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hashsum.1: Write some notes about compatibility with GNU Coreutils.
[u/mdw/catacomb]
/
gf-gcd.c
diff --git
a/gf-gcd.c
b/gf-gcd.c
index
9b5402b
..
03cee47
100644
(file)
--- a/
gf-gcd.c
+++ b/
gf-gcd.c
@@
-51,7
+51,7
@@
void gf_gcd(mp **gcd, mp **xx, mp **yy, mp *a, mp *b)
mp *x = MP_ONE, *X = MP_ZERO;
mp *y = MP_ZERO, *Y = MP_ONE;
mp *u, *v;
mp *x = MP_ONE, *X = MP_ZERO;
mp *y = MP_ZERO, *Y = MP_ONE;
mp *u, *v;
- mp *q = MP_NEW;
+ mp *q = MP_NEW
, *t, *spare = MP_NEW
;
unsigned f = 0;
#define f_swap 1u
unsigned f = 0;
#define f_swap 1u
@@
-69,7
+69,7
@@
void gf_gcd(mp **gcd, mp **xx, mp **yy, mp *a, mp *b)
*/
if (MPX_UCMP(a->v, a->vl, <, b->v, b->vl)) {
*/
if (MPX_UCMP(a->v, a->vl, <, b->v, b->vl)) {
- { mp *t = a; a = b; b = t; }
+ t = a; a = b; b = t;
f |= f_swap;
}
f |= f_swap;
}
@@
-112,20
+112,19
@@
void gf_gcd(mp **gcd, mp **xx, mp **yy, mp *a, mp *b)
v = MP_COPY(b);
while (!MP_ZEROP(v)) {
v = MP_COPY(b);
while (!MP_ZEROP(v)) {
- mp *t;
gf_div(&q, &u, u, v);
if (f & f_ext) {
gf_div(&q, &u, u, v);
if (f & f_ext) {
- t = gf_mul(
MP_NEW
, X, q);
+ t = gf_mul(
spare
, X, q);
t = gf_add(t, t, x);
t = gf_add(t, t, x);
-
MP_DROP(x)
; x = X; X = t;
- t = gf_mul(
MP_NEW
, Y, q);
+
spare = x
; x = X; X = t;
+ t = gf_mul(
spare
, Y, q);
t = gf_add(t, t, y);
t = gf_add(t, t, y);
-
MP_DROP(y)
; y = Y; Y = t;
+
spare = y
; y = Y; Y = t;
}
t = u; u = v; v = t;
}
}
t = u; u = v; v = t;
}
- MP_DROP(q);
+ MP_DROP(q);
if (spare) MP_DROP(spare);
if (!gcd)
MP_DROP(u);
else {
if (!gcd)
MP_DROP(u);
else {
@@
-141,7
+140,7
@@
void gf_gcd(mp **gcd, mp **xx, mp **yy, mp *a, mp *b)
/* --- If @a@ and @b@ got swapped, swap the coefficients back --- */
if (f & f_swap) {
/* --- If @a@ and @b@ got swapped, swap the coefficients back --- */
if (f & f_swap) {
-
mp *
t = x; x = y; y = t;
+ t = x; x = y; y = t;
t = a; a = b; b = t;
}
t = a; a = b; b = t;
}