hi dear fellow
i have tried to add structure array in my program and i had a few issue to add. please can anyone tell me how can i add a structure array in the following program
#include <stdio.h>
#include <stdlib.h>
#include<string.h>
#include<conio.h>
struct books{
char name[22], book[25],date1[10], date2[10],id[7],bid[7];
} el;
void data();
int main(void)
{
void transaction(),modify(),view(),search(),delet();
int num;
do
{
system("cls");
printf("\n\t\t***************************************");
printf("\n\t\t\t\t\t\t\t\t\t\t\t\t\t Welcome To BOOK MENU ");
printf("\n\t\t***************************************\n");
printf("\t\t1. Append Record and Book");
printf("\n\t\t2. Modify record");
printf("\n\t\t3. Search Book");
printf("\n\t\t4. Delete Record");
printf("\n\t\t5. Dispaly All");
printf("\n\t\t6. Exit");
printf("\n\t\t***************************************");
printf("\n\t\t Choice:");
scanf("%d", &num);
switch(num)
{
case 1:
transaction();
break;
case 2:
modify();
break;
case 3:search();
break;
case 4: delet();
break;
case 5:
view();
break;
case 6:
return 0;
break;
default :
printf(" \n\t\t wrong value !!!");
break;
}
getch();
}while(num!=6);
}
//function for laon transaction
//-------------------------------------------------------------------------------------
void data()
{
fflush(stdin);
printf("\n\t\tUsername Name: ");
gets(el.name);fflush(stdin);
printf("\t\t User Id: ");
gets(el.id);fflush(stdin);
printf("\t\tBook Name: ");fflush(stdin);
gets(el.book);
printf("\t\tBOOK Id: ");
gets(el.bid);fflush(stdin);
printf("\t\tToday Date: ");
gets(el.date1);fflush(stdin);
printf("\t\tDate of return: ");
gets(el.date2);
fflush(stdin);
}
void transaction()
{
system("cls");
FILE *fp;
fp = fopen("data.txt","a");
fflush(stdin);
printf("\n\t\t\t************************\n");
printf("\n\t\t\t Loan Transaction");
printf("\n\t\t\t************************\n");
data();
fwrite(&el,sizeof(el),1,fp);
printf("\n\t\t\tSuccessful Added");
fclose(fp);
}
//function for modification
//----------------------------------------------------------------------------
void modify()
{
FILE*fp,*fp1;
fp=fopen("data.txt","r");
fp1=fopen("temp.txt","w");
char name[22];
int found=0;
fflush(stdin);
printf("\n\t\tUsername: ");
gets(name);fflush(stdin);
while(1)
{
fread(&el,sizeof(el),1,fp);
if(feof(fp))
{
break;
}
if(strcmp(name,el.name)==0)
{
found=1;
data();
printf("\n\t\tmodification done!!");
fwrite(&el,sizeof(el),1,fp1);
}else
{
fwrite(&el,sizeof(el),1,fp1);
}
}
fclose(fp);
fclose(fp1);
if(found==0)
{
printf("\n\t\tSorry no record found!!");
}
else
{
fp=fopen("data.txt","w");
fp1=fopen("temp.txt","r");
while(1)
{
fread(&el,sizeof(el),1,fp1);
if(feof(fp1))
{
break;
}
fwrite(&el,sizeof(el),1,fp);
}
}
fclose(fp);
fclose(fp1);
}
// function for dispaly the content of the file
//--------------------------------------------------------------------------------------
void view()
{
FILE *fp;
fp = fopen("data.txt","r");
system("cls");
struct books el;
printf("\n\t\t\t**************************");
printf("\n\t\t\t The content of the file");
printf("\n\t\t\t**************************\n");
printf("\n%-13s %-13s %-13s %-13s %-13s %-13s\n","Username","UserID","BookName","BookID","TodayDate","IssueDay");
while(1)
{
fread(&el,sizeof(el),1,fp);
if(feof(fp))
{
break;
}
printf("\n%-13s %-13s %-13s %-13s %-13s %-13s",el.name,el.id,el.book,el.bid,el.date1,el.date2);
}
fclose(fp);
}
// function for search a special book
//-------------------------------------------------------------------------------
void search()
{
FILE *fp;
fp = fopen("data.txt","r");
char name[22];
int found=0;
system("cls");
printf("\n\t\t\t**************************");
printf("\n\t\t\t Search");
printf("\n\t\t\t**************************\n");
fflush(stdin);
printf("\n\t\tBook Name: ");
gets(name);fflush(stdin);
while(1)
{
fread(&el,sizeof(el),1,fp);
if(feof(fp))
{
break;
}
if(strcmp(name,el.book)==0)
{
found=1;
printf("\n%-13s %-13s %-13s %-13s %-13s %-13s\n","Username","UserID","BookName","BookID","TodayDate","IssueDay");
printf("\n%-13s %-13s %-13s %-13s %-13s %-13s",el.name,el.id,el.book,el.bid,el.date1,el.date2);
break;
}
}
if(found==0)
{
printf("\n\t\t Sorry record no found!!");
}
fclose(fp);
}
//function for delete record
//------------------------------------------------------------------------
void delet()
{
FILE*fp,*fp1;
fp=fopen("data.txt","r");
fp1=fopen("temp.txt","w");
char name[22];
int found=0;
fflush(stdin);
printf("\n\t\tUsername: ");
gets(name);fflush(stdin);
while(1)
{
fread(&el,sizeof(el),1,fp);
if(feof(fp))
{
break;
}
if(strcmp(name,el.name)==0)
{
found=1;
}else
{
fwrite(&el,sizeof(el),1,fp1);
}
}
fclose(fp);
fclose(fp1);
if(found==0)
{
printf("\n\t\tSorry no record found!!");
}
else
{
fp=fopen("data.txt","w");
fp1=fopen("temp.txt","r");
while(1)
{
fread(&el,sizeof(el),1,fp1);
if(feof(fp1))
{
break;
}
fwrite(&el,sizeof(el),1,fp);
}
printf("\n\t\t Deleting done!!");
}
fclose(fp);
fclose(fp1);
}
