| string::empty |
public member function |
Test if string is empty
Returns whether the string is empty, i.e. whether its size is 0.
This function does not modify the content of the string in any way. To clear the content of the string, member clear can be used.
Parameters
none
Return Value
true if the string size is
0,
false otherwise.
Example
// string::empty
#include <iostream>
#include <string>
using namespace std;
int main ()
{
string content;
string line;
cout << "Please introduce a text. Enter an empty line to finish:\n";
do {
getline(cin,line);
content += line + '\n';
} while (!line.empty());
cout << "The text you intorduced was:\n" << content;
return 0;
}
|
This program reads the user input line by line and stores it into string content until an empty line is introduced.
Basic template member declaration
( basic_string<charT,traits,Allocator> )
See also
| string::size | Return length of string (public member function) |
