Returning an Object in a function
Hi Experts,
I have the following. In getB( ) function when I return the Object b, would I have any problems. I think If I do " B b = new B( ); " and returning &b would cause problem as the function returns, b goes out of scope. Is it true even in my case?
class A
{
};
class B
{
};
class C
{
public:
C( A& aa);
B& getB( );
private:
A * m_aa;
};
B& C::getB( )
{
B b;
//do some initialization of B here
return b;
}
I have the following. In getB( ) function when I return the Object b, would I have any problems. I think If I do " B b = new B( ); " and returning &b would cause problem as the function returns, b goes out of scope. Is it true even in my case?
class A
{
};
class B
{
};
class C
{
public:
C( A& aa);
B& getB( );
private:
A * m_aa;
};
B& C::getB( )
{
B b;
//do some initialization of B here
return b;
}
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B* C::getB( )
{
B* b = new B;
//do some initialization of B here
return b;
}
would also be an option, yet that would require more attention about deleting the objects. Also
B& C::getB( )
{
B b;
//do some initialization of B here
return b;
}
will *not* work, since the reference returned would be invalid as soon as the function exits.