| Server IP : 172.67.216.182 / Your IP : 162.158.108.90 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /www/server/mysql/src/include/boost_1_59_0/patches/boost/geometry/arithmetic/ |
Upload File : |
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
// Copyright (c) 2008-2012 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
// Use, modification and distribution is subject to 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_GEOMETRY_ARITHMETIC_DETERMINANT_HPP
#define BOOST_GEOMETRY_ARITHMETIC_DETERMINANT_HPP
#include <cstddef>
#include <boost/geometry/core/access.hpp>
#include <boost/geometry/geometries/concepts/point_concept.hpp>
#include <boost/geometry/util/select_coordinate_type.hpp>
#include <boost/numeric/conversion/cast.hpp>
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
template <typename ReturnType, typename U, typename V>
class calculate_determinant
{
template <typename T>
static inline ReturnType rt(T const& v)
{
return boost::numeric_cast<ReturnType>(v);
}
public :
static inline ReturnType apply(U const& ux, U const& uy
, V const& vx, V const& vy)
{
return rt(ux) * rt(vy) - rt(uy) * rt(vx);
}
};
template <typename ReturnType, typename U, typename V>
inline ReturnType determinant(U const& ux, U const& uy
, V const& vx, V const& vy)
{
return calculate_determinant
<
ReturnType, U, V
>::apply(ux, uy, vx, vy);
}
template <typename ReturnType, typename U, typename V>
inline ReturnType determinant(U const& u, V const& v)
{
BOOST_CONCEPT_ASSERT( (concept::ConstPoint<U>) );
BOOST_CONCEPT_ASSERT( (concept::ConstPoint<V>) );
return calculate_determinant
<
ReturnType,
typename geometry::coordinate_type<U>::type,
typename geometry::coordinate_type<V>::type
>::apply(get<0>(u), get<1>(u), get<0>(v), get<1>(v));
}
} // namespace detail
#endif // DOXYGEN_NO_DETAIL
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ARITHMETIC_DETERMINANT_HPP