Errata

The last paragraph of Chapter 4, section Multifile Programs and Modules writes

Note that the resulting code can still be built with ocamlbuild, which will discover dependencies and realize that counter.ml needs to be compiled.

Shouldn't this be

Note that the resulting code can still be built with corebuild, which will discover dependencies and realize that counter.ml needs to be compiled.

since we are using Core.std in the program ?

When attempting to copy/paste the (part 10) snippet into utop, I get the following error:

utop # let run_bench tests =
Bench.bench
~ascii_table:true
~display:Textutils.Ascii_table.Display.column_titles
tests
;;
Error: The function applied to this argument has type ?run_config:Bench.Run_config.t -> ?analysis_configs:Bench.Analysis_config.t list -> ?display_config:Bench.Display_config.t -> ?save_to_file:(Bench.Measurement.t -> string) -> unit
This argument cannot be applied with label ~ascii_table

When I looked up the doc for Bench.bench, I don't see a reference to ~ascii_table or ~display

The example using core_bench, and in particular the part which says:

[cite]
Bench.bench
~ascii_table:true
~display:Textutils.Ascii_table.Display.column_titles
tests
[/cite]

Fails to compile/execute.

Due to an off-by-one error, the fib and fib_norec implementation give different results for `fib 20` : 10946 and 6765, respectively.