libc/malloc obstack.h

[roland at sourceware dot org]

CVSROOT:	/cvs/glibc
Module name:	libc
Changes by:	roland@sources.redhat.com	2006-01-11 05:42:42

Modified files:
	malloc         : obstack.h 

Log message:
	2005-10-14  Paul Eggert  <eggert@cs.ucla.edu>
	
	* malloc/obstack.c: Fix old comments.  Update FSF snail mail address.
	* malloc/obstack.h: Likewise.
	Fix portability bugs encountered when porting to Itanium.
	* malloc/obstack.h (obstack_empty_p, obstack_finish): Do not
	assume that the "contents" member is suitably aligned.  It is
	not, for some hosts and alignments: e.g., Itanium, long-double.
	* malloc/obstack.c (_obstack_begin, _obstack_begin_1,
	_obstack_newchunk): Likewise.
	* malloc/obstack.c: Include <stddef.h>, for size_t.
	Include <inttypes.h>, <stdint.h> if needed and available.
	(DEFAULT_ALIGNMENT): Now an enum constant, not a macro.
	Use C89 offsetof rather than K&R trick.
	Use the maximum alignment of uintmax_t, long double, void *
	rather than the alignment of double.
	(union fooround): Use uintmax_t, long double, void * members
	rather than just long and double.
	Fix portability bugs encountered when porting to the IBM iSeries,
	where pointers are 256 bits wide and no integers are that wide.
	* malloc/obstack.h (__PTR_TO_INT, __INT_TO_PTR): Remove.
	All uses changed to:
	(__BPTR_ALIGN, __PTR_ALIGN): New macros.
	(struct _obstack_chunk.temp): Change from int to a union
	of pointer and int.  All uses changed.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/malloc/obstack.h.diff?cvsroot=glibc&r1=1.21&r2=1.22