Hello guys this is my second post. I was wondering about this little Easter egg I'm putting in my win32 console app for a C Programming class at my college assignment.
It's very simple, and by simple I mean the idea is that if the user puts in "Open the bay doors" in the first input line, using strncmp he will get an output of "I'm sorry Dave, I can't do that" (Its from 2001:Space Oddysey. I want to see if the teacher notices.) and closes the app.
So my only question is, what line of code should I use to display the message after the user inputs the specific line long enough so that the user can read it, and than safely exit the app.
I'm on win 7
Using Visual c++ 2008 Express
Here's the entire app(With strncmp already done, just need the timer and exit call):
Code:#include<stdio.h>#include<stdlib.h>
#include<string.h>
/////////////////
#define SIZE 5
/////////////////
struct Stock
{
char name[10];
int numShares;
float buyShare,currPrice,fees;
float initCost,currCost,profit;
};
/* Load the data from the keyboard and calculates
the Initial Cost, Current Cost, and Profit
for each stock via an array */
void load(struct Stock s[], int n)
{
char nameCompare[30] = "Open the bay doors";
int i;
for(i=0;i<n;i++)
{
printf("Enter the Stock Name\n");
printf(">");
gets(s[i].name);
/////////////////////////////////////
if(strncmp (s[i].name,nameCompare,10) == 0)
{
printf("\tI'm sorry, Dave, I'm afraid I can't do that\n");
printf("\n");
exit(1);
}
/////////////////////////////////////
printf("Enter the Number of Shares\n");
printf(">");
scanf("%d", &s[i].numShares);
printf("Enter the Buying Price Per Share\n");
printf(">");
scanf("%f", &s[i].buyShare);
printf("Enter the Current Price Per Share\n");
printf(">");
scanf("%f", &s[i].currPrice);
printf("Enter the Yearly Fees\n");
printf(">");
scanf("%f", &s[i].fees);
s[i].initCost = (float)s[i].numShares * s[i].buyShare;
s[i].currCost = (float)s[i].numShares * s[i].currPrice;
s[i].profit = s[i].currCost - s[i].initCost - s[i].fees;
fflush(stdin);
}
}
/* Sort the array of structures
on stock name and print the array
after the sort is completed */
void sort(struct Stock s[], int n)
{
Stock t;
for(int i=0;i<n-1;i++)
for(int j=0;j<n-1;j++)
if(strcmp(s[j].name, s[j+1].name)>0)
{
t=s[j];
s[j]=s[j+1];
s[j+1]=t;
}
}
/* Calculate and print the total profit for all of the stocks.
That is, find the sum of the 5 profits for each stock. In
addition, find and print out the number of stocks that
had a positive profit, the number of stocks that had a
negative profit, and the number of stocks that broke
even, that is had a profit of $0.00 */
void calc(struct Stock s[],int n)
{
float total=0;
int Pos=0;
int Neg=0;
int Even=0;
for(int i=0;i<n;i++)
{
total +=s[i].profit;
if (s[i].profit>0)
++Pos;
else
if (s[i].profit<0)
++Neg;
else
++Even;
}
printf("\n");
printf("%d of stocks broke Positive\n",Pos);
printf("\t%d of stocks broke Negative\n",Neg);
printf("\t\t%d of stocks broke Even\n",Even);
printf("\n");
printf("The Total Trofit is $%f\n", total); //Check output
printf("\n");
}
//Output of the calc function
void print(struct Stock s[], int n)
{
for(int i=0;i<n;i++)
{
printf("\n");
printf("The stock is %s\n", s[i].name);
printf("\tWith Initial cost of $%0.2f\n", s[i].initCost);
printf("\t\tCurrent cost is $%0.2f\n", s[i].currCost);
printf("\t\t\tAnd your Profit is $%0.2f\n", s[i].profit); //Check output
printf("\n");
}
}
//Save the array of structures to a text file.
void savetext(struct Stock s[], int n)
{
FILE *f;
f = fopen("e:/final.txt", "w");
int i;
for(i=0;i<n;i++)
{
fprintf(f,"%s\n",s[i].name);
fprintf(f,"%d %f %f %f %f %f %f\n", &s[i].numShares, &s[i].buyShare, &s[i].currPrice, &s[i].fees, &s[i].initCost, &s[i].currCost, &s[i].profit);
}
fclose(f);
}
//Retrieve and print the text file.
void loadtext(struct Stock s[], int n)
{
FILE *f;
f = fopen("e:/final.txt", "r");
int i;
for(i=0;i<n;i++)
{
fgets(s[i].name, sizeof(s[i].name), f);
fscanf(f, "%d%f%f%f%f%f%f", &s[i].numShares, &s[i].buyShare, &s[i].currPrice, &s[i].fees, &s[i].initCost, &s[i].currCost, &s[i].profit);
}
fclose(f);
}
//Save the array of structures to a binary file.
void savebin(struct Stock s[], int n)
{
FILE *f;
f = fopen("e:\\final.bin", "wb");
if (! f)
{ printf("Could not open the file");
exit(1); }
fwrite(&s, sizeof(struct Stock), n, f);
fclose(f);
}
//Retrieve and print the binary file.
void loadbin(struct Stock *s, int n)
{
FILE *f;
f = fopen("e:\\final.bin", "rb");
if (! f)
{ printf("Could not open the file");
exit(1); }
fread(s, sizeof(struct Stock), n, f);
fclose(f);
}
void main()
{
printf("Hello, Dave\n");
Stock s[SIZE];
load (s, SIZE);
sort (s, SIZE);
savetext (s, SIZE);
savebin (s, SIZE);
print (s, SIZE);
calc (s, SIZE);
loadtext (s, SIZE);
print (s, SIZE);
loadbin (s, SIZE);
print (s, SIZE);
system("PAUSE");
}
