[Pspp-commits] [SCM] GNU PSPP branch, master, updated. v0.6.0-73-g3aa5d73

[Ben Pfaff]

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- Log -----------------------------------------------------------------
commit 3aa5d735c587e0ba8ef616426f8e45f8a7bf1e2a
Author: Ben Pfaff <address@hidden>
Date:   Tue Sep 30 21:33:09 2008 -0700

    Avoid the C99-only feature of declaring a variable as part of a for 
statement.

commit ac58b3c516a6e1f8b214d3b8c9834f31b2a05062
Author: Ben Pfaff <address@hidden>
Date:   Tue Sep 30 20:35:28 2008 -0700

    Avoid bug in GCC 4.3 in hmap-test.  Add comment warning about the bug.
    
    See patch #6637 for additional commentary.

commit c1e75ee809efd2f4bfd9ebcc1c2b0689c1da0e4c
Author: Ben Pfaff <address@hidden>
Date:   Fri Sep 26 20:42:01 2008 -0700

    New hmap and hmapx hash table implementations.
    
    These new hash table implementations should yield better performance
    than the older one, for at least two reasons.  First, they are based
    on "separate chaining" rather than "open addressing", and thus do not
    suffer from clustering, which is likely to be an issue with the hash
    functions that we have been using.  Second, they are carefully written
    to generate simple code that should inline well.
    
    Also, move the existing hash functions into a new pair of files,
    src/lib/hash-functions.[ch].  This allows users of the new hash tables
    to use them without including the older hash table header.

-----------------------------------------------------------------------

Summary of changes:
 src/libpspp/automake.mk                            |    6 +
 src/libpspp/hash-functions.c                       |   90 ++
 .../file-handle.h => libpspp/hash-functions.h}     |   17 +-
 src/libpspp/hash.c                                 |   71 +--
 src/libpspp/hash.h                                 |    8 +-
 src/libpspp/hmap.c                                 |  186 ++++
 src/libpspp/hmap.h                                 |  509 ++++++++++
 src/libpspp/hmapx.c                                |   99 ++
 src/libpspp/hmapx.h                                |  468 +++++++++
 src/output/charts/box-whisker.c                    |    3 +-
 tests/automake.mk                                  |   18 +
 tests/libpspp/hmap-test.c                          |  999 +++++++++++++++++++
 tests/libpspp/hmapx-test.c                         | 1034 ++++++++++++++++++++
 13 files changed, 3421 insertions(+), 87 deletions(-)
 create mode 100644 src/libpspp/hash-functions.c
 copy src/{language/data-io/file-handle.h => libpspp/hash-functions.h} (71%)
 create mode 100644 src/libpspp/hmap.c
 create mode 100644 src/libpspp/hmap.h
 create mode 100644 src/libpspp/hmapx.c
 create mode 100644 src/libpspp/hmapx.h
 create mode 100644 tests/libpspp/hmap-test.c
 create mode 100644 tests/libpspp/hmapx-test.c


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