[nhc-users] heap profiling

[Malcolm Wallace]

> Do you know what the following mean in a heap profile? _apply3 is the
> one I'm particularly interested in.
> 
>   Prelude._apply3
>   Prelude._apply1

They have the following definitions:

    _apply3 f a b c = f a b c
    _apply1 f a     = f a

They are introduced internally by the compiler, basically to ensure
the correct lazy semantics at certain points.  Ideally, the heap
profiling code ought to hide them from the user, and re-attribute
their costs to the 'f' that they are disguising.

Regards,
    Malcolm