C++/String/string insert

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

<source lang="cpp">

1. include <iostream>
2. include <string>
3. include <cctype>
4. include <algorithm>
5. 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">

1. include <iostream>

using std::cout; using std::endl;

1. 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">

1. include <iostream>
2. 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">

1. include <iostream>
2. 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">

1. include <iostream>

using std::cout; using std::endl;

1. 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>