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Is new C++ backward compatible

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c++

I haven't coded in C++ for years. I recently discovered that during those years it has changed quite dramatically. I'm not sure I like the changes, but that's another discussion.

I still have some C++ code knocking around my hard drive. If I got it out and tried to compile it with a nice new C++ compiler, say the latest version of g++, would it compile? Without warnings (assuming it compiled without warnings before)?

I did get to mess around with a little VC++ 2010 recently and found some things I expected to work just not working, and got different messages depending on context when I tried to use NULL. But in one part of that code I used NULL without even a warning.

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AlastairG Avatar asked Dec 01 '10 15:12

AlastairG

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1 Answers

In general, yes it is backwards compatible. However, the devil is in the details. You likely will find things where conventions change, or specific libraries fall into or out of use.

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David Oneill Avatar answered Sep 25 '22 20:09

David Oneill
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