int64_t == long long

[John Love-Jensen]

Hi Yang Zhang,

My guess (purely speculative, not authoritative) is that on your platform, a
long int is 64-bit, and a long long is 64-bit.  Assuming that guess is
correct, since long int is 64-bit *AND* long int is part of the C99 standard
the stdint.h used long int to be the alias for int64_t.  Whereas long long
is a compiler extension*, so the long int was preferential to long long.

Sincerely,
--Eljay

* Is long long still a compiler extension for C99?  I don't use C99.