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Home » Tip Bank » C++
Language: C++
Expertise: Advanced
Apr 12, 1999

std::string and Reference Counting

The Standard's specification of class std::string is formulated to allow a reference counted implementation. However, this is not a requirement. A reference counted implementation must have the same semantics as a non-reference counted one. For example:
 
string str1("xyz");
string::iterator i = str1.begin();
string str2 = str1;
*i = 'w';  //must modify only  str1
Danny Kalev
 
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