/usr/include/boost/units/pow.hpp is in libboost1.55-dev 1.55.0+dfsg-3.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | // Boost.Units - A C++ library for zero-overhead dimensional analysis and
// unit/quantity manipulation and conversion
//
// Copyright (C) 2003-2008 Matthias Christian Schabel
// Copyright (C) 2008 Steven Watanabe
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_UNITS_POW_HPP
#define BOOST_UNITS_POW_HPP
#include <boost/math_fwd.hpp>
#include <boost/type_traits/is_integral.hpp>
#include <boost/units/operators.hpp>
#include <boost/units/static_rational.hpp>
#include <boost/units/detail/static_rational_power.hpp>
/// \file
/// \brief Raise values to exponents known at compile-time.
namespace boost {
namespace units {
/// raise a value to a @c static_rational power.
template<class Rat,class Y>
inline typename power_typeof_helper<Y,Rat>::type
pow(const Y& x)
{
return power_typeof_helper<Y,Rat>::value(x);
}
/// raise a value to an integer power.
template<long N,class Y>
inline typename power_typeof_helper<Y,static_rational<N> >::type
pow(const Y& x)
{
return power_typeof_helper<Y,static_rational<N> >::value(x);
}
#ifndef BOOST_UNITS_DOXYGEN
/// raise @c T to a @c static_rational power.
template<class T, long N,long D>
struct power_typeof_helper<T, static_rational<N,D> >
{
typedef typename mpl::if_<boost::is_integral<T>, double, T>::type internal_type;
typedef detail::static_rational_power_impl<static_rational<N, D>, internal_type> impl;
typedef typename impl::type type;
static type value(const T& x)
{
return impl::call(x);
}
};
/// raise @c float to a @c static_rational power.
template<long N,long D>
struct power_typeof_helper<float, static_rational<N,D> >
{
// N.B. pathscale doesn't accept inheritance for some reason.
typedef power_typeof_helper<double, static_rational<N,D> > base;
typedef typename base::type type;
static type value(const double& x)
{
return base::value(x);
}
};
#endif
/// take the @c static_rational root of a value.
template<class Rat,class Y>
typename root_typeof_helper<Y,Rat>::type
root(const Y& x)
{
return root_typeof_helper<Y,Rat>::value(x);
}
/// take the integer root of a value.
template<long N,class Y>
typename root_typeof_helper<Y,static_rational<N> >::type
root(const Y& x)
{
return root_typeof_helper<Y,static_rational<N> >::value(x);
}
#ifndef BOOST_UNITS_DOXYGEN
/// take @c static_rational root of an @c T
template<class T, long N,long D>
struct root_typeof_helper<T,static_rational<N,D> >
{
// N.B. pathscale doesn't accept inheritance for some reason.
typedef power_typeof_helper<T, static_rational<D,N> > base;
typedef typename base::type type;
static type value(const T& x)
{
return(base::value(x));
}
};
#endif
} // namespace units
} // namespace boost
#endif // BOOST_UNITS_STATIC_RATIONAL_HPP
|