https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61546
--- Comment #2 from Anton Baskanov <baskanov at gmail dot com> --- (In reply to Richard Biener from comment #1) > Well, > > long long(123456789012345678); > > isn't valid C++. Either use cast syntax or provide a typedef. Yes, you are right, but why libgcc uses #define for __int64 instead of typedef? This is confusing.
