c3-lang/libtommath/mp_dr_is_modulus.c
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Hash : bf9507a9
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Date : 2019-10-24T22:02:29
replace mp_bool by stdbool * This gives the advantage that static analysis **understands** bool, but complains about using an enum type instead of bool. * If stdbool.h is not desired, true/false/bool can be replaced using sed as in the no-stdint-h branch. * We already include stdint.h and stdbool.h is not more harmful than this header
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mp_dr_is_modulus.c
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#include "tommath_private.h" #ifdef MP_DR_IS_MODULUS_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ /* determines if a number is a valid DR modulus */ bool mp_dr_is_modulus(const mp_int *a) { int ix; /* must be at least two digits */ if (a->used < 2) { return false; } /* must be of the form b**k - a [a <= b] so all * but the first digit must be equal to -1 (mod b). */ for (ix = 1; ix < a->used; ix++) { if (a->dp[ix] != MP_MASK) { return false; } } return true; } #endif