Compare one character from a string with a string.

[Arne Kristoffer]

Hello! :)

I'm having a problem while comparing one character from a string with a ... string.

This is a part of a pretty complex loop (or, it's complex for me, since I'm new to C++ and programming), but the case is that I need to compare the value of a given i index of a string to a string. For example:

#include <iostream>
#include <string>

using namespace std;

int main()
{
	string str = "Arne Kristoffer rules";
	for(int x = 0; x != str.length(); x++)
	{
		if (str[x] == "a")
		{
			cout << str[x];
		}
	}
	cin.get();
	return 0;
}

Well, this is just a silly example program, but I hope you see whats wrong (because I don't...)

Thanks! :)

(PS: If you don't understand my english or if I have done something against the forum rules, please send me a PM, so it won't happen again.)

[Nick Evan]

Very simple mistake: if (str[x] == "a") should be: if (str[x] == 'a') You are comparing each character from a string with another character, so you need single quotes instead of double

if I have done something against the forum rules

Actually, you are one of the few people who get the Code-tags right in their first post, so : bravo!

[Ancient Dragon]

line 11: you don't do it like that. use single quotes to compare characters if (str[x] == 'a') [edit]^^^ like he said[/edit]

[Arne Kristoffer]

Thank you very much, this solved the problem! :)

Have a nice weekend!

Arne Kristoffer