CALLER - determine the caller (parent) of co-routine group.

Usage:

B:
   fcv = caller( [fcv1] );

C:
   void *caller( [void *fcv1] );

Where:

fcv1

points to the control vector of the co-routine whose caller is to be determined. If "fcv1" is not specified, CALLER determines the caller of the current co-routine.

fcv

is a pointer to the control vector of the co-routine which which would gain control if the named co-routine did a DETACH.

Description:

CALLER returns the fcv of the routine which last CALL'ed the specified co-routine, or which last CALL'ed a routine that RESUME'd the specified co-routine (possibly multiple levels of RESUME). In other words, CALLER returns the fcv of the co-routine which would gain control if the specified co-routine did a DETACH.

Normally, CALLER is used without any arguments to determine the caller of the current co-routine.

See Also:

expl b lib call

expl b lib detach

expl b lib resume

Copyright © 1996, Thinkage Ltd.