Omer Katz wrote:
A friend and I have started working on a SafeInt library which we hope will be included in Boost
I think such a library would be very useful. But as Ilya Bobir mentions, it is very similar to Microsoft's SafeInt, developed by David LeBlanc. Did you have a look at his library before? Ilya Bobir wrote:
I really doubt that you library will be accepted in its current form. For the following reasons: [...] 4. x86 has hardware support for checking for integer overflows. It means that the OS may provide some means to check if an overflow has occurred. Using hardware may be way faster then doing the checks in the software.
Interesting! How would you use hardware to check int overflow?
P.S. Your code seems to be very similar to what is published here: http://msdn.microsoft.com/en-us/library/ms972705.aspx
Indeed. Note that Microsoft's SafeInt will be shipped with MSVC 2010. Actually, Visual Studio Beta 1 already has it placed at "C:\Program Files\Microsoft Visual Studio 10.0\VC\include" There's also a freely available version of David LeBlanc's SafeInt at Microsoft's open source website, www.codeplex.com/SafeInt BTW, I did help a little bit to get it compiling on GCC. :-) Kind regards, Niels -- Niels Dekker http://www.xs4all.nl/~nd/dekkerware Scientific programmer at LKEB, Leiden University Medical Center