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author | tege <tege@gmplib.org> | 1996-05-08 09:10:48 +0200 |
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committer | tege <tege@gmplib.org> | 1996-05-08 09:10:48 +0200 |
commit | c6d715868f53b08c62a129ffd77fb585fd89c43b (patch) | |
tree | 82f36d2d8cbe7e07ad3e18d5c6e047e8796d861e /stack-alloc.h | |
download | gmp-c6d715868f53b08c62a129ffd77fb585fd89c43b.tar.gz |
Initial revision
Diffstat (limited to 'stack-alloc.h')
-rw-r--r-- | stack-alloc.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/stack-alloc.h b/stack-alloc.h new file mode 100644 index 000000000..f5fbb8608 --- /dev/null +++ b/stack-alloc.h @@ -0,0 +1,50 @@ +/* Stack allocation routines. This is intended for machines without support + for the `alloca' function. + +Copyright (C) 1996 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Library General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at your +option) any later version. + +The GNU MP Library 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 Library General Public +License for more details. + +You should have received a copy of the GNU Library General Public License +along with the GNU MP Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + +struct tmp_stack +{ + void *end; + void *alloc_point; + struct tmp_stack *prev; +}; + +struct tmp_marker +{ + struct tmp_stack *which_chunk; + void *alloc_point; +}; + +typedef struct tmp_marker tmp_marker; + +void *__tmp_alloc (unsigned long); +void __tmp_mark (tmp_marker *); +void __tmp_free (tmp_marker *); + +#ifndef __TMP_ALIGN +#define __TMP_ALIGN 8 +#endif + +#define TMP_DECL(marker) tmp_marker marker +#define TMP_ALLOC(size) \ + __tmp_alloc (((unsigned long) (size) + __TMP_ALIGN - 1) & -__TMP_ALIGN) +#define TMP_MARK(marker) __tmp_mark (&marker) +#define TMP_FREE(marker) __tmp_free (&marker) |