denyhosts/clamav/libclamav/tomsfastmath/addsub/fp_cmp_d.c

39 lines
740 B
C

/* TomsFastMath, a fast ISO C bignum library.
*
* This project is meant to fill in where LibTomMath
* falls short. That is speed ;-)
*
* This project is public domain and free for all purposes.
*
* Tom St Denis, tomstdenis@gmail.com
*/
#include <tfm_private.h>
/* compare against a single digit */
int fp_cmp_d(fp_int *a, fp_digit b)
{
/* compare based on sign */
if ((b && a->used == 0) || a->sign == FP_NEG) {
return FP_LT;
}
/* compare based on magnitude */
if (a->used > 1) {
return FP_GT;
}
/* compare the only digit of a to b */
if (a->dp[0] > b) {
return FP_GT;
} else if (a->dp[0] < b) {
return FP_LT;
} else {
return FP_EQ;
}
}
/* $Source$ */
/* $Revision$ */
/* $Date$ */