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32 lines
885 B
C
32 lines
885 B
C
#include "tommath_private.h"
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#ifdef BN_MP_GET_DOUBLE_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis
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*
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* LibTomMath is a library that provides multiple-precision
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* integer arithmetic as well as number theoretic functionality.
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*
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* The library was designed directly after the MPI library by
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* Michael Fromberger but has been written from scratch with
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* additional optimizations in place.
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*
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* SPDX-License-Identifier: Unlicense
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*/
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double mp_get_double(const mp_int *a)
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{
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int i;
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double d = 0.0, fac = 1.0;
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for (i = 0; i < DIGIT_BIT; ++i) {
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fac *= 2.0;
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}
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for (i = USED(a); i --> 0;) {
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d = (d * fac) + (double)DIGIT(a, i);
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}
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return (mp_isneg(a) != MP_NO) ? -d : d;
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}
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#endif
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/* ref: HEAD -> master, tag: v1.1.0 */
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/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
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/* commit time: 2019-01-28 20:32:32 +0100 */
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