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UTC502/24-10-17/TestTDsolo.c

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+/****************************************************************/
+/* Exemple de manipulation d’un fichier: */
+/* création, positionnement, fermeture */
+/****************************************************************/
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+typedef struct student {
+char nom[10];
+int note;
+} eleve;
+int main()
+{
+int fd, i, ret;
+eleve un_eleve;
+fd = open ("./eleve.txt", O_RDWR);
+if (fd == -1)
+perror ("prob open");
+i = 0;
+while (i<4)
+{
+printf ("Donnez le nom de l’élève \n");
+scanf ("%s", un_eleve.nom);
+printf ("Donnez la note de l’élève \n");
+scanf ("%d", &un_eleve.note);
+write (fd, &un_eleve, sizeof(eleve) );
+i = i + 1;
+}
+ret = lseek(fd, SEEK_SET, 0);
+if (ret==-1)
+perror ("prob lseek");
+printf ("la nouvelle position est %d\n", ret);
+i = 0;
+while(i<4)
+{
+read (fd, &un_eleve, sizeof(eleve));
+printf ("le nom et la note de l’élève sont %s, %d\n", 
+un_eleve.nom,
+un_eleve.note);
+i = i + 1;
+}
+close(fd);
+return 0;
+}