Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <float.h>
typedef struct
{
char fname [15] ;
char sname [35];
int age ;
char category [2];
int number;
float time;
}
competitor_details;
//Global Variables
FILE *compfile;
competitor_details comp;
int choice=0;
//Declare Functions
void menu (void);
void entercompetitordetails(void);
void producecompetitordetails(void);
void enterracetimes(void);
void produceracereport(void);
int main(int argc, char *argv[])
{
menu();
system("PAUSE");
return 0;
}
void menu()
{
while (choice !=9)
{
system("CLS");
printf(" +++++++++++++++++++++++++++++++++++++++++++\n");
printf(" + Competitor details +\n");
printf(" + +\n");
printf(" + [1] Enter competitor details +\n");
printf(" + [2] Produce competitor details +\n");
printf(" + [3] Enter race times +\n");
printf(" + [4] Produce race report +\n");
printf(" + [9] Exit +\n");
printf(" + +\n");
printf(" +++++++++++++++++++++++++++++++++++++++++++\n");
printf(" Enter Choice " );
scanf("%i",&choice);
printf("\n");
switch (choice){
case 1:entercompetitordetails();
break;
case 2:producecompetitordetails();
break;
case 3:enterracetimes();
break;
case 4:produceracereport();
break;
case 9:printf("exit\n");
break;
default : printf("It is one of the undefined values\n");
system("PAUSE");
break;
}
}
}
void entercompetitordetails(void)
{
system ("cls");
compfile=fopen("compfile.bin", "ab");
if (compfile ==0)
{printf ("An error occurred opening file.\n");
}
printf ("Please enter competitor number or 0 to quit\n");
scanf ("%i", &comp.number);
while (comp.number != 0.)
{
printf(" Please enter first name \n");
scanf ("%s", &comp.fname);
printf(" Please enter surname\n");
scanf ("%s", &comp.sname);
printf(" Please enter age \n");
scanf ("%i", &comp.age);
printf(" Please enter category (Juvenile J, standard S, Expert E} \n");
scanf ("%s", &comp.category);
fwrite(&comp, sizeof(comp),1,compfile);
printf ("Please enter competitor number or 0 to quit\n");
scanf ("%i", &comp.number);
}
fclose(compfile);
system("PAUSE");
}
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void producecompetitordetails(void)
{
compfile = fopen("compfile.bin", "rb"); /* Open File */
if (compfile == 0)
{
printf ("An error occurred while opening the file.\a\n");
printf ("Please choose option 1.\n\n");
system("PAUSE");
}/*End of if statment*/
else
{
system ("cls"); /* Clear the Screen */
printf (" Competitor Details\n\n");
printf ("First Name\tSurname\tAge\tCategory\t Number\n");
while (!feof(compfile))
{
fread(&comp, sizeof(comp),1,compfile);
if(!feof(compfile))
printf ("%-20s\t%-20s\t%-2i\t%-3s\t%-3i\n", comp.fname, comp.sname, comp.age, comp.category, comp.number);
}/*End of while*/
fclose (compfile);/*Close the file*/
system("PAUSE");
}}
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void enterracetimes(void)
{
int search_no; //local variable
system ("cls");
compfile = fopen("compfile.bin","ab+");
if (compfile == 0)
{
printf ("File not opened\a\n");
printf ("Please choose option 1.\n\n ");
system("PAUSE");
}
else
{
printf ("Please enter competitor Number? ");
scanf("%i", &search_no);
while (!feof(compfile))
{
fread(&comp, sizeof(comp),1,compfile);
if (search_no == comp.number)
{
printf("Competitor is %s %s\n", comp.fname, comp.sname);
printf ("Please enter competitors race time\n");
scanf ("%f", &comp.time);
fwrite (&comp, sizeof(comp),1,compfile);
break;
}
if (search_no!=comp.number)
printf("competitor number is not Valid");
}
fclose(compfile);
system("PAUSE");}
}
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void produceracereport(void)
{
compfile=fopen("compfile.bin", "rb");
if (compfile == 0)
{
printf ("An error occurred while opening the file.\a\n");
printf ("Please choose option 1.\n\n");
system("PAUSE");
}/*End of if statment*/
else
{
system ("cls"); /* Clear the Screen */
printf (" LIST OF COMPETITOR RACE TIMES ``\n\n");
printf ("COMPETITOR No.\tFIRST NAME \tSURNAME \tTIME\n\n");
while (!feof(compfile))
{
fread(&comp, sizeof(comp),1,compfile);
if(!feof(compfile))
printf ("%i \t%-15s\t %-10s\t %f\n", comp.number,comp.fname,comp.sname,comp.time);
}/*End of while*/
}
fclose (compfile);/*Close the file*/
system("PAUSE");
}
Problems reading entered race times C
