#include "bn_lcl.h"
/* r can == a or b */
-int BN_add(r, a, b)
-BIGNUM *r;
-BIGNUM *a;
-BIGNUM *b;
+int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
{
- BIGNUM *tmp;
+ const BIGNUM *tmp;
bn_check_top(a);
bn_check_top(b);
}
/* unsigned add of b to a, r must be large enough */
-int BN_uadd(r,a,b)
-BIGNUM *r;
-BIGNUM *a;
-BIGNUM *b;
+int BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
{
register int i;
int max,min;
BN_ULONG *ap,*bp,*rp,carry,t1;
- BIGNUM *tmp;
+ const BIGNUM *tmp;
bn_check_top(a);
bn_check_top(b);
}
/* unsigned subtraction of b from a, a must be larger than b. */
-int BN_usub(r, a, b)
-BIGNUM *r;
-BIGNUM *a;
-BIGNUM *b;
+int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
{
int max,min;
register BN_ULONG t1,t2,*ap,*bp,*rp;
return(1);
}
-int BN_sub(r, a, b)
-BIGNUM *r;
-BIGNUM *a;
-BIGNUM *b;
+int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
{
int max;
int add=0,neg=0;
- BIGNUM *tmp;
+ const BIGNUM *tmp;
bn_check_top(a);
bn_check_top(b);