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📄 mpf_div_d.c

📁 精确小数算法库,可以实现任意长度的精确小数算法,用c语言实现,主要用于密码学中小数计算,验证可用
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/* LibTomFloat, multiple-precision floating-point library * * LibTomFloat is a library that provides multiple-precision * floating-point artihmetic as well as trigonometric functionality. * * This library requires the public domain LibTomMath to be installed. *  * This library is free for all purposes without any express * gurantee it works * * Tom St Denis, tomstdenis@iahu.ca, http://float.libtomcrypt.org */#include <tomfloat.h>int  mpf_div_d(mp_float *a, long b, mp_float *c){   int      err;   mp_float tmp;   if ((err = mpf_init(&tmp, c->radix)) != MP_OKAY) {      return err;   }   if ((err = mpf_const_d(&tmp, b)) != MP_OKAY)              { goto __ERR; }   err = mpf_div(a, &tmp, c);__ERR:   mpf_clear(&tmp);   return err;}

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