Thread: Character counting

Originally Posted by Welshy

I believe there is a function "size()" that could do what you want

That's right. Or you can use length() as well. Here's simple code reading user input (it's pretty much same with files)

Code:

#include <iostream>
#include <string>


using namespace std;

int main()
{
	string str;
	getline(cin,str);
	cout<<"There are "<<flush<<str.length()<<" characters!"<<endl;
	system("pause");
	return 0;
}

- Micko

there's quiete a few ways to do this. but really you should use methods 1 and 2 (below) most of the time, if not all of the time. i just wanted to show the last 2 so you can see how it works.

Code:

#include <string>
#include <iostream>

using namespace std;

int main()
{
	char stringArray[] = "Blah blah blah";
	string stringObject("hum dee dum");

	//Method 1 and 2
	cout << "stringArray size: " << strlen(stringArray) << endl;
	cout << "stringObject length: " << stringObject.size() << endl;
	//stringObject.size() and stringObject.length() ARE the same

	//Method 3
	char *p = stringArray;	
	int i = 0;
	while(*p++)
		i++;
	cout << "stringArray length: " << i << endl;

	//Method 4
	i = 0;
	string::iterator si = stringObject.begin();
	for(; si != stringObject.end(); si++, i++);
		
	
	cout << "stringObject length: " << i << endl;
}