Use string: find, string::npos

 

#include <iostream>
#include <string>
using namespace std;

int main()
{
  int i;
  string s1 = "Quick of Mind, Strong of Body, Pure of Heart";
  string s2;

  i = s1.find("Quick");
  if(i != string::npos) {
    cout << "Match found at " << i << endl;
    cout << "Remaining string is:\n";
    s2.assign(s1, i, s1.size());
    cout << s2;
  }
  cout << endl;

  i = s1.find("Strong");
  if(i != string::npos) {
    cout << "Match found at " << i << endl;
    cout << "Remaining string is:\n";
    s2.assign(s1, i, s1.size());
    cout << s2;
  }
  cout << endl;

  i = s1.find("Pure");
  if(i!=string::npos) {
    cout << "Match found at " << i << endl;
    cout << "Remaining string is:\n";
    s2.assign(s1, i, s1.size());
    cout << s2;
  }
  cout << endl;

  // find list "of"
  i = s1.rfind("of");
  if(i!=string::npos) {
    cout << "Match found at " << i << endl;
    cout << "Remaining string is:\n";
    s2.assign(s1, i, s1.size());
    cout << s2;
  }

  return 0;
}

1.	String type class
2.	A filter to remove white-space characters at the ends of lines.
3.	A string demonstration: assignment, concatenate, compare
4.	Demonstrate insert(), erase(), and replace().
5.	Strings: size, iterator, count, begin and end
6.	string: find( ) and rfind( )
7.	Print a name in two different formats
8.	Several string operations: substr
9.	String Char Indexing
10.	String Find and replace
11.	String Size
12.	String SizeOf
13.	A short string demonstration
14.	String insert(), erase(), and replace()
15.	string variable instead of a character array
16.	Inputting Multiple Words into a String
17.	Adding Strings
18.	Read string from console
19.	Insert, search, and replace in strings.
20.	Accessing Characters In Strings

Use string: find, string::npos : String « Data Type « C++

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