[patch,fortran] Support type real for count_rate in system_clock (PR28484)

[Brooks Moses]

Steve Kargl wrote:
> On Sat, Oct 28, 2006 at 12:38:42AM +0200, Tobias Burnus wrote:
>>:ADDPATCH fortran:
>>
>>This patch adds support for using a real variable for count_rate in
>>system_clock as allowed since Fortran 2003.
>>I only added support for real(4) and real(8). If needed be, one can also
>>add real(10) and real(16) -- and integer(16), but I don't see any need
>>for it.
> 
> You'll need to implement the real(10), real(16), and integer(16)
> versions.  If gfortran (on some target) provides any or all of
> these types, then we need intrinsic procedures.

Indeed.  To clarify that, the Fortran Standard says that the intrinsics 
can be called with any real or integer kind, and so not supplying all 
intrinsics for all supported kinds would mean that the compiler isn't 
standard-conforming.

- Brooks