Files
mercury/tests/invalid/bug117.m
Zoltan Somogyi ffa87fc0d9 Update the programming style of some tests in invalid.
tests/invalid/bug10.{m,err_exp}:
tests/invalid/bug115.{m,err_exp}:
tests/invalid/bug117.{m,err_exp}:
tests/invalid/bug191.{m,err_exp}:
tests/invalid/bug436.{m,err_exp}:
tests/invalid/invalid_binary_literal.{m,err_exp}:
tests/invalid/invalid_decimal_literal.{m,err_exp}:
tests/invalid/invalid_float_literal.{m,err_exp}:
tests/invalid/invalid_hex_literal.{m,err_exp}:
tests/invalid/invalid_octal_literal.{m,err_exp}:
tests/invalid/invalid_pragma.{m,err_exp}:
tests/invalid/require_tailrec_invalid.{m,err_exp}:
tests/invalid/type_lhs_var.{m,err_exp}:
tests/invalid/typeclass_no_param.{m,err_exp}:
tests/invalid/unrecognized_pragma.{m,err_exp}:
    Put vim modelines into these .m files, and improve their
    programming style.

    Update the .err_exp files for the changed line numbers.
2019-07-25 21:42:21 +02:00

29 lines
701 B
Mathematica

%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
% Regression test for bug #117.
%---------------------------------------------------------------------------%
:- module bug117.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is det.
:- implementation.
:- import_module list.
main(!IO):-
extract(hold([])) = List,
List = [Head | _],
io.write_int(Head, !IO),
io.nl(!IO).
:- type hold(T)
---> hold(T).
:- func extract(hold(list(int))) = list(int).
:- mode extract(in) = out(non_empty_list) is det.
extract(hold(X)) = X.