Mercurial > dropbear
view libtommath/bn_mp_cmp_d.c @ 1531:fa733a314bee
use a full prototype (#56)
author | François Perrad <francois.perrad@gadz.org> |
---|---|
date | Tue, 20 Feb 2018 16:13:42 +0100 |
parents | 8bba51a55704 |
children | f52919ffd3b1 |
line wrap: on
line source
#include <tommath_private.h> #ifdef BN_MP_CMP_D_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://libtom.org */ /* compare a digit */ int mp_cmp_d(mp_int * a, mp_digit b) { /* compare based on sign */ if (a->sign == MP_NEG) { return MP_LT; } /* compare based on magnitude */ if (a->used > 1) { return MP_GT; } /* compare the only digit of a to b */ if (a->dp[0] > b) { return MP_GT; } else if (a->dp[0] < b) { return MP_LT; } else { return MP_EQ; } } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */