Have 3 files-
1.atm.c(Source file)
2.transactions.h(function declarations)
3.transactions.c(defining the functions)
when i compile(GCC) this i am getting a WinMain Error.
And i tried all the ways i know, that i can compile the program.
Ex 1:
gcc -o atm.c transactions.c transactions.h //the atm.c is getting deleted in this way.
Ex 2:as i already included the file(.h) in source so i didn't give the .h in compile time :
gcc -o atm.c transactions.c //in this case file is not getting deleted but getting the WinMain Error.
** OUTPUT:**
gcc -o atm.c transactions.c transactions.h
C:/crossdev/src/mingw-w64-v4-git/mingw-w64-crt/crt/crt0_c.c:18: undefined reference to `WinMain'
collect2.exe: error: ld returned 1 exit status
atm.c:
#include "transactions.h"
int main(void) {
initializeAccount();
getBalance();
//Perform first transaction
askCustomer();
updateAccount(amount);
getBalance();
//Perform second transaction
askCustomer();
updateAccount(amount);
addGift(5.0);
getBalance();
//Perform third transaction
askCustomer();
updateAccount(amount);
addGift(2.0);
getBalance();
thankYou();
return EXIT_SUCCESS;
}
transactions.h:
#include <stdio.h>
#include <stdlib.h>
#ifndef TRANSACTIONS_H_
#define TRANSACTIONS_H_
float accountBalance, amount;
void initializeAccount();
void getBalance(void);
void askCustomer(void);
void updateAccount(float value);
void addGift(float giftAmount);
void thankYou(void);
#endif
transactions.c :
#include <stdio.h>
#include <stdlib.h>
float accountBalance, amount;
void initializeAccount(void){
accountBalance = 0.0;
}
void addGift(float giftAmount){
accountBalance += giftAmount;
printf("A gift of $%.2f has been added to your \n",giftAmount);
}
void askCustomer(void){
printf("Next transaction please...\n");
printf("Enter amount to credit (positive) or debit (negative):");
scanf("%f",&amount);
}
void getBalance(void){
printf("\ncurrent balance is $%.2f\n", accountBalance);
}
void updateAccount(float amount){
accountBalance += amount;
printf("The account was updated with $%.2f\n",amount);
}
void thankYou(void){
printf("------ Thank you! ------");
}
