need help with writing to text file / reading from text file
Hi,
I have an array of structures allowing user to enter info on 5 stocks. I have calculated initial cost, current cost, and profit. I have also bubble sorted the array of structures alphabetically by stock name and printed sorted array.
PROBLEM: I'm trying to save array of structures to a text file, retrieve it and then print the text file. I've successfully saved to the text file, but when I have the program retrieve the text file and print out the file, I get a problem. Why is the purchase date always being changed to "purchase" instead of staying as the date that is correctly listed in the text file?
Code:
#include<stdio.h>
#include<string.h>
#define SIZE 5
struct Stock
{
char stock_name[9], purchase_date[9];
int num_shares;
float buying_price, current_price, yearly_fees, initial_cost, current_cost, profit;
};
void load(struct Stock s[], int n)
{
for(int i=0; i<n; i++)
{
printf("Enter stock name: ");
gets(s[i].stock_name);
printf("Enter purchase date: ");
gets(s[i].purchase_date);
printf("Enter number of shares: ");
scanf("%d", &s[i].num_shares);
printf("Enter buying price per share: ");
scanf("%f", &s[i].buying_price);
printf("Enter current price per share: ");
scanf("%f", &s[i].current_price);
printf("Enter yearly fees: ");
scanf("%f", &s[i].yearly_fees);
printf("\n");
s[i].initial_cost = s[i].num_shares * s[i].buying_price;
s[i].current_cost = s[i].num_shares * s[i].current_price;
s[i].profit = s[i].current_cost - s[i].initial_cost - s[i].yearly_fees;
fflush(stdin);
}
}
void sortStock(Stock s[], int n)
{
int i, j;
char t[9];
for(i=0; i<n-1; i++)
for(j=0; j<n-1; j++)
if (strcmp(s[j].stock_name, s[j+1].stock_name)>0)
{
strcpy(t, s[j].stock_name);
strcpy(s[j].stock_name, s[j+1].stock_name);
strcpy(s[j+1].stock_name, t);
}
}
void saveText(Stock s[], int n)
{
int j;
FILE *f;
f=fopen("c:\\stock_data.txt","w");
for(j=0; j<n; j++)
{
fprintf(f, "%s\n", s[j].stock_name);
fprintf(f, "Purchase Date: %s\n", s[j].purchase_date);
fprintf(f, "Intial Cost: $%0.2f\n", s[j].initial_cost);
fprintf(f, "Current Cost: $%0.2f\n", s[j].current_cost);
fprintf(f, "Profit: $%0.2f\n\n", s[j].profit);
}
fclose(f);
}
void retText(struct Stock s[], int n)
{
FILE *f;
int j;
f=fopen("c:\\stock_data.txt","r");
for(j=0; j<n; j++)
{
fgets(s[j].stock_name, sizeof(s[j].stock_name), f);
fgets(s[j].purchase_date, sizeof(s[j].purchase_date),f);
fscanf(f, "%f %f %f\n", s[j].initial_cost, s[j].current_cost, s[j].profit);
}
fclose(f);
}
void print(Stock s[], int n)
{
for(int j=0; j<n; j++)
{
printf("Stock Name: %s", s[j].stock_name);
printf("\nPurchase Date: %s\n", s[j].purchase_date);
printf("Initial Cost: $%0.2f\n", s[j].initial_cost);
printf("Current Cost: $%0.2f\n", s[j].current_cost);
printf("Profit: $%0.2f\n\n", s[j].profit);
}
}
void main()
{
Stock s[SIZE];
load(s, SIZE);
sortStock(s, SIZE);
print(s, SIZE);
saveText(s, SIZE);
retText(s, SIZE);
print(s, SIZE);
}
