Mercurial > dropbear
view libtommath/bn_mp_cmp.c @ 691:e698d1a9f428
Some changes since 2012.55
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Fri, 22 Feb 2013 23:54:47 +0800 |
parents | 5ff8218bcee9 |
children | 60fc6476e044 |
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#include <tommath.h> #ifdef BN_MP_CMP_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 */ /* compare two ints (signed)*/ int mp_cmp (mp_int * a, mp_int * b) { /* compare based on sign */ if (a->sign != b->sign) { if (a->sign == MP_NEG) { return MP_LT; } else { return MP_GT; } } /* compare digits */ if (a->sign == MP_NEG) { /* if negative compare opposite direction */ return mp_cmp_mag(b, a); } else { return mp_cmp_mag(a, b); } } #endif /* $Source: /cvs/libtom/libtommath/bn_mp_cmp.c,v $ */ /* $Revision: 1.3 $ */ /* $Date: 2006/03/31 14:18:44 $ */