                                      {1,    1}
};

#endif


Emacs  : XEmacs 21.1 (patch 12) "Channel Islands" [Lucid] (i386-redhat-linux) 
of Thu Aug 24 2000 on porky.devel.redhat.com
Package: CC Mode 5.27 (C++)
Buffer Style: gnu

c-emacs-features: (8-bit)

current state:
==============
(setq
 c-basic-offset 2
 c-comment-only-line-offset '(0 . 0)
 c-block-comment-prefix ""
 c-comment-prefix-regexp "//+\\|\\**"
 c-cleanup-list '(scope-operator)
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(substatement-open after)
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after)
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                   (arglist-cont . 0)
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                   (stream-op . c-lineup-streamop)
                   (inclass . +)
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                   (extern-lang-open . 0)
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                   (inextern-lang . +)
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                   (innamespace . +)
                   (template-args-cont c-lineup-template-args +)
                   (inlambda . c-lineup-inexpr-block)
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                   (statement-block-intro . +)
                   (knr-argdecl-intro . 5)
                   (substatement-open . +)
                   (label . 0)
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                   (arglist-intro . c-lineup-arglist-intro-after-paren)
                   (arglist-close . c-lineup-arglist)
                   (inline-open . 0)
                   (brace-list-open . +)
                   )
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 c-tab-always-indent t
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 comment-column 32
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 filladapt-mode t
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 comment-start-skip "/\\*+ *\\|//+ *"
 fill-prefix nil
 paragraph-start "[     ]*\\(//+\\|\\**\\)?[    ]*$\\|^"
 adaptive-fill-mode t
 adaptive-fill-regexp "[        ]*\\(//+\\|\\**\\)?[    ]*\\([  ]*\\([#;>*]+ 
+\\)?\\)"
 )