Thanks for the history. Comp has always puzzled me before, especially
with these two functions from the RTL
function MSecsToTimeStamp(MSecs: Comp): TTimeStamp;
function TimeStampToMSecs(const TimeStamp: TTimeStamp): comp;
I assume that these have come down from Turbo Pascal - but it still
seems odd that milliseconds is represented by a "real" type.
Tony Whyman
On 10/01/18 08:04, Jonas Maebe wrote:
Mattias Gaertner wrote:
Comp is Int64 div 10000.
No, that is currency. Comp is a plain 64 bit integer. It originally
comes from Turbo Pascal, which did not have a regular 64 bit integer
type. The x87 fpu can be used to perform 64 bit integer math though, so
it was originally a 64 bit integer type whose calculations were
performed using the fpu.
In FPC, it's the same on platforms that still use the x87 fpu. On other
platforms, comp is an alias for the int64 type.
Jonas
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