// Copyright David Abrahams 2002. // 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) #include #include #include #include #include "test_class.hpp" #include #include #include #include //#include // Just use math.h here; trying to use std::pow() causes too much // trouble for non-conforming compilers and libraries. #include #if __GNUC__ != 2 # include #else # include #endif using namespace boost::python; 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(); } struct number : boost::integer_arithmetic { explicit number(long x_) : x(x_) {} operator long() const { return x; } template number& operator+=(T const& rhs) { x += rhs; return *this; } template number& operator-=(T const& rhs) { x -= rhs; return *this; } template number& operator*=(T const& rhs) { x *= rhs; return *this; } template number& operator/=(T const& rhs) { x /= rhs; return *this; } template number& operator%=(T const& rhs) { x %= rhs; return *this; } long x; }; BOOST_PYTHON_MODULE(operators_ext) { class_("X", init()) .def("value", &X::value) .def(self + self) .def(self - self) .def(self - int()) .def(other() - self) .def(-self) .def(self < other()) .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( !self // "not self" is legal here but causes friction on a few // nonconforming compilers; it's cute because it looks // like python, but doing it here doesn't prove much and // just causes tests to fail or complicated workarounds to // be enacted. ) ; class_("number", init()) // interoperate with self .def(self += self) .def(self + self) .def(self -= self) .def(self - self) .def(self *= self) .def(self * self) .def(self /= self) .def(self / self) .def(self %= self) .def(self % self) // Convert to Python int .def(int_(self)) // interoperate with long .def(self += long()) .def(self + long()) .def(long() + self) .def(self -= long()) .def(self - long()) .def(long() - self) .def(self *= long()) .def(self * long()) .def(long() * self) .def(self /= long()) .def(self / long()) .def(long() / self) .def(self %= long()) .def(self % long()) .def(long() % self) ; class_ >("Z", init()) .def(int_(self)) .def(float_(self)) .def(complex_(self)) ; } #include "module_tail.cpp"