/*
Modifies the record at n
*/
void modifyRecord(int n, FILE * file) {
int recnum = n;
char buffer[LINESIZE];
char buffer2[LINESIZE];
char id[11];
int grade;
n = 15 * (n - 1);
if (fseek(file, n, SEEK_SET) != 0) {
perror("fseek");
}
if (fscanf(file, "%s %s", buffer, buffer2) == EOF) {
printf("\nRecord %d does not exist!\n", recnum);
return;
}
printf("\nModifying record %d:\n", recnum);
printf("%-3d %-8s %-3s\n", recnum, buffer, buffer2);
if (fseek(file, n, SEEK_SET) != 0) {
perror("fseek");
}
if (get_id(id) == 0 && get_grade(&grade) == 0) {
fprintf(file, "%s %-3d", id, grade);
printf("\n%s\n", "Modifying record...");
} else {
printf("\n%s\n", "Exiting modify mode...");
}
}
void stock_data(char *buff)
{
int i, j, k;
i = 0;
j = 0;
k = 0;
while (*(buff + i) != 0)
{
if (buff[i] == ';')
{
check_get(j);
j++;
k = 0;
}
else
{
if (j == 0)
get_firstname(buff, k, i);
if (j == 1)
get_lastname(buff, k, i);
if (j == 2)
get_email(buff, k, i);
if (j == 3)
get_grade(buff, k, i);
if (j == 4)
get_city(buff, k, i);
k++;
}
i++;
}
check_get(4);
}
int main()
{
int mark;
char grade;
printf("enter your mark:");
scanf("%d",&mark);
grade = get_grade(mark);
printf("%c\n",grade);
return 0;
}
/*
Appends a record to the file
*/
void append(FILE *file) {
char id[11];
int grade;
if (fseek(file, 0, SEEK_END) != 0) {
perror("fseek");
}
printf("\n%s\n", "Append a record");
if (get_id(id) == 0 && get_grade(&grade) == 0) {
fprintf(file, "%s %-3d\n", id, grade);
printf("\n%s\n", "Appending record...");
} else {
printf("\n%s\n", "Exiting append mode...");
}
}
