C++/CLI equivalent of C# checked keyword

Question

Is there a way for managed code in C++/CLI to throw exceptions on arithmetic overflow? C# has the checked keyword and also global project flags to enable these, but I can find neither in C++/CLI...

My situation is that I am wrapping C++ libs in .NET. Sometimes the C++ native code overflows. I was/am considering moving some sensitive calculations to existing C++/CLI wrapper, but perhaps this is not possible?

possible duplicate of [What is the C++ equivalent of the C# checked](http://stackoverflow.com/questions/14500593/what-is-the-c-equivalent-of-the-c-sharp-checked) — Daniel A. White, Feb 21 '13 at 23:39
Possible duplicate of http://stackoverflow.com/questions/14500593/what-is-the-c-equivalent-of-the-c-sharp-checked — Alireza Noori, Feb 21 '13 at 23:40
Right, so does this mean C++/CLI has checked arithmetic on always? — Jarek Mitek, Feb 21 '13 at 23:44

score 5 · Accepted Answer · edited May 23 '17 at 11:45

5

The linked duplicate make no sense, C++/CLI follows C++ conventions. C++ has no built-in mechanism for detecting arithmetic overflow.

Using the checked and unchecked keywords was originally planned for future extensions of C++/CLI. Ecma-372 is the current language standard and proposes this extension in appendix F.2.1. This however never happened and is very unlikely to be ever implemented.

You'll thus have to implement overflow checking yourself. You'll find some guidance in this question.

edited May 23 '17 at 11:45

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answered Feb 22 '13 at 01:59

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Thanks! I was confused by that linked question - seems quite misleading. – Jarek Mitek Feb 22 '13 at 02:30

C++/CLI equivalent of C# checked keyword

1 Answers1

Linked