If string empty
#include <iostream>
#include <string>
using namespace std;
int main()
{
string word1 = "Game";
string word2("Over");
string word3(3, "!");
string phrase = word1 + " " + word2 + word3;
if (phrase.empty())
cout << "\nThe phrase is no more.\n";
return 0;
}string member function empty
#include <iostream>
using std::cout;
using std::endl;
#include <string>
using std::string;
int main()
{
string s1( "AA" );
string s2( " AAB" );
string s3;
//
cout << "\n\nTesting s3.empty():" << endl;
if ( s3.empty() )
{
cout << "s3 is empty; assigning s1 to s3;" << endl;
s3 = s1;
cout << "s3 is \"" << s3 << "\"";
}
return 0;
}Testing s3.empty():
s3 is empty; assigning s1 to s3;
s3 is "AA"
