[PATCH 0/4] libcpp patches

[David Malcolm <dmalcolm at redhat dot com>]

The following patches for libcpp (and gcc) are an attempt at making
the libcpp API and internal representation easier to understand
and to hack on, simplifying it (IMHO) with a modest amount of C++,
without changing its behavior.

See the individual patches for their descriptions.

How do these look? (for trunk)

I've successfully bootstrapped&regrtested the cumulative effect of the
patches on x86_64-unknown-linux-gnu (Fedora 20).  I would verify the
bootstrap&regrtest of each patch before applying them.

I didn't do any performance testing; what would be appropriate?

David Malcolm (4):
  libcpp: Improvements to comments in line-map.h/c
  libcpp: Replace macro usage with C++ constructs
  libcpp/input.c: Add a way to visualize the linemaps
  Replace line_map union with C++ class hierarchy

 gcc/ada/gcc-interface/trans.c |   2 +-
 gcc/c-family/c-common.h       |   4 +-
 gcc/c-family/c-lex.c          |   6 +-
 gcc/c-family/c-opts.c         |  14 +-
 gcc/c-family/c-ppoutput.c     |   6 +-
 gcc/common.opt                |   4 +
 gcc/diagnostic.c              |   2 +-
 gcc/fortran/cpp.c             |  12 +-
 gcc/genmatch.c                |   4 +-
 gcc/input.c                   | 244 +++++++++++++-
 gcc/input.h                   |   2 +
 gcc/toplev.c                  |   3 +
 gcc/tree-diagnostic.c         |   9 +-
 libcpp/directives.c           |  17 +-
 libcpp/files.c                |   2 +-
 libcpp/include/cpplib.h       |   2 +-
 libcpp/include/line-map.h     | 735 +++++++++++++++++++++++++++++++-----------
 libcpp/internal.h             |  12 +-
 libcpp/line-map.c             | 243 ++++++++------
 libcpp/location-example.txt   | 216 +++++++++++++
 libcpp/macro.c                |  18 +-
 21 files changed, 1204 insertions(+), 353 deletions(-)
 create mode 100644 libcpp/location-example.txt

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1.8.5.3