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Split complex and quaternion arithmetic and stream operators

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This commit is contained in:
Nick Matteo 2016-05-25 11:37:03 -04:00
parent 42133b805e
commit 69590e2ad2
20 changed files with 801 additions and 734 deletions
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200
sprout/math/quaternion/stream_operators.hpp Normal file
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/*=============================================================================
Copyright (c) 2011-2016 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
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 SPROUT_MATH_QUATERNION_STREAM_OPERATORS_HPP
#define SPROUT_MATH_QUATERNION_STREAM_OPERATORS_HPP
#include <iosfwd>
#include <sstream>
#include <locale>
#include <sprout/config.hpp>
#include <sprout/math/quaternion/quaternion.hpp>
namespace sprout {
namespace math {
//
// operator<<
// operator>>
//
template<typename T, typename Elem, typename Traits>
inline SPROUT_NON_CONSTEXPR std::basic_ostream<Elem, Traits>&
operator<<( std::basic_ostream<Elem, Traits>& lhs, sprout::math::quaternion<T> const& rhs) {
std::basic_ostringstream<Elem, Traits> s;
s.flags(lhs.flags());
s.imbue(lhs.getloc());
s.precision(lhs.precision());
s
<< '('
<< rhs.R_component_1() << ','
<< rhs.R_component_2() << ','
<< rhs.R_component_3() << ','
<< rhs.R_component_4()
<< ')'
;
return lhs << s.str();
}
template<typename T, typename Elem, typename Traits>
inline SPROUT_NON_CONSTEXPR std::basic_istream<Elem, Traits>&
operator>>(std::basic_istream<Elem, Traits>& lhs, sprout::math::quaternion<T>& rhs) {
std::ctype<Elem> const& ct = std::use_facet<std::ctype<Elem> >(lhs.getloc());
T a = T();
T b = T();
T c = T();
T d = T();
sprout::complex<T> u = sprout::complex<T>();
sprout::complex<T> v = sprout::complex<T>();
Elem ch = Elem();
char cc;
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == '(') {
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == '(') {
lhs.putback(ch);
lhs >> u;
a = u.real();
b = u.imag();
if (!lhs.good()) {
goto finish;
}
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == ')') {
rhs = sprout::math::quaternion<T>(a, b);
} else if (cc == ',') {
lhs >> v;
c = v.real();
d = v.imag();
if (!lhs.good()) {
goto finish;
}
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == ')') {
rhs = sprout::math::quaternion<T>(a, b, c, d);
} else {
lhs.setstate(std::ios_base::failbit);
}
} else {
lhs.setstate(std::ios_base::failbit);
}
} else {
lhs.putback(ch);
lhs >> a;
if (!lhs.good()) {
goto finish;
}
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == ')') {
rhs = sprout::math::quaternion<T>(a);
} else if (cc == ',') {
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == '(') {
lhs.putback(ch);
lhs >> v;
c = v.real();
d = v.imag();
if (!lhs.good()) {
goto finish;
}
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == ')') {
rhs = sprout::math::quaternion<T>(a, b, c, d);
} else {
lhs.setstate(std::ios_base::failbit);
}
} else {
lhs.putback(ch);
lhs >> b;
if (!lhs.good()) {
goto finish;
}
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == ')') {
rhs = sprout::math::quaternion<T>(a, b);
} else if (cc == ',') {
lhs >> c;
if (!lhs.good()) {
goto finish;
}
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == ')') {
rhs = sprout::math::quaternion<T>(a, b, c);
} else if (cc == ',') {
lhs >> d;
if (!lhs.good()) {
goto finish;
}
lhs >> ch;
if (!lhs.good()) {
goto finish;
}
cc = ct.narrow(ch, char());
if (cc == ')') {
rhs = sprout::math::quaternion<T>(a, b, c, d);
} else {
lhs.setstate(std::ios_base::failbit);
}
} else {
lhs.setstate(std::ios_base::failbit);
}
} else {
lhs.setstate(std::ios_base::failbit);
}
}
} else {
lhs.setstate(std::ios_base::failbit);
}
}
} else {
lhs.putback(ch);
lhs >> a;
if (!lhs.good()) {
goto finish;
}
rhs = sprout::math::quaternion<T>(a);
}
finish:
return lhs;
}
} // namespace math
} // namespace sprout
#endif // #ifndef SPROUT_MATH_QUATERNION_STREAM_OPERATORS_HPP