From 6c9c7c579600631d19740329e40d8dca93c0f90e Mon Sep 17 00:00:00 2001 From: bernie Date: Sat, 24 Jul 2004 17:48:01 +0000 Subject: * libiberty.h (XNEW, XCNEW, XNEWVEC, XCNEWVEC, XOBNEW): Move here from libcpp/internal.h. (XDELETE, XRESIZEVEC, XDELETEVEC, XNEWVAR, XCNEWVAR, XRESIZEVAR): New macros. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85119 138bc75d-0d04-0410-961f-82ee72b054a4 --- include/libiberty.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'include') diff --git a/include/libiberty.h b/include/libiberty.h index 5c101538580..68eeeae7396 100644 --- a/include/libiberty.h +++ b/include/libiberty.h @@ -250,6 +250,37 @@ extern PTR xmemdup PARAMS ((const PTR, size_t, size_t)) ATTRIBUTE_MALLOC; extern double physmem_total PARAMS ((void)); extern double physmem_available PARAMS ((void)); + +/* These macros provide a K&R/C89/C++-friendly way of allocating structures + with nice encapsulation. The XDELETE*() macros are technically + superfluous, but provided here for symmetry. Using them consistently + makes it easier to update client code to use different allocators such + as new/delete and new[]/delete[]. */ + +/* Scalar allocators. */ + +#define XNEW(T) ((T *) xmalloc (sizeof (T))) +#define XCNEW(T) ((T *) xcalloc (1, sizeof (T))) +#define XDELETE(P) free ((P)) + +/* Array allocators. */ + +#define XNEWVEC(T, N) ((T *) xmalloc (sizeof (T) * (N))) +#define XCNEWVEC(T, N) ((T *) xcalloc ((N), sizeof (T))) +#define XRESIZEVEC(T, P, N) ((T *) xrealloc ((P), sizeof (T) * (N))) +#define XDELETEVEC(P) free ((P)) + +/* Allocators for variable-sized structures and raw buffers. */ + +#define XNEWVAR(T, S) ((T *) xmalloc ((S))) +#define XCNEWVAR(T, S) ((T *) xcalloc (1, (S))) +#define XRESIZEVAR(T, P, S) ((T *) xrealloc ((P), (S))) + +/* Type-safe obstack allocator. */ + +#define XOBNEW(O, T) ((T *) obstack_alloc ((O), sizeof (T))) + + /* hex character manipulation routines */ #define _hex_array_size 256 -- cgit v1.2.1