/* -*-c-*-
*
- * $Id: mp-mem.c,v 1.4 2001/02/03 12:00:29 mdw Exp $
+ * $Id: mp-mem.c,v 1.6 2004/04/03 03:30:22 mdw Exp $
*
* Memory management for multiprecision numbers
*
/*----- Revision history --------------------------------------------------*
*
* $Log: mp-mem.c,v $
+ * Revision 1.6 2004/04/03 03:30:22 mdw
+ * Fix long-standing stupidity in @mp_dest@.
+ *
+ * Revision 1.5 2001/06/16 12:57:00 mdw
+ * Implement some missing functions.
+ *
* Revision 1.4 2001/02/03 12:00:29 mdw
* Now @mp_drop@ checks its argument is non-NULL before attempting to free
* it. Note that the macro version @MP_DROP@ doesn't do this.
* Use: Splits off a modifiable version of the integer referred to.
*/
-mp *mp_split(mp *m)
-{
-/* if ((m->f & MP_CONST) || m->ref > 1) { */
-/* size_t len = MP_LEN(m); */
-/* mp *mm = mp_new(len, m->f); */
-/* if (!(m->f & MP_UNDEF)) */
-/* memcpy(mm->v, m->v, MPWS(len)); */
-/* m->ref--; */
-/* m = mm; */
-/* } */
- MP_SPLIT(m);
- return (m);
-}
+mp *mp_split(mp *m) { MP_SPLIT(m); return (m); }
/* --- @mp_resize@ --- *
*
* changed. It is an error to
*/
-void mp_resize(mp *m, size_t sz)
-{
-/* mparena *a = (m->f & MP_BURN) ? MPARENA_SECURE : MPARENA_GLOBAL; */
-/* mpw *v; */
-/* size_t len = MP_LEN(m); */
-/* assert(((void)"can't make size less than length", sz >= len)); */
-/* v = mpalloc(a, sz); */
-/* if (!(m->f & MP_UNDEF)) */
-/* memcpy(v, m->v, MPWS(len)); */
-/* if (m->f & MP_BURN) */
-/* memset(m->v, 0, MPWS(m->sz)); */
-/* mpfree(m->a, m->v); */
-/* m->a = a; */
-/* m->v = v; */
-/* m->vl = v + len; */
-}
+void mp_resize(mp *m, size_t sz) { MP_RESIZE(m, sz); }
/* --- @mp_ensure@ --- *
*
* allocated for the new length then the size is increased. It
*/
-void mp_ensure(mp *m, size_t sz)
-{
-/* size_t len = MP_LEN(m); */
-/* if (sz >= len) { */
-/* if (sz > m->sz) */
-/* mp_resize(m, sz); */
-/* if (!(m->f & MP_UNDEF) && sz > len) */
-/* memset(m->vl, 0, MPWS(sz - len)); */
-/* m->vl = m->v + sz; */
-/* } */
-}
+void mp_ensure(mp *m, size_t sz) { MP_ENSURE(m, sz); }
/* --- @mp_dest@ --- *
*
/* --- Otherwise check whether the destination is suitable --- */
if (m->ref > 1 || (m->f & MP_CONST) ||
- m->sz > len || !((f & ~m->f) & MP_BURN)) {
+ sz > m->sz || !((f & ~m->f) & MP_BURN)) {
/* --- No -- allocate a new buffer --- *
*