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WalkthroughA complete C++ bank account system is introduced with polymorphic design. The implementation includes a base Changes
Sequence Diagram(s)sequenceDiagram
actor User
participant Main
participant Bank
participant Account
User->>Main: Select operation (e.g., create account)
Main->>Bank: createAcc()
Bank->>Bank: Prompt for account type, name, balance, password
alt Savings Account
Bank->>Account: new SavingsAccount(...)
else Current Account
Bank->>Account: new CurrentAccount(...)
end
Account->>Account: Auto-assign account number
Bank->>Bank: Store Account pointer
Main->>User: Display confirmation with account number
sequenceDiagram
actor User
participant Main
participant Bank
participant Account
User->>Main: Select transaction (deposit/withdraw)
Main->>Bank: transactionManagement()
Bank->>User: Request account number and password
Bank->>Account: authenticate(password)
alt Authentication fails
Account-->>Bank: false
Bank-->>User: Invalid credentials
else Authentication succeeds
Account-->>Bank: true
Bank->>User: Request amount
alt Deposit
Bank->>Account: deposit(amount)
else Withdraw
Bank->>Account: withdraw(amount, overdraftLimit)
alt Insufficient funds & overdraft exceeded
Account-->>Bank: Error state
else Transaction allowed
Account->>Account: Update balance
end
end
Bank-->>User: Display transaction result
end
Estimated code review effort🎯 4 (Complex) | ⏱️ ~45 minutes Areas requiring extra attention:
Poem
Pre-merge checks and finishing touches❌ Failed checks (1 warning, 1 inconclusive)
✅ Passed checks (1 passed)
✨ Finishing touches
🧪 Generate unit tests (beta)
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Actionable comments posted: 1
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (1)
fork.cpp(1 hunks)
🧰 Additional context used
🪛 Clang (14.0.6)
fork.cpp
[error] 1-1: 'iostream' file not found
(clang-diagnostic-error)
Comment on lines
+34
to
+47
| void withdraw(double amount, double overdraftLimit) { | ||
| const double withdrawalFee = 5.00; | ||
| const double minBalance = 100.00; | ||
|
|
||
| if (amount > 0 && (balance + overdraftLimit) >= (amount + withdrawalFee)) { | ||
| if ((balance - amount) < minBalance) { | ||
| cout << "Withdrawal denied! Minimum balance of Rs100.00 is required." << endl; | ||
| return; | ||
| } | ||
| balance -= (amount + withdrawalFee); | ||
| cout << "Successfully withdrew: Rs" << amount << " (with a fee of Rs" << withdrawalFee << ")" << endl; | ||
| } else { | ||
| cout << "Withdrawal amount exceeds balance and overdraft limit!" << endl; | ||
| } |
There was a problem hiding this comment.
Fix withdraw boundary checks for fees and overdraft.
The current guard enforces the Rs100 minimum against balance - amount and ignores the Rs5 fee. A Rs105 savings balance can withdraw Rs5 and end up at Rs95, violating the minimum. The same check also blocks current accounts from ever dipping into their overdraft, because balance - amount < minBalance trips even when the overdraft limit would cover the shortfall. Please account for the fee when evaluating the post-transaction balance and relax the min-balance requirement when an overdraft limit is provided.
Apply this diff to correct the logic:
void withdraw(double amount, double overdraftLimit) {
const double withdrawalFee = 5.00;
const double minBalance = 100.00;
- if (amount > 0 && (balance + overdraftLimit) >= (amount + withdrawalFee)) {
- if ((balance - amount) < minBalance) {
- cout << "Withdrawal denied! Minimum balance of Rs100.00 is required." << endl;
- return;
- }
- balance -= (amount + withdrawalFee);
- cout << "Successfully withdrew: Rs" << amount << " (with a fee of Rs" << withdrawalFee << ")" << endl;
- } else {
- cout << "Withdrawal amount exceeds balance and overdraft limit!" << endl;
- }
+ if (amount <= 0) {
+ cout << "Invalid withdrawal amount!" << endl;
+ return;
+ }
+
+ if ((amount + withdrawalFee) > (balance + overdraftLimit)) {
+ cout << "Withdrawal amount exceeds balance and overdraft limit!" << endl;
+ return;
+ }
+
+ double newBalance = balance - amount - withdrawalFee;
+
+ if (overdraftLimit <= 0) {
+ if (newBalance < minBalance) {
+ cout << "Withdrawal denied! Minimum balance of Rs100.00 is required." << endl;
+ return;
+ }
+ } else if (newBalance < -overdraftLimit) {
+ cout << "Withdrawal amount exceeds overdraft allowance!" << endl;
+ return;
+ }
+
+ balance = newBalance;
+ cout << "Successfully withdrew: Rs" << amount << " (with a fee of Rs" << withdrawalFee << ")" << endl;
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
Suggested change
| void withdraw(double amount, double overdraftLimit) { | |
| const double withdrawalFee = 5.00; | |
| const double minBalance = 100.00; | |
| if (amount > 0 && (balance + overdraftLimit) >= (amount + withdrawalFee)) { | |
| if ((balance - amount) < minBalance) { | |
| cout << "Withdrawal denied! Minimum balance of Rs100.00 is required." << endl; | |
| return; | |
| } | |
| balance -= (amount + withdrawalFee); | |
| cout << "Successfully withdrew: Rs" << amount << " (with a fee of Rs" << withdrawalFee << ")" << endl; | |
| } else { | |
| cout << "Withdrawal amount exceeds balance and overdraft limit!" << endl; | |
| } | |
| void withdraw(double amount, double overdraftLimit) { | |
| const double withdrawalFee = 5.00; | |
| const double minBalance = 100.00; | |
| if (amount <= 0) { | |
| cout << "Invalid withdrawal amount!" << endl; | |
| return; | |
| } | |
| if ((amount + withdrawalFee) > (balance + overdraftLimit)) { | |
| cout << "Withdrawal amount exceeds balance and overdraft limit!" << endl; | |
| return; | |
| } | |
| double newBalance = balance - amount - withdrawalFee; | |
| if (overdraftLimit <= 0) { | |
| if (newBalance < minBalance) { | |
| cout << "Withdrawal denied! Minimum balance of Rs100.00 is required." << endl; | |
| return; | |
| } | |
| } else if (newBalance < -overdraftLimit) { | |
| cout << "Withdrawal amount exceeds overdraft allowance!" << endl; | |
| return; | |
| } | |
| balance = newBalance; | |
| cout << "Successfully withdrew: Rs" << amount << " (with a fee of Rs" << withdrawalFee << ")" << endl; | |
| } |
🤖 Prompt for AI Agents
In fork.cpp around lines 34 to 47, the withdrawal logic currently checks the
minimum balance against balance - amount and ignores the Rs5 fee and overdraft
behavior; compute the post-transaction balance as balance - amount -
withdrawalFee, change the initial guard to check (balance + overdraftLimit) >=
(amount + withdrawalFee), require for accounts without overdraft (overdraftLimit
== 0) that post-transaction balance >= minBalance, and for accounts with an
overdraftLimit allow post-transaction balance >= -overdraftLimit; update the
conditional branches and messages accordingly so the fee is included in all
checks and overdraft-qualified accounts can dip below minBalance but not beyond
their overdraft limit.
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do merge it |
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