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105 lines
2.8 KiB
C++
Executable File
105 lines
2.8 KiB
C++
Executable File
// Copyright David Abrahams 2002.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/python/operators.hpp>
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#include <boost/python/class.hpp>
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#include <boost/python/module.hpp>
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#include <boost/python/def.hpp>
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#include "test_class.hpp"
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//#include <boost/python/str.hpp>
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#if __GNUC__ != 2
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# include <ostream>
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#else
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# include <ostream.h>
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#endif
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// Just use math.h here; trying to use std::pow() causes too much
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// trouble for non-conforming compilers and libraries.
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#include <math.h>
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using namespace boost::python;
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struct X : test_class<>
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{
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typedef test_class<> base_t;
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X(int x) : base_t(x) {}
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X const operator+(X const& r) const { return X(value() + r.value()); }
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// typedef int (X::*safe_bool)() const;
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// operator safe_bool() const { return value() != 0 ? &X::value : 0; }
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};
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X operator-(X const& l, X const& r) { return X(l.value() - r.value()); }
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X operator-(int l, X const& r) { return X(l - r.value()); }
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X operator-(X const& l, int r) { return X(l.value() - r); }
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X operator-(X const& x) { return X(-x.value()); }
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X& operator-=(X& l, X const& r) { l.set(l.value() - r.value()); return l; }
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bool operator<(X const& x, X const& y) { return x.value() < y.value(); }
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bool operator<(X const& x, int y) { return x.value() < y; }
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bool operator<(int x, X const& y) { return x < y.value(); }
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X abs(X x) { return X(x.value() < 0 ? -x.value() : x.value()); }
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X pow(X x, int y)
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{
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return X(int(pow(double(x.value()), double(y))));
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}
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X pow(X x, X y)
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{
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return X(int(pow(double(x.value()), double(y.value()))));
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}
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int pow(int x, X y)
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{
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return int(pow(double(x), double(y.value())));
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}
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std::ostream& operator<<(std::ostream& s, X const& x)
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{
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return s << x.value();
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}
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BOOST_PYTHON_MODULE(operators_ext)
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{
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class_<X>("X", init<int>())
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.def("value", &X::value)
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.def(self + self)
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.def(self - self)
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.def(self - int())
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.def(other<int>() - self)
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.def(-self)
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.def(self < other<int>())
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.def(self < self)
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.def(1 < self)
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.def(self -= self)
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.def(abs(self))
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.def(str(self))
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.def(pow(self,self))
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.def(pow(self,int()))
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.def(pow(int(),self))
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.def(
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!self
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// "not self" is legal here but causes friction on a few
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// nonconforming compilers; it's cute because it looks
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// like python, but doing it here doesn't prove much and
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// just causes tests to fail or complicated workarounds to
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// be enacted.
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)
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;
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class_<test_class<1> >("Z", init<int>())
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.def(int_(self))
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.def(float_(self))
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.def(complex_(self))
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;
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}
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#include "module_tail.cpp"
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