change some parameters in the library to meet the needs of the website httpbin.org

Fork of MiniTLS-GPL by Donatien Garnier

Committer:
shiyilei
Date:
Fri Feb 06 06:17:33 2015 +0000
Revision:
5:95f70ebfe61f
Parent:
0:35aa5be3b78d
change some parameters in the library to meet the needs of httpbin.org

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MiniTLS 0:35aa5be3b78d 1 /* TomsFastMath, a fast ISO C bignum library.
MiniTLS 0:35aa5be3b78d 2 *
MiniTLS 0:35aa5be3b78d 3 * This project is meant to fill in where LibTomMath
MiniTLS 0:35aa5be3b78d 4 * falls short. That is speed ;-)
MiniTLS 0:35aa5be3b78d 5 *
MiniTLS 0:35aa5be3b78d 6 * This project is public domain and free for all purposes.
MiniTLS 0:35aa5be3b78d 7 *
MiniTLS 0:35aa5be3b78d 8 * Tom St Denis, tomstdenis@gmail.com
MiniTLS 0:35aa5be3b78d 9 */
MiniTLS 0:35aa5be3b78d 10 #include <tfm.h>
MiniTLS 0:35aa5be3b78d 11
MiniTLS 0:35aa5be3b78d 12 /* unsigned subtraction ||a|| >= ||b|| ALWAYS! */
MiniTLS 0:35aa5be3b78d 13 void s_fp_sub(fp_int *a, fp_int *b, fp_int *c)
MiniTLS 0:35aa5be3b78d 14 {
MiniTLS 0:35aa5be3b78d 15 int x, oldbused, oldused;
MiniTLS 0:35aa5be3b78d 16 fp_word t;
MiniTLS 0:35aa5be3b78d 17
MiniTLS 0:35aa5be3b78d 18 oldused = c->used;
MiniTLS 0:35aa5be3b78d 19 oldbused = b->used;
MiniTLS 0:35aa5be3b78d 20 c->used = a->used;
MiniTLS 0:35aa5be3b78d 21 t = 0;
MiniTLS 0:35aa5be3b78d 22 for (x = 0; x < oldbused; x++) {
MiniTLS 0:35aa5be3b78d 23 t = ((fp_word)a->dp[x]) - (((fp_word)b->dp[x]) + t);
MiniTLS 0:35aa5be3b78d 24 c->dp[x] = (fp_digit)t;
MiniTLS 0:35aa5be3b78d 25 t = (t >> DIGIT_BIT)&1;
MiniTLS 0:35aa5be3b78d 26 }
MiniTLS 0:35aa5be3b78d 27 for (; x < a->used; x++) {
MiniTLS 0:35aa5be3b78d 28 t = ((fp_word)a->dp[x]) - t;
MiniTLS 0:35aa5be3b78d 29 c->dp[x] = (fp_digit)t;
MiniTLS 0:35aa5be3b78d 30 t = (t >> DIGIT_BIT);
MiniTLS 0:35aa5be3b78d 31 }
MiniTLS 0:35aa5be3b78d 32 for (; x < oldused; x++) {
MiniTLS 0:35aa5be3b78d 33 c->dp[x] = 0;
MiniTLS 0:35aa5be3b78d 34 }
MiniTLS 0:35aa5be3b78d 35 fp_clamp(c);
MiniTLS 0:35aa5be3b78d 36 }
MiniTLS 0:35aa5be3b78d 37
MiniTLS 0:35aa5be3b78d 38 /* $Source: /cvs/libtom/tomsfastmath/src/addsub/s_fp_sub.c,v $ */
MiniTLS 0:35aa5be3b78d 39 /* $Revision: 1.1 $ */
MiniTLS 0:35aa5be3b78d 40 /* $Date: 2006/12/31 21:25:53 $ */