U++ forum: Welcome to the forum

Re: moveable with assert question [message #52375 is a reply to message #52374]

Mon, 16 September 2019 04:08

mtdew3q
Messages: 181
Registered: July 2010
Location: Upstate, NY (near Canada)

Experienced Member

Hi Mirek and friends:

I solved the problem. It kept telling me something about deleted. Then I switched views from the error view in U++ to the view that gives more detail.

I searched on the Internet and I found this link https:// stackoverflow.com/questions/43954808/why-is-the-move-constru ctor-defined-and-the-assignment-operator-implicitly-delet

I checked my gcc version and then decided to tack on default to one of my methods that didn't have it.

Here is the updated code that works.

class Foo: Moveable<Foo>  {
    
    char * buffer;
    
public:
	Foo()=default;
    Foo(const char * c);
    Foo( const Foo&) =default;
   
    Foo(Foo&&) = default;
    Foo& operator=(Foo&&) = default;
    String Get(){
        return buffer;
    }
    ~Foo() {
     AssertMoveable<Foo>();   
     delete buffer;
    }
};

Foo::Foo(const char * c) {
        if( c!=NULL)
        {
            buffer= new char [strlen(c) + 1];
            strcpy(buffer, c);
        } else
             buffer = NULL;
    }

CONSOLE_APP_MAIN
{
    Foo f("foo");
	Foo && r2 = std::move(f); 
    Foo &  j = r2 ;
    
    Vector<Foo> a, b;
    b.Add(r2);
    
    Foo & myval = b.At(0);
    Cout() << myval.Get();
  
  	
}

thnx : roboloki

Report message to a moderator