Output is incorrect

[vwyodapink]

I am trying to make an application that will display what color a particular item number entered by the user. The errors display correctly the part that is not working is the output if everything comes to true. I always get a display of "The color is blue" if I enter "56b89" comes out blue if I enter "67W90" comes out blue. Can someone please show me the error of my ways please. Thanks for the help.

#include <iostream>
#include <string>
#include <algorithm>
using namespace std;

int main()
{
string item = "";

cout << "Enter your 5-digit item #: ";
cin >> item;
transform(item.begin(), item.end(), item.begin(), toupper);

while (item.length() != 5)
{
	cout << "Invalid item #. Please enter a 5-digit item # ";
	cin >> item;
	transform(item.begin(), item.end(), item.begin(), toupper);
}

if (item.length() == 5)
{
	if (item.find("B", 2)) 
	cout << "Your color is blue" << endl << endl;
	else if (item.find("G", 2)) 
	cout << "Your color is green" << endl << endl;
	else if (item.find("R", 2))
	cout << "Your color is red" << endl << endl;
	else if (item.find("W", 2))
	cout << "Your color is white" << endl << endl;
}
else
	cout<< "Invalid item no matching color..."; // if code is not from any of the above.

return 0;
}

[helios]

See the return value:
http://www.cplusplus.com/reference/string/string/find/

[vwyodapink]

I am not getting the link you sent me the size_t isnt even talked about in my chapter that is showing me the find. Or am I just totally not understanding ?

[helios]

No, the return value, not the return type. The return value section on that page. See what the function returns in each case.

[chrisname]

You want to check whether item.find(x) is equal to something. Think 'no position'. It's part of the string:: class.

[vwyodapink]

thanks for the hints guys i got it to work not sure if its the best way but works.

#include <iostream>
#include <string>
#include <cctype>
using namespace std;

int main()
{
string item = "";

cout << "Enter your 5-digit item #: ";
cin >> item;

while (item.length() != 5)
{
	cout << "Invalid item #. Please enter a 5-digit item # ";
	getline(cin, item);
}

if (item.length() == 5)
{
	if('B' == toupper(item[2])) 
	cout << "Your color is blue" << endl;
	else if ('G' == toupper(item[2])) 
	cout << "Your color is green" << endl;
	else if ('R' == toupper(item[2]))
	cout << "Your color is red" << endl;
	else if ('W' == toupper(item[2]))
	cout << "Your color is white" << endl;
}
else
	cout<< "Invalid item no matching color..."; // if code is not from any of the above.

return 0;
}