Sunday, November 1, 2009

some coding doesn't understand.

What are these following sentences mean?
1. SNode(Dstring Data, SNode* next=(SNode*) 0);
2. this->top = (SNode*)0;
These sentences are shrinked. It should be several sentence for each.
Can somebody help me extend those sentences?
Thanks ahead.
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2 comments:

  1. FardadNovember 2, 2009 at 8:59 AM

    SNode(Dstring Data, SNode* next=(SNode*) 0)
    well there nothing to expand here. I think you problem is casting 0 to SNode*.
    Would this make your life easier?
    1. SNode(Dstring Data, SNode* next=NULL);
    2. this->top = NULL;
    Let me know!

    ReplyDelete
  2. qinzhiNovember 2, 2009 at 6:46 PM

    Thank you Prof. Fardad.
    yes, change to "Null" is easy for me to understand. I'm very happy learned casting in this sentence. I know (int) variable is casting, but I didn't realize (SNode*) 0 is also casting.

    ReplyDelete

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