## Mercurial > dropbear

### view libtommath/bn_mp_prime_is_divisible.c @ 1490:9b87cbe931e3

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build: Remove unused constructs: `space' and `AC_PROG_MAKE_SET'
The makefile variable `space' is never used.
The autoconf output variable `SET_MAKE' is never used, so the
autoconf macro `AC_PROG_MAKE_SET' has been removed.

author | Michael Witten <mfwitten@gmail.com> |
---|---|

date | Mon, 31 Jul 2017 23:55:52 +0000 |

parents | 8bba51a55704 |

children | f52919ffd3b1 |

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line source

#include <tommath_private.h> #ifdef BN_MP_PRIME_IS_DIVISIBLE_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 */ /* determines if an integers is divisible by one * of the first PRIME_SIZE primes or not * * sets result to 0 if not, 1 if yes */ int mp_prime_is_divisible (mp_int * a, int *result) { int err, ix; mp_digit res; /* default to not */ *result = MP_NO; for (ix = 0; ix < PRIME_SIZE; ix++) { /* what is a mod LBL_prime_tab[ix] */ if ((err = mp_mod_d (a, ltm_prime_tab[ix], &res)) != MP_OKAY) { return err; } /* is the residue zero? */ if (res == 0) { *result = MP_YES; return MP_OKAY; } } return MP_OKAY; } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */