Files
mercury/tests/hard_coded/higher_order_func_test.m
Fergus Henderson afa09e8073 Rename some things to avoid name clashes with functions recently
Estimated hours taken: 0.5

tests/hard_coded/boyer.m:
tests/hard_coded/curry.m:
tests/hard_coded/higher_order_func_test.m:
	Rename some things to avoid name clashes with functions recently
	added to the standard library.  The name clashes resulted in
	ambiguity errors during type checking.
1999-07-08 10:03:55 +00:00

26 lines
667 B
Mathematica

:- module higher_order_func_test.
:- import_module int.
:- interface.
:- import_module std_util, list, io.
:- pred main(io__state::di, io__state::uo) is det.
:- func my_map(func(X) = Y, list(X)) = list(Y).
:- mode my_map(func(in) = out is det, in) = out is det.
:- mode my_map(func(in) = out is semidet, in) = out is semidet.
:- implementation.
my_map(_, []) = [].
my_map(F, [H0|T0]) = [apply(F, H0) | my_map(F, T0)].
main -->
{ L1 = [1,2,3] },
{ L2 = my_map((func(X::in) = (Y::out) is det :- Y = 2*X), L1) },
{ L3 = my_map((func(X2) = Y2 :- Y2 = 5*X2), L2) },
{ L = my_map(func(X3) = 10*X3, L3) },
list__foldl(io__write_int, L),
io__write_string("\n").