Fundamentals of Computer Programming and IT by Pearson

Strings 379

14.7 PASSING STRINGS TO A FUNCTION

It is possible to access particular word or single character of string with the help of member functions of string

class. The supporting functions are illustrated with suitable examples.

at()

This function is used to access individual character. It requires one argument that indicates the ele ment

number. It is used in the given format.

s1.at(5);

Here s1 is a string object and 5 indicates 5th element that is to be accessed.

using namespace std;

int main()

{

string s1;

cout <<“\n Empty : “<<(s1.empty ()? “True” :”False”);

s1=”abc”;

cout <<“\n Empty: “<<(s1.empty() ? “True” :”False”);

return 0;

}

OUTPUT

Empty ...