Remplir un tableau en parcourant un fichier avec istringstream.. ?

**FrostfallDelphi** · 30/01/2017, 11h56

Salut � tous !

Je viens vous demander de l'aide car lorsque j'essaye de remplir un tableau avec les valeurs que j'obtiens en lisant un fichier avec istringstream, les valeurs ne sont pas stock�es dans mon autre tableau.. Elles sont juste lisibles durant la lecture mais ne se stockent pas..

Pire encore, quand j'essaye de remplir un autre tableau avec les valeurs trait�es par le premier ( en l'occurrence le tableau servant � l'extraction de mon fichier ), mon programme plante lamentablement avec un joli "Terminer Maintenant" & cie pourtant je ne d�passe pas la taille de mon tableau.
Mes deux tableaux ont �t� au pr�alablement d�clar�es dans ma classe comme suit :

Code :

S�lectionner tout - Visualiser dans une fen�tre � part

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int tabReadFile[50][50];
int tabCollide[50][50];

Voici la portion de code o� je suis emb�t� :

Code :

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    if (collideFile)
    {
        string index;
 
        while (ligne != 92)
        {
            x = 0;
            ligne++;
            getline(collideFile, index);
            istringstream iss(index);
 
            while (ligne > 60 && iss >> tabReadFile[y][x])
            {
                //je stocke la valeur lue par le tableau dans une variable de type int
                int valeur = tabReadFile[y][x];
               // ici, c'est là que ça plante, en essayant de remplir ce deuxième tableau avec les valeurs du premier..
                tabCollide[y][x] = valeur; 
 
                cout << valeur;
                x++;
            }
            y++;
            cout << endl;
        }
    }

En d�finitive :
Comment pourrais-je m'y prendre afin que mon chaque valeur lue gr�ce � mon istringstream soit bien stock�e dans mon tableau d'int ?

Voici ce que je souhaite lire (entre la ligne 61 et 92 donc les 2 premiers blocs ne m'int�ressent pas, je les fait juste d�filer dans le getline au d�part) :

Code :

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03 03 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
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99 99 99 99 99 99 99 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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Merci infiniment par avance de votre aide les amis ! :-)

**FrostfallDelphi** · 31/01/2017, 11h55

Merci quand m�me, j'ai trouv� une solution alternative parfaitement viable gr�ce � un tableau de vector..

Je poste ici la solution au cas o� quelqu'un serait confront� un jour au m�me probl�me que moi.

Code :

S�lectionner tout - Visualiser dans une fen�tre � part

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    ifstream collideFile("maps/arena.map");
 
    if (collideFile)
    {
        while (!collideFile.eof())
        {
            string index;
            while (ligne != 62)
            {
                ligne++;
                getline(collideFile, index);
            }
 
            if (ligne == 62)
            {
                getline(collideFile, index);
                istringstream iss(index);
                //je (re)crée un vector d'entiers temporaire afin de stocker mes données lues
                vector<int>temp;
                int valeur = 0;
 
                while (iss>>valeur)
                {
                    //j'extrais mes données de mon fichier et les assigne à la variable "valeur" qui elle même est ajouté à mon vecteur temporaire
                    temp.push_back(valeur);
                }
                //je verse mon vecteur temporaire dans mon tableau principal
                tabReadFile.push_back(temp);
            }
        }
        }
 
    collideFile.close();

Au final, tabReadFile contient toutes mes donn�es que je peux extraire avec une boucle for [y][x] comme avec un tableau simple.

Voili voilou !

En esp�rant avoir aid� quelques �gar�s !

**ternel** · 31/01/2017, 14h15

Pourquoi un tableau de vecteur?
Tu connais la longueur du fichier, mais pas celle de chaque ligne?
Ne pourrais-tu pas avoir un en-t�te en d�but de fichier qui donne ces deux quantit�s?

Tes lignes ne font pas toutes la m�me longueur?

Remplir un tableau en parcourant un fichier avec istringstream.. ?

C++

Vue hybride

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