diff libtommath/bn_mp_add.c @ 1692:1051e4eea25a

Update LibTomMath to 1.2.0 (#84) * update C files * update other files * update headers * update makefiles * remove mp_set/get_double() * use ltm 1.2.0 API * update ltm_desc * use bundled tommath if system-tommath is too old * XMALLOC etc. were changed to MP_MALLOC etc.
author Steffen Jaeckel <s@jaeckel.eu>
date Tue, 26 May 2020 17:36:47 +0200
parents f52919ffd3b1
children
line wrap: on
line diff
--- a/libtommath/bn_mp_add.c	Tue May 26 23:27:26 2020 +0800
+++ b/libtommath/bn_mp_add.c	Tue May 26 17:36:47 2020 +0200
@@ -1,21 +1,13 @@
 #include "tommath_private.h"
 #ifdef BN_MP_ADD_C
-/* LibTomMath, multiple-precision integer library -- Tom St Denis
- *
- * LibTomMath is a library that provides multiple-precision
- * integer arithmetic as well as number theoretic functionality.
- *
- * The library was designed directly after the MPI library by
- * Michael Fromberger but has been written from scratch with
- * additional optimizations in place.
- *
- * SPDX-License-Identifier: Unlicense
- */
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
 
 /* high level addition (handles signs) */
-int mp_add(const mp_int *a, const mp_int *b, mp_int *c)
+mp_err mp_add(const mp_int *a, const mp_int *b, mp_int *c)
 {
-   int     sa, sb, res;
+   mp_sign sa, sb;
+   mp_err err;
 
    /* get sign of both inputs */
    sa = a->sign;
@@ -26,7 +18,7 @@
       /* both positive or both negative */
       /* add their magnitudes, copy the sign */
       c->sign = sa;
-      res = s_mp_add(a, b, c);
+      err = s_mp_add(a, b, c);
    } else {
       /* one positive, the other negative */
       /* subtract the one with the greater magnitude from */
@@ -34,17 +26,13 @@
       /* the sign of the one with the greater magnitude. */
       if (mp_cmp_mag(a, b) == MP_LT) {
          c->sign = sb;
-         res = s_mp_sub(b, a, c);
+         err = s_mp_sub(b, a, c);
       } else {
          c->sign = sa;
-         res = s_mp_sub(a, b, c);
+         err = s_mp_sub(a, b, c);
       }
    }
-   return res;
+   return err;
 }
 
 #endif
-
-/* ref:         HEAD -> master, tag: v1.1.0 */
-/* git commit:  08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
-/* commit time: 2019-01-28 20:32:32 +0100 */