Mercurial > dropbear
view libtommath/bn_mp_abs.c @ 538:7c8cdc5d2269
merge of '0a8dfaa3e5365a2004db2b55895e11f65b5cefcc'
and 'ef3b41f37e9f4dd45358bc40f9559ee23f71c284'
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Tue, 17 Mar 2009 22:30:39 +0000 |
parents | 5ff8218bcee9 |
children | 60fc6476e044 |
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#include <tommath.h> #ifdef BN_MP_ABS_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. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://math.libtomcrypt.com */ /* b = |a| * * Simple function copies the input and fixes the sign to positive */ int mp_abs (mp_int * a, mp_int * b) { int res; /* copy a to b */ if (a != b) { if ((res = mp_copy (a, b)) != MP_OKAY) { return res; } } /* force the sign of b to positive */ b->sign = MP_ZPOS; return MP_OKAY; } #endif /* $Source: /cvs/libtom/libtommath/bn_mp_abs.c,v $ */ /* $Revision: 1.3 $ */ /* $Date: 2006/03/31 14:18:44 $ */