33 lines
872 B
C
33 lines
872 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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* The library is free for all purposes without any express
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* guarantee it works.
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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: $Format:%D$ */
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/* git commit: $Format:%H$ */
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/* commit time: $Format:%ai$ */
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