Просмотр исходного текста страницы C++/String/string insert

==Insert into str by using the iterator version of insert()==


   
<source lang="cpp">  
#include <iostream>
#include <string>
#include <cctype>
#include <algorithm>
#include <vector>
using namespace std;
int main()
{
  string strA("This is a test.");
  string::iterator itr;
  // Insert into str by using the iterator version of insert().
  cout <<"Insert into a string via an iterator.\n";
  string strB(" bigger");
  strA.insert(itr, strB.begin(), strB.end());
  cout << strA << "\n\n";
  return 0;
}
  
    
  </source>


==Insert one string at location 10 of another string==


   
<source lang="cpp">  
 
#include <iostream>
using std::cout;
using std::endl;
#include <string>
using std::string;
int main()
{
   string string1( "AAAAAAA end" );
   string string2( "CCCCCCC " );
   string string3( "12345678" );
   string string4( "xx" );
   cout << "Initial strings:\nstring1: " << string1
      << "\nstring2: " << string2 << "\nstring3: " << string3
      << "\nstring4: " << string4 << "\n\n";
   // insert string2 at location 10 in string1
   string1.insert( 10, string2 );
   cout << "Strings after insert:\nstring1: " << string1
      << "\nstring2: " << string2 << "\nstring3: " << string3
      << "\nstring4: " << string4 << endl;
   return 0;
}
/* 
Initial strings:
string1: AAAAAAA end
string2: CCCCCCC
string3: 12345678
string4: xx
Strings after insert:
string1: AAAAAAA enCCCCCCC d
string2: CCCCCCC
string3: 12345678
string4: xx
 */        
    
  </source>


==Insert one string into another==


   
<source lang="cpp">  
#include <iostream>
#include <string>
using namespace std;
int main()
{
  string str1("this is a test");
  string str2("this is another test");
  string str3("this is the third test");
  string str4;
  cout << "  str1: " << str1 << endl;
  cout << "  str2: " << str2 << endl;
  cout << "  str3: " << str3 << "\n\n";
  // Insert one string into another.
  str4.insert(5, str2);
  cout << "str4 after inserting str2: " << str4 << "\n\n";
  return 0;
}
  
    
  </source>


==string.insert()==


   
<source lang="cpp">  
 
#include <iostream>
#include <string>
using namespace std;
int main()
{
  string str1("String handling C++ style.");
  string str2("STL Power");
  cout << "Initial strings:\n";
  cout << "str1: " << str1 << endl;
  cout << "str2: " << str2 << "\n\n";
  // demonstrate insert()
  cout << "Insert str2 into str1:\n";
  str1.insert(6, str2);
  cout << str1 << "\n\n";
  return 0;
}
/* 
Initial strings:
str1: String handling C++ style.
str2: STL Power
Insert str2 into str1:
StringSTL Power handling C++ style.

 */        
    
  </source>


==string.insert( 3, string4, 0, string::npos )==


   
<source lang="cpp">  
 
#include <iostream>
using std::cout;
using std::endl;
#include <string>
using std::string;
int main()
{
   string string1( "beginning end" );
   string string2( "middle " );
   string string3( "12345678" );
   string string4( "xx" );
   cout << "Initial strings:\nstring1: " << string1
      << "\nstring2: " << string2 << "\nstring3: " << string3
      << "\nstring4: " << string4 << "\n\n";
   // insert string4 at location 3 in string3
   string3.insert( 3, string4, 0, string::npos );
   cout << "Strings after insert:\nstring1: " << string1
      << "\nstring2: " << string2 << "\nstring3: " << string3
      << "\nstring4: " << string4 << endl;
   return 0;
}
/* 
Initial strings:
string1: beginning end
string2: middle
string3: 12345678
string4: xx
Strings after insert:
string1: beginning end
string2: middle
string3: 123xx45678
string4: xx
 */        
    
  </source>