%module cpp20_spaceship_operator %rename(spaceship) operator<=>; %inline %{ #include int v = (-1 <=> 1 > 0) ? 7 : 42; // We use !(a >= b) here due to limited support for (a < b) in SWIG's parser. #define ALIEN !(0 <=> 1 >= 0) const int SPACE = 3 <=> 3 == 0; struct A { int v; explicit A(int v_) : v(v_) { } }; int operator<=>(const A& a, const A& b) { return a.v - b.v; } int f(int v = (-1 <=> 1 > 0) ? 7 : 42) { return v; } %} %constant int COMET = (4 <=> 2 > 0);