/usr/include/bliss/bignum.hh is in libbliss-dev 0.72-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | #ifndef BLISS_BIGNUM_HH
#define BLISS_BIGNUM_HH
/*
Copyright (c) 2006-2011 Tommi Junttila
Released under the GNU General Public License version 3.
This file is part of bliss.
bliss is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License version 3
as published by the Free Software Foundation.
bliss is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined(BLISS_USE_GMP)
#include <gmp.h>
#endif
#include <cstdlib>
#include <cstdio>
#include "defs.hh"
namespace bliss {
/**
* \brief A very simple class for big integers (or approximation of them).
*
* If the compile time flag BLISS_USE_GMP is set,
* then the GNU Multiple Precision Arithmetic library (GMP) is used to
* obtain arbitrary precision, otherwise "long double" is used to
* approximate big integers.
*/
#if defined(BLISS_USE_GMP)
class BigNum
{
mpz_t v;
public:
/**
* Create a new big number and set it to zero.
*/
BigNum() {mpz_init(v); }
/**
* Destroy the number.
*/
~BigNum() {mpz_clear(v); }
/**
* Set the number to \a n.
*/
void assign(const int n) {mpz_set_si(v, n); }
/**
* Multiply the number with \a n.
*/
void multiply(const int n) {mpz_mul_si(v, v, n); }
/**
* Print the number in the file stream \a fp.
*/
size_t print(FILE* const fp) const {return mpz_out_str(fp, 10, v); }
};
#else
class BigNum
{
long double v;
public:
/**
* Create a new big number and set it to zero.
*/
BigNum(): v(0.0) {}
/**
* Set the number to \a n.
*/
void assign(const int n) {v = (long double)n; }
/**
* Multiply the number with \a n.
*/
void multiply(const int n) {v *= (long double)n; }
/**
* Print the number in the file stream \a fp.
*/
size_t print(FILE* const fp) const {return fprintf(fp, "%Lg", v); }
};
#endif
} //namespace bliss
#endif
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