Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>1) Type casting is to tell the compiler that the object to the right side of <code>=</code> is a type of object which is on the left side of <code>=</code>. So there is no initialization taking place here. We are not creating a new object, simply <strong>type casting</strong> it by which compiler assumes that the object belong to that class.</p> <p>2)Following is the definition of <code>CCPointObject</code> class</p> <pre><code>class CCPointObject : CCObject { CC_SYNTHESIZE(CCPoint, m_tRatio, Ratio) CC_SYNTHESIZE(CCPoint, m_tOffset, Offset) CC_SYNTHESIZE(CCNode *,m_pChild, Child) // weak ref static CCPointObject * pointWithCCPoint(CCPoint ratio, CCPoint offset) { CCPointObject *pRet = new CCPointObject(); pRet-&gt;initWithCCPoint(ratio, offset); pRet-&gt;autorelease(); return pRet; } bool initWithCCPoint(CCPoint ratio, CCPoint offset) { m_tRatio = ratio; m_tOffset = offset; m_pChild = NULL; return true; } }; </code></pre> <p>Dont know exactly where did you put the log but. <code>setOffset</code> and <code>getOffset</code> are defined implicitly inside the macro <code>CC_SYNTHESIZE</code>. No doubt these will be called, otherwise the complier raises an error or the app will crash during runtime. </p> <p>3)<code>CC_SYNTHESIZE(struct _ccArray *, m_pParallaxArray, ParallaxArray)</code> Here <code>m_pParallaxArray</code> is used to store <code>CCPointObject</code>, where each <code>CCPointObject</code> holds information of exactly one child of parallax node, i.e reference to the child itself <code>m_pChild</code> and <code>m_pChild</code> <code>m_tRatio</code></p> <p>You can see definition of <code>CCPointObject</code> class in <code>CCParallaxNodeExtras.cpp</code> and <code>CCParallaxNode.cpp</code></p>
    singulars
    1. This table or related slice is empty.
    1. POExplaination of RayWenderlich's CCParallaxNodeExtras.h
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USSouandios
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POExplaination of RayWenderlich's CCParallaxNodeExtras.h
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    1. COMany many thanks Souandios, That helped a lot.
      singulars
      1. PO
      1. USBitKnight
    2. CONow when I looked in to CCparallaxNode.cpp, There's a class CCPointObject and indeed, m_pParallaxArray stores CCPointObject. What I can't understand is that the CCPointObject is not visible in CCParallaxNodeExtras.cpp so, to get the access,we declare another CCPointObject keeping the data members same (even the variable names are same but member functions are not exactly same) and after casting it gives the object of Original CCPointObject. I mean, can we really do that? just redefine the class with same name and data member and typecast to get the original object.
      singulars
      1. PO
      1. USBitKnight
    3. COIs that a concept of C++ that I dont know? and if we can do this then the structure of entire class (including member function) shouldn't be same?
      singulars
      1. PO
      1. USBitKnight
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload