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/*
* Copyright (c) 2011, Michael Lehn
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1) Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3) Neither the name of the FLENS development group nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(MPFR_REAL_HPP) && !defined(FLENS_HACKS_MPFR_REAL_TCC)
#define FLENS_HACKS_MPFR_REAL_TCC 1
#include <external/real.hpp>
#include <flens/hacks/mpfr_real.h>
/*
* NOTE: This hack requires that in the mpfr::real class the 'x_' attribute
* is made public!
*/
namespace mpfr {
//
// aux-functions used in numeric_limits
//
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
const mpfr::real<prec_,rnd_>
nextabove(const mpfr::real<prec_,rnd_> &x)
{
mpfr::real<prec_,rnd_> tmp = x;
mpfr_nextabove(tmp.x_);
return tmp;
}
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
const mpfr::real<prec_,rnd_>
get_max()
{
const unsigned long emax = mpfr_get_emax();
mpfr::real<prec_,rnd_> tmp(1);
mpfr_mul_2ui(tmp.x_, tmp.x_, emax-1, rnd_);
return tmp;
}
} // namespace mpfr
//
// numeric_limits
//
namespace std {
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
const mpfr::real<prec_,rnd_>
numeric_limits<mpfr::real<prec_,rnd_> >::max_
= mpfr::get_max<prec_,rnd_>();
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
const mpfr::real<prec_,rnd_>
numeric_limits<mpfr::real<prec_,rnd_> >::min_
= mpfr::nextabove(T(0));
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
const mpfr::real<prec_,rnd_>
numeric_limits<mpfr::real<prec_,rnd_> >::eps_
= mpfr::nextabove(T(1)) - T(1);
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
const mpfr::real<prec_,rnd_>
numeric_limits<mpfr::real<prec_,rnd_> >::epsilon()
{
return eps_;
}
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
const mpfr::real<prec_,rnd_>
numeric_limits<mpfr::real<prec_,rnd_> >::max()
{
return max_;
}
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
const mpfr::real<prec_,rnd_>
numeric_limits<mpfr::real<prec_,rnd_> >::min()
{
return min_;
}
//
// import isnan to namespace std
//
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
bool
isnan(const mpfr::real<prec_,rnd_> &x)
{
return mpfr_nan_p(x.x_);
}
//
// import mpfr_real to namespace std
//
template <mpfr::real_prec_t prec_, mpfr::real_rnd_t rnd_>
int
signbit(const mpfr::real<prec_,rnd_> &x)
{
return mpfr_signbit(x.x_);
}
} // namespace std
#endif // defined(MPFR_REAL_HPP) && !defined(FLENS_HACKS_MPFR_REAL_TCC)
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