Private class member not being set

Right I've got an animation class - happy happy joy - and it has an inline function, SetUpdateDelay:

Code:

void SetUpdateDelay(float delay)
{
    m_UpdateDelay = delay;
}

Looks pretty normal; what could go wrong, right? Wrong.

I'm calling this function like so:

Code:

    CAnimation explosion;
    explosion.AddFrame(m_ResourceMgr->GetTexture("./data/Explosion 1.png"));
    explosion.AddFrame(m_ResourceMgr->GetTexture("./data/Explosion 2.png"));
    m_Renderer->AddSceneObject("Explosion", explosion, CVector2<int>(100, 100));
    explosion.SetUpdateDelay(0.05f);

If I step through it, CAnimation::m_UpdateDelay does indeed get set to 0.05. When I step through the update function, according to the debugger m_UpdateDelay is back to 250.0f (it's default value).

What the hell am I doing wrong? I'm going to make the default value 0.05 right now and run that... otherwise I'm f'ing stumped.

>> void SetUpdateDelay(float delay)

That a friend of your explosion instance? OR shouldn't it be

Code:

void CAnimation::SetUpdateDelay(float delay)
{
    m_UpdateDelay = delay;
}

Spaces, I see

May-be something like that? (It seems that you didn't copy and paste the function.)

Code:

void CAnimation::SetUpdateDelay(float delay)
{
    float m_UpdateDelay = delay;
}

That would declare a new local variable and shadow the class member.

Sorry I didn't say before, SetUpdateDelay is an inline member of CAnimation, as in I defined it in the class body. My bad.

In AddSceneObject, are you adding a copy of explosion? If you are, and then you update the local version to 0.05, then the copy will still have the previous version. What do you mean by "When I step through the update function", what update function?