=====substr=====
Syntax:

<code>
    #include <string>
    string substr( size_type index = 0, size_type length = npos ) const;
</code>

The ''substr'' method of the string class returns a substring of the current string, starting at ''index'', and ''length'' characters long.

If ''index + length'' is past the end of the string, then only the remainder of the string starting at ''index'' will be returned.

If ''length'' is omitted, it will default to ''string::npos'', and ''substr'' will simply return the remainder of the string starting at ''index''.

For example:

<code>
     string s("What we have here is a failure to communicate");
     string sub = s.substr(21);
     cout << "The original string is " << s << endl;
     cout << "The substring is " << sub << endl;
</code>

displays

<code terminal>
     The original string is What we have here is a failure to communicate
     The substring is a failure to communicate
</code>

Related Topics: [[copy]]