Merged revisions 77452 via svnmerge from

Merged revisions 77452 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

................
  r77452 | mark.dickinson | 2010-01-12 23:04:19 +0000 (Tue, 12 Jan 2010) | 23 lines

  Merged revisions 77410,77421,77450-77451 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r77410 | mark.dickinson | 2010-01-10 13:06:31 +0000 (Sun, 10 Jan 2010) | 1 line

    Remove unused BCinfo fields and an unused macro.
  ........
    r77421 | mark.dickinson | 2010-01-11 17:15:13 +0000 (Mon, 11 Jan 2010) | 1 line

    Change a variable type to avoid signed overflow; replace repeated '19999' constant by a define.
  ........
    r77450 | mark.dickinson | 2010-01-12 22:23:56 +0000 (Tue, 12 Jan 2010) | 4 lines

    Issue #7632: Fix a problem with _Py_dg_strtod that could lead to
    crashes in debug builds, for certain long numeric strings
    corresponding to subnormal values.
  ........
    r77451 | mark.dickinson | 2010-01-12 22:55:51 +0000 (Tue, 12 Jan 2010) | 2 lines

    Issue #7632:  Fix a bug in dtoa.c that could lead to incorrectly-rounded results.
  ........
................