void clear();

Clear string

The string content is set to an empty string, erasing any previous content and thus leaving its size at 0 characters.

Parameters

Return Value

Example

// string::clear
#include <iostream>
#include <string>
using namespace std;

int main ()
{
  string str;
  char c;
  cout << "Please type some lines of text. Enter a period to finish:\n";
  do {
    c=cin.get();
    str += c;
    if (c=='\n')
    {
       cout << str;
       str.clear();
    }
  } while (c!='.');
  return 0;
}

This program repeats every line introduced by the user until a period character ('.') is introduced. Every newline character ('\n') triggers the repetition of the line and the clearing of the current string content.

Basic template member declaration

void clear ( );

See also