libs/python/test/operators.cpp
// Copyright David Abrahams 2002. Permission to copy, use,
// modify, sell and distribute this software is granted provided this
// copyright notice appears in all copies. This software is provided
// "as is" without express or implied warranty, and with no claim as
// to its suitability for any purpose.
#include <boost/python/operators.hpp>
#include <boost/python/class.hpp>
#include <boost/python/module.hpp>
#include <boost/python/def.hpp>
#include "test_class.hpp"
#if __GNUC__ != 2
# include <ostream>
#else
# include <ostream.h>
#endif
// Just use math.h here; trying to use std::pow() causes too much
// trouble for non-conforming compilers and libraries.
#include <math.h>
#if BOOST_WORKAROUND(BOOST_MSVC, == 1310)
// vc7.1 seems to require this (incorrectly) in order to use the "not" keyword
#include <ciso646>
#elif BOOST_WORKAROUND(BOOST_MSVC, <= 1300) \
|| BOOST_WORKAROUND(__GNUC__, <= 2) \
|| BOOST_WORKAROUND(__EDG_VERSION__, <= 238)
#define not !
#endif
using namespace boost::python;
struct X : test_class<>
{
typedef test_class<> base_t;
X(int x) : base_t(x) {}
X const operator+(X const& r) const { return X(value() + r.value()); }
// typedef int (X::*safe_bool)() const;
// operator safe_bool() const { return value() != 0 ? &X::value : 0; }
};
X operator-(X const& l, X const& r) { return X(l.value() - r.value()); }
X operator-(int l, X const& r) { return X(l - r.value()); }
X operator-(X const& l, int r) { return X(l.value() - r); }
X operator-(X const& x) { return X(-x.value()); }
X& operator-=(X& l, X const& r) { l.set(l.value() - r.value()); return l; }
bool operator<(X const& x, X const& y) { return x.value() < y.value(); }
bool operator<(X const& x, int y) { return x.value() < y; }
bool operator<(int x, X const& y) { return x < y.value(); }
X abs(X x) { return X(x.value() < 0 ? -x.value() : x.value()); }
X pow(X x, int y)
{
return X(int(pow(double(x.value()), double(y))));
}
X pow(X x, X y)
{
return X(int(pow(double(x.value()), double(y.value()))));
}
int pow(int x, X y)
{
return int(pow(double(x), double(y.value())));
}
std::ostream& operator<<(std::ostream& s, X const& x)
{
return s << x.value();
}
BOOST_PYTHON_MODULE(operators_ext)
{
class_<X>("X", init<int>())
.def("value", &X::value)
.def(self + self)
.def(self - self)
.def(self - int())
.def(other<int>() - self)
.def(-self)
.def(self < other<int>())
.def(self < self)
.def(1 < self)
.def(self -= self)
.def(abs(self))
.def(str(self))
.def(pow(self,self))
.def(pow(self,int()))
.def(pow(int(),self))
.def(not self)
;
class_<test_class<1> >("Z", init<int>())
.def(int_(self))
.def(float_(self))
.def(complex_(self))
;
}
#include "module_tail.cpp"