Experimental Physics and
Industrial Control System

"J. Lewis Muir" <[email protected]> · Fri, 18 May 2018 15:38:14 -0500

On 05/18, J. Lewis Muir wrote:
> On 05/18, Mark Rivers wrote:
> > I think the bit rates are normally in the range of 10,000 to 100,000
> > and unlikely to exceed 32 bit integer.
> 
> Of course, you could have some crazy bitrate like 2,985,984,000 bps
> (uncompressed 24-bit color 1080p at 60 fps) that would not fit, but I
> guess I'm unlikely to run into that, so I'll just do the conversion from
> 64-bit integer to 32-bit integer and return an error if it won't fit.

Hmm, EPICS 3.14 provides architecture independent data types (e.g.,
epicsInt32) in src/libCom/misc/epicsTypes.h, but I don't see where it
provides constants for the minimum and maximum values of those data
types (e.g., EPICS_INT32_MIN and EPICS_INT32_MAX).  Are these provided
anywhere?

If not, does EPICS currently only support platforms that represent
signed integers using the two's complement system such that I could
safely assume the minimum and maximum values of epicsInt32 are
-2,147,483,647 and 2,147,483,647, respectively?

Thanks,

Lewis

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System