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146 lines
3.0 KiB
146 lines
3.0 KiB
#include "tp12.h"
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int chargeFmatieres(char *nomFich, Mat **tmat, int tmax)
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{
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int i = 0;
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Mat m;
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FILE *flot;
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printf("%d\n", i);
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flot = fopen(nomFich, "r");
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if(flot == NULL)
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{
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printf("Pb d'ouverture du fichier %s.\n", nomFich);
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return -1;
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}
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m = lireMat(flot);
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while(!feof(flot))
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{
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if(i == tmax)
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{
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printf("tbl plein !!!\n");
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fclose(flot);
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return -2;
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}
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tmat[i] = (Mat *)malloc(sizeof(Mat));
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if(tmat[i] == NULL)
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{
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printf("Pb du tableau !\n");
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fclose(flot);
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return -3;
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}
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*tmat[i] = m;
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i = i +1;
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m = lireMat(flot);
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}
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fclose(flot);
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return i;
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}
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Mat lireMat(FILE *flot)
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{
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Mat m;
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fscanf(flot, "%s%d", m.code, &m.coef);
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fgets(m.design, 30, flot);
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m.design[strlen(m.design)-1] = '\0';
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return m;
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}
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void afficheMat(Mat m)
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{
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printf("%s\t%d\t%s\n", m.code, m.coef, m.design);
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}
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void afficheTmat(Mat **tMat, int nbmat)
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{
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int i;
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for(i = 0; i < nbmat; i++)
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afficheMat(*tMat[i]);
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printf("\n");
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}
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void libereEspaceA(Mat *tmat[], int nb)
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{
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int i;
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for(i = 0; i < nb; i++)
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free(tmat[i]);
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}
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void sauvTbin(Mat *tab[], int nb)
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{
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int i;
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FILE *flot;
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flot = fopen("matieres.bin", "wb");
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if(flot == NULL)
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{
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printf("Pb d'ouverture du fichier matieres.bin");
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return;
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}
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fprintf(flot, "%d\n", &nb);
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for(i = 0; i < nb; i++)
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fwrite(tab[i], sizeof(Mat), 1, flot);
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fclose(flot);
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}
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int rechdich(char *code, Mat **tmat, int nbmat, int *trouve)
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{
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int inf, sup, m;
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inf = 0;
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sup = nbmat -1;
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while(inf <= sup)
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{
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m = (inf + sup)/2;
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if(strcmp(code, tmat[m]->code) == 0)
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{
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*trouve = 1;
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return m;
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}
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if(strcmp(code, tmat[m]->code) < 0)
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sup = m - 1;
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else inf = m+ 1;
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}
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*trouve = 0;
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return inf;
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}
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int supprime(Mat **tMat, int nbmat)
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{
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char code[6], rep;
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int pas, trouve, i;
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printf("Donnez le code de la matière à supprimer :\n");
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scanf("%s%*c", code);
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pas = rechdich(code, tMat, nbmat, &trouve);
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if(trouve == 0)
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printf("Aucune matière n'as été trouvé\n");
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else{
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afficheMat(*tMat[pas]);
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printf("Vouez vous vraiment supprimer ? :\n");
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scanf("%c", &rep);
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if(rep == 'o')
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{
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free(tMat[pas]);
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for(i = pas; i < nbmat-1; i++)
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tMat[i] = tMat[i + 1];
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nbmat = nbmat - 1;
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}
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}
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return nbmat;
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}
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void global(void)
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{
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Mat *tab[50];
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int nb;
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char nomFich[20];
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printf("Donnez le nom du fichier :\n");
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scanf("%s", nomFich);
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nb = chargeFmatieres(nomFich, tab, 50);
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if(nb < 0)
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return;
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afficheTmat(tab, nb);
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nb = supprime(tab, nb);
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afficheTmat(tab, nb);
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nb = supprime(tab, nb);
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afficheTmat(tab, nb);
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sauvTbin(tab, nb);
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libereEspaceA(tab, nb);
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} |