CNL  2.0.2 (development)
Compositional Numeric Library
sqrt.h
1 
2 // Copyright John McFarlane 2021.
3 // Distributed under the Boost Software License, Version 1.0.
4 // (See accompanying file ../LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
6 
7 #if !defined(CNL_IMPL_ELASTIC_INTEGER_SQRT_H)
8 #define CNL_IMPL_ELASTIC_INTEGER_SQRT_H
9 
10 #include "../cmath/sqrt.h"
11 #include "definition.h"
12 
14 namespace cnl {
21 
22  template<int Digits, class Narrowest>
23  [[nodiscard]] constexpr auto sqrt(elastic_integer<Digits, Narrowest> const& x)
24  {
25  using result_type = elastic_integer<(Digits + 1) / 2, Narrowest>;
26  return _impl::from_rep<result_type>(sqrt(_impl::to_rep(x)));
27  }
28 }
29 
30 #endif // CNL_IMPL_ELASTIC_INTEGER_SQRT_H
cnl::sqrt
constexpr auto sqrt(Integer const &x)
integer overload of cnl::sqrt
Definition: sqrt.h:25
cnl
compositional numeric library
Definition: abort.h:15
cnl::elastic_integer
_impl::wrapper< typename elastic_tag< Digits, Narrowest >::rep, elastic_tag< Digits, Narrowest > > elastic_integer
An integer type with auto-widening operators.
Definition: definition.h:39