diag0206.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 21 行

// No preference is given to user-defined conversion by constructor
//      or conversion function or vice versa
class B;
class A {
    public:
        A( B );
};
class B {
    public:
        operator A();
};
void f( A );
void g( B b )
{
    f( b );     // ambiguous
                // f( A( b ) ) - constructor
                // f( A( b ) ) - conversion function
}

#error at least one error