Re: List<> of struct with property. Cannot change value of property. why?

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After all, in C++ there's a LOT of code that doesn't modify data that
isn't marked "const". Relying on the "const" keyword to enable a warning
wouldn't have been a good idea in C++, because you'd get a lot of false
positives due to the large amount of code that is "const" without using
"const".

Actually, in a good programmer's hands, that's a notice to the compiler that
the function is not guaranteed to leave the data unchanged. I'd hate for
the compiler to analyze a stub function, make an automatic determination of
const-ness, and somehow affect how the code around it is error-checked.
(Note that optimizing the generated machine code is ok, optimizing away
errors and warnings is not).

Understanding and using const-correctness is a prerequisite for being a
professional C++ programmer. It's an important part of documentation,
compile-time error checking, and enables automatic optimizations that
couldn't otherwise be performed.


.

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