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Home » Tip Bank » C++
Language: C++
Expertise: Intermediate
Feb 21, 2002

Returning Large Objects from a Function Efficiently and Safely


"getter" member functions usually return a result by value. However, when the returned value is a large object, a string for example, returning it by value can be very inefficient. Returning the result by reference rather than by value, as in:
 
string & Person::get_name()
{
 return name;
}

solves the overhead problem. Alas, this technique isn
Danny Kalev
 
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