pmt: revert 7f8090b

include/libgnulib/xmalloca.h

@@ -1,77 +0,0 @@
-/* Safe automatic memory allocation with out of memory checking.
-   Copyright (C) 2003, 2005, 2007, 2009-2024 Free Software Foundation, Inc.
-   Written by Bruno Haible <bruno@clisp.org>, 2003.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-#ifndef _XMALLOCA_H
-#define _XMALLOCA_H
-
-/* This file uses _GL_ATTRIBUTE_ALLOC_SIZE, _GL_ATTRIBUTE_DEALLOC,
-   _GL_ATTRIBUTE_MALLOC, _GL_ATTRIBUTE_RETURNS_NONNULL, HAVE_ALLOCA.  */
-#if !_GL_CONFIG_H_INCLUDED
- #error "Please include config.h first."
-#endif
-
-#include "malloca.h"
-#include "xalloc.h"
-#include "xalloc-oversized.h"
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* xmalloca(N) is a checking safe variant of alloca(N).  It allocates N bytes
-   of memory allocated on the stack, that must be freed using freea() before
-   the function returns.  N should not have side effects.
-   Upon failure, it exits with an error message.  */
-#if HAVE_ALLOCA
-# define xmalloca(N) \
-  ((N) < 4032 - (2 * sa_alignment_max - 1)                                   \
-   ? (void *) (((uintptr_t) (char *) alloca ((N) + 2 * sa_alignment_max - 1) \
-                + (2 * sa_alignment_max - 1))                                \
-               & ~(uintptr_t)(2 * sa_alignment_max - 1))                     \
-   : xmmalloca (N))
-extern void * xmmalloca (size_t n)
-  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (freea, 1)
-  _GL_ATTRIBUTE_ALLOC_SIZE ((1)) _GL_ATTRIBUTE_RETURNS_NONNULL;
-#else
-# define xmalloca(N) \
-  xmalloc (N)
-#endif
-
-/* xnmalloca(N,S) is an overflow-safe variant of xmalloca (N * S).
-   It allocates an array of N objects, each with S bytes of memory,
-   on the stack.  S must be positive and N must be nonnegative,
-   and S and N should not have side effects.
-   The array must be freed using freea() before the function returns.
-   Upon failure, it exits with an error message.  */
-#if HAVE_ALLOCA
-/* Rely on xmalloca (SIZE_MAX) calling xalloc_die ().  */
-# define xnmalloca(n, s) \
-    xmalloca (xalloc_oversized (n, s) ? (size_t) (-1) : (n) * (size_t) (s))
-#else
-# define xnmalloca(n, s) \
-    xnmalloc (n, s)
-#endif
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* _XMALLOCA_H */