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breain=freid. do.while demons

Sep 23, 2015 at 8:15pm
Marth (58)
it couldn't be simpler. yet it doesn't work. there is no explanation i can come to.

edit:

choice1 = 1.80
choice2 = 2.60 ; etc.

if i put into userPayment, at prompt, the exact number it works. If i put in less, it works, if i put in just a few cents or dollars more than the amount it triggers the ""Please enter an amount that covers the cost of your selection worm.\n";

i can type in a large amount like 200.00 and it works. but say i choose choice1 for 1.80, then type in 2.25 for the userPayment, it triggers the less than (<) if statement.

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  do{
    cout << "Insert your payment; (Example: '3.10') : " ;
	cin >> userPayment;

	 if (userPayment < choice1)
	{
		cout << "Please enter an amount that covers the cost of your selection worm.\n";
		valid2 = false;
		cin.clear();
	}
	 
	else if (userPayment < choice2)
	{
		cout << "Please enter an amount that covers the cost of your selection worm.\n";
		valid2 = false;
		cin.clear();
	}
	 else if (userPayment < choice3)
	{
		cout << "Please enter an amount that covers the cost of your selection worm.\n";
		valid2 = false;
		cin.clear();
	}
	 else if (userPayment < choice4)
	{
		cout << "Please enter an amount that covers the cost of your selection worm.\n";
		valid2 = false;
		cin.clear();
	}
	
		


	else if (userPayment == choice1)
	{
		cout << "Exact payment given, no change to give sucker!\n";
		valid2 = true;
	}
	else if (userPayment == choice2)
	{
		cout << "Exact payment given, no change to give sucker!\n";
		valid2 = true;
	}
	else if (userPayment == choice3)
	{
		cout << "Exact payment given, no change to give sucker!\n";
		valid2 = true;
	}
	else if (userPayment == choice4)
	{
		cout << "Exact payment given, no change to give sucker!\n";
		valid2 = true;
	}
	else if (userPayment > choice1 || choice2 || choice3 || choice4)
	{
		cout << "Your change is $" << userCash(userPayment) 
		<< endl;
		valid2 = true;
	}
	
	}while (!valid2);
Last edited on Sep 23, 2015 at 8:19pm
Sep 23, 2015 at 9:43pm
thefly (13)
Line 54.

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else if (userPayment > choice1 || choice2 || choice3 || choice4)
	{
		cout << "Your change is $" << userCash(userPayment) 
		<< endl;
		valid2 = true;
	}


You are only comparing userPayment to choice1.

Example:

 
 
else if(A > B || A > C )

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