How to do portable 64 bit arithmetic, without compiler warnings

Question

I occasionally use 64 bit arithmetic in an open source C++ library of mine. I discovered that long long serves my purpose quite nicely. Even some 10 year old solari

Answer 1

You can silence the warning with -Wno-long-long (make sure it comes after -pedantic). 64-bit integers are required by C99 and I think also C++0x so compilers that don't have them are getting rare nowadays.