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make obstack object allocators more type-safe

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This changes OBSTACK_ZALLOC and OBSTACK_CALLOC to cast their value to
the correct type.  This is more type-safe and also is more in line
with the other object-allocation macros in libiberty.h.

Making this change revealed one trivial error in dwarf2read.c.
On the whole that seems pretty good to me.

Tested by rebuilding.

2014-06-20  Tom Tromey  <tromey@redhat.com>

	* dwarf2read.c (dw2_get_real_path): Use correct type in
	OBSTACK_CALLOC.
	* gdb_obstack.h (OBSTACK_ZALLOC, OBSTACK_CALLOC): Cast result.
This commit is contained in:
Tom Tromey
2014-06-13 13:08:23 -06:00
parent 698b3e0833
commit 26f2dc3065
3 changed files with 10 additions and 4 deletions
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6
gdb/gdb_obstack.h
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@ -25,11 +25,11 @@
/* Utility macros - wrap obstack alloc into something more robust. */
#define OBSTACK_ZALLOC(OBSTACK,TYPE) \
(memset (obstack_alloc ((OBSTACK), sizeof (TYPE)), 0, sizeof (TYPE)))
((TYPE *) memset (obstack_alloc ((OBSTACK), sizeof (TYPE)), 0, sizeof (TYPE)))
#define OBSTACK_CALLOC(OBSTACK,NUMBER,TYPE) \
(memset (obstack_alloc ((OBSTACK), (NUMBER) * sizeof (TYPE)), \
0, (NUMBER) * sizeof (TYPE)))
((TYPE *) memset (obstack_alloc ((OBSTACK), (NUMBER) * sizeof (TYPE)), \
0, (NUMBER) * sizeof (TYPE)))
/* Unless explicitly specified, GDB obstacks always use xmalloc() and
xfree(). */