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Annotation of OpenXM_contrib/gmp/stack-alloc.h, Revision 1.1.1.1

1.1       maekawa     1: /* Stack allocation routines.  This is intended for machines without support
                      2:    for the `alloca' function.
                      3:
                      4: Copyright (C) 1996 Free Software Foundation, Inc.
                      5:
                      6: This file is part of the GNU MP Library.
                      7:
                      8: The GNU MP Library is free software; you can redistribute it and/or modify
                      9: it under the terms of the GNU Library General Public License as published by
                     10: the Free Software Foundation; either version 2 of the License, or (at your
                     11: option) any later version.
                     12:
                     13: The GNU MP Library is distributed in the hope that it will be useful, but
                     14: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     15: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
                     16: License for more details.
                     17:
                     18: You should have received a copy of the GNU Library General Public License
                     19: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
                     20: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
                     21: MA 02111-1307, USA. */
                     22:
                     23: struct tmp_stack
                     24: {
                     25:   void *end;
                     26:   void *alloc_point;
                     27:   struct tmp_stack *prev;
                     28: };
                     29:
                     30: struct tmp_marker
                     31: {
                     32:   struct tmp_stack *which_chunk;
                     33:   void *alloc_point;
                     34: };
                     35:
                     36: typedef struct tmp_marker tmp_marker;
                     37:
                     38: #if __STDC__
                     39: void *__tmp_alloc (unsigned long);
                     40: void __tmp_mark (tmp_marker *);
                     41: void __tmp_free (tmp_marker *);
                     42: #else
                     43: void *__tmp_alloc ();
                     44: void __tmp_mark ();
                     45: void __tmp_free ();
                     46: #endif
                     47:
                     48: #ifndef __TMP_ALIGN
                     49: #define __TMP_ALIGN 8
                     50: #endif
                     51:
                     52: #define TMP_DECL(marker) tmp_marker marker
                     53: #define TMP_ALLOC(size) \
                     54:   __tmp_alloc (((unsigned long) (size) + __TMP_ALIGN - 1) & -__TMP_ALIGN)
                     55: #define TMP_MARK(marker) __tmp_mark (&marker)
                     56: #define TMP_FREE(marker) __tmp_free (&marker)