c3-lang/libtommath/mp_get_double.c
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Hash : 1cc289d2
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Date : 2019-11-09T20:23:03
better use of mp_isneg() and mp_iszero()
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mp_get_double.c
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#include "tommath_private.h" #ifdef MP_GET_DOUBLE_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ double mp_get_double(const mp_int *a) { int i; double d = 0.0, fac = 1.0; for (i = 0; i < MP_DIGIT_BIT; ++i) { fac *= 2.0; } for (i = a->used; i --> 0;) { d = (d * fac) + (double)a->dp[i]; } return mp_isneg(a) ? -d : d; } #endif