Does anyone know a way to get the length of a string? I have tried:

str.length
str.size
strlen()

Bob

Code:
// Exercise in string manipulation

#include <iostream>
#include <string>

void prtname(std::string str);

using namespace std;

int main()
{
	string input;

	cout << "Please enter the name of a bird with long legs: ";

	cin >> input;

	prtname(input);

	return 0;
}

void prtname(std::string str)
{
	cout << "The birds name is: " << str;
	cout << "The lenght of the name is: " << str.length;
}