I have a property of a class, for example, const CFoo &bar() const, what does it mean?
I have a property of a class, for example, const CFoo &bar() const ,
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I have a property of a class, for example, const CFoo &bar() const, what does it mean?
The method
barreturns a reference to a constCFoo(that’s theconst CFoo &part beforebar), and calling this method does not modify any variables that are not marked asmutable(that’s theconstafter the parentheses).See also the C++ FAQ Lite entries What does “
Fred const& X” mean? and What is a “constmember function”?.