[svn-r17843] Description:

	Bring r17842 from trunk to 1.8 branch:

	Further refactor v2 B-tree code toward being able to pass context info
down to encode/decode client callbacks:
	- Separate H5B2_create call to return H5B2_t structure
	- Make loading the v2 B-tree header pick up the client class from the
		ID stored in the file.  Simplify some internal API calls as a
		result.

Tested on:
       FreeBSD/32 6.3 (duty) in debug mode
       FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
       Linux/32 2.6 (jam) w/PGI compilers, w/default API=1.8.x,
               w/C++ & FORTRAN, w/threadsafe, in debug mode
       Linux/64-amd64 2.6 (smirom) w/Intel compilers, w/default API=1.6.x,
               w/C++ & FORTRAN, in production mode
       Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
               w/szip filter, in production mode
       Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
               in production mode
       Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in debug mode
       Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
       Mac OS X/32 10.6.1 (amazon) in debug mode
       Mac OS X/32 10.6.1 (amazon) w/C++ & FORTRAN, w/threadsafe,
               in production mode

1 files changed, 1 insertions, 1 deletions

diff --git a/src/H5HF.c b/src/H5HF.c
index 8625633..d94ece2 100644
--- a/src/H5HF.c
+++ b/src/H5HF.c
@@ -322,7 +322,7 @@ H5HF_get_id_len(H5HF_t *fh, size_t *id_len_p)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5HF_get_heap_addr(H5HF_t *fh, haddr_t *heap_addr_p)
+H5HF_get_heap_addr(const H5HF_t *fh, haddr_t *heap_addr_p)
 {
     FUNC_ENTER_NOAPI_NOFUNC(H5HF_get_heap_addr)