req package:base
Request a heap census on the next context switch. The census can be
requested whether or not the heap profiling timer is running.
Note: This won't do anything unless you also specify a profiling mode
on the command line using the normal RTS options.
no option processing after first non-option
Compare the underlying pointers of two values for equality.
Returns
1 if the pointers are equal and
0 otherwise.
The two values must be of the same type, of kind
Type. See
also
reallyUnsafePtrEquality#, which doesn't have such
restrictions.
Compare the underlying pointers of two unlifted values for equality.
This is less dangerous than
reallyUnsafePtrEquality, since the
arguments are guaranteed to be evaluated. This means there is no risk
of accidentally comparing a thunk. It's however still more dangerous
than e.g.
sameArray#.