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Problem with dynamic lists

This is a discussion on Problem with dynamic lists within the C Programming forums, part of the General Programming Boards category; Found the problem, it's in the list creation, I have something that's creating a loop in the list: Code: int ...

  1. #1
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    Problem with dynamic lists

    Found the problem, it's in the list creation, I have something that's creating a loop in the list:
    Code:
    int insere_col_inicial(lista_coelhos *base,int id_colonia){    lista_coelhos *aux,*procura,*seguinte;
        int tamanho;
        int x;
        int y;
    
    
        x = rand()*1.0*MAX_X/RAND_MAX;
        y = rand()*1.0*MAX_X/RAND_MAX;
        tamanho = ceil(abs((x -y)%30))+1;/*To avoid size zero of the colonies*/    
        
        aux=(lista_coelhos*)calloc(1,sizeof(lista_coelhos));
        if(aux==NULL)
        {
            return -1;
        }    
    
    
        aux->id_colonia=id_colonia;
        aux->x=x;
        aux->y=y;
        aux->tamanho=tamanho;
    
    
        procura=base;
        seguinte=base->prox;
    
    
        while(seguinte != NULL && tamanho>seguinte->tamanho)
        {
            procura=procura->prox;
            seguinte=seguinte->prox;
        }
    
    
        aux->prox=seguinte;
        procura->prox=aux;
    
    
        return 0;
    }
    here's where I call the function:
    Code:
    for(i=1;i<=100;i++) /*To insert inicial colonies*/
        {
            nova_id=id_colonia+1;
            insere_col_inicial(base,nova_id);
            id_colonia=nova_id;
        }
    Last edited by Chinchila; 12-13-2012 at 09:08 AM.

  2. #2
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    Quote Originally Posted by Chinchila View Post
    Found the problem
    Excellent! Erm... what is your problem?

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    The problem is, I want to create a list organized by tamanho (it's one of my variables), but something is making a loop in the list, when I reach the end of the list it has a pointer to an element in the middle and I don't understand why

  4. #4
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    The only obvious problem I see is that this function does not allow you to insert at the head of the list.
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    The head, you mean the end or the beggining? It's supposed to have the first element in blank, because of the searches

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