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b23108c
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Fix overrun in @mpx_lsr@.
author
mdw
<mdw>
Sat, 3 Apr 2004 03:29:40 +0000
(
03:29
+0000)
committer
mdw
<mdw>
Sat, 3 Apr 2004 03:29:40 +0000
(
03:29
+0000)
mpx.c
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diff --git
a/mpx.c
b/mpx.c
index
1591f98
..
ef93e3e
100644
(file)
--- a/
mpx.c
+++ b/
mpx.c
@@
-1,6
+1,6
@@
/* -*-c-*-
*
/* -*-c-*-
*
- * $Id: mpx.c,v 1.1
8 2004/04/01 12:50:09
mdw Exp $
+ * $Id: mpx.c,v 1.1
9 2004/04/03 03:29:40
mdw Exp $
*
* Low-level multiprecision arithmetic
*
*
* Low-level multiprecision arithmetic
*
@@
-30,6
+30,9
@@
/*----- Revision history --------------------------------------------------*
*
* $Log: mpx.c,v $
/*----- Revision history --------------------------------------------------*
*
* $Log: mpx.c,v $
+ * Revision 1.19 2004/04/03 03:29:40 mdw
+ * Fix overrun in @mpx_lsr@.
+ *
* Revision 1.18 2004/04/01 12:50:09 mdw
* Add cyclic group abstraction, with test code. Separate off exponentation
* functions for better static linking. Fix a buttload of bugs on the way.
* Revision 1.18 2004/04/01 12:50:09 mdw
* Add cyclic group abstraction, with test code. Separate off exponentation
* functions for better static linking. Fix a buttload of bugs on the way.
@@
-660,7
+663,7
@@
void mpx_lsr(mpw *dv, mpw *dvl, const mpw *av, const mpw *avl, size_t n)
/* --- Single bit shifting --- */
else if (n == 1) {
/* --- Single bit shifting --- */
else if (n == 1) {
- mpw w =
*av++ >> 1
;
+ mpw w =
av < avl ? *av++ >> 1 : 0
;
while (av < avl) {
mpw t;
if (dv >= dvl)
while (av < avl) {
mpw t;
if (dv >= dvl)