Compare sub string: string4.compare( 0, string2.length(), string2 ) : string compare « String « C++






  1. C++
  2. String
  3. string compare

Compare sub string: string4.compare( 0, string2.length(), string2 )

  
 

#include <iostream>
using std::cout;
using std::endl;

#include <string>
using std::string;

int main()
{
   string string1( "AAAAAAAAAAAAAA" );
   string string2( "BBBBBBBBBBBBBB" ); 
   string string3( "CCCCCCCCCCCCCC" );
   string string4( string2 );
   
   cout << "string1: " << string1 << "\nstring2: " << string2
      << "\nstring3: " << string3 << "\nstring4: " << string4 << "\n\n";

   // comparing string2 and string4
   int result = string4.compare( 0, string2.length(), string2 );

   if ( result == 0 )
      cout << "string4.compare( 0, string2.length(), " << "string2 ) == 0" << endl;
   else {
      if ( result > 0 )
         cout << "string4.compare( 0, string2.length(), " << "string2 ) > 0" << endl;
      else
         cout << "string4.compare( 0, string2.length(), "
            << "string2 ) < 0" << endl;
   }
   return 0;
} 

/* 
string1: AAAAAAAAAAAAAA
string2: BBBBBBBBBBBBBB
string3: CCCCCCCCCCCCCC
string4: BBBBBBBBBBBBBB

string4.compare( 0, string2.length(), string2 ) == 0

 */








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