Peter Gerwinski wrote:

Hi, Raymond Wang,

you wrote:

...

When I compile my pascal code with GNU Pascal's compiler, I get undeclared identifier `Clock' when I reference it in my code:

e.g. y := clock/1000-y1

I thought Clock is a predefined global function.

It is not.

...

What should I do in order for the compiler to recognize the clock command?

If `Clock' stands for what the name suggests, you can write your own one using the `Date' and `Time' routines. Please search the documentation for these words and `GetTimeStamp'.

These routines return real time.

If you want to get processor time (like clock() in C), try GetCPUTime instead (only available in recent GPC versions).

Frank