[Bug c/52661] negative maxint for long long gives warning

[jmichae3 at yahoo dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52661

--- Comment #5 from Jim Michaels <jmichae3 at yahoo dot com> 2012-03-22 06:29:51 UTC ---
read my comments in the code.
-(2^(32-1)) is a valid constant for 32-bit signed integers.  I don't get a
warning for that.
-(2^(16-1)) is a valid constant for 16-bit signed integers.  I don't get a
warning for that.
-(2^(8-1)) is a valid constant for 8-bit signed integers.  I don't get a
warning for that.

but -(2^(64-1)) is a valid constant for 64-bit signed integers,  and I get a
warning for that.

what for?  what possible reason is there for that?  these are valid integers!
  everybody knows what the range of int64_t and long long are.  but someone
goofed on this one.

looks to me like a bug.