ATM Simulation in C
Project Overview
This project simulates an ATM interface in C, allowing users to perform basic banking transactions such as depositing money, withdrawing funds, and checking their account balance. It utilizes helper functions organized in separate files for modularity and clarity. The program enforces input validation to ensure accurate and secure transactions.
Features
- Deposit Function: Accepts a positive amount and adds it to the account balance. Invalid inputs result in no deposit being made.
- Withdraw Function: Ensures the withdrawal amount is positive and does not exceed the current balance. Valid withdrawals deduct from the balance, while invalid attempts provide feedback to the user.
- Check Balance Function: Displays the current account balance in a clear format (e.g., $123.45).
- Open Account Function: Requires an initial deposit of at least $50 to open an account. Input validation ensures compliance.
Technical Highlights
- Language: C
- Concepts Applied: Modular programming using separate header (account.h) and implementation (account.c) files.
- Global Variables: A global variable tracks the user's balance, ensuring state persistence across transactions.
- Input Validation: Each function rigorously checks user inputs for validity and provides feedback for incorrect entries.