From: Markus Triska <triska@metalevel.at>
Date: Sat, 4 Sep 2021 20:02:17 +0000 (+0200)
Subject: use round brackets for meta_predicate declarations
X-Git-Tag: v0.9.0~44^2
X-Git-Url: https://git.sagredo.dev/?a=commitdiff_plain;h=ded4a75b9cfc11ef439d2a4871d109172fb75b23;p=scryer-prolog.git

use round brackets for meta_predicate declarations

This is because meta_predicate is not a standard operator.
---

diff --git a/src/lib/pio.pl b/src/lib/pio.pl
index 62a59d99..c9653b72 100644
--- a/src/lib/pio.pl
+++ b/src/lib/pio.pl
@@ -9,9 +9,9 @@
 :- use_module(library(lists), [member/2]).
 :- use_module(library(format), [format/3]).
 
-:- meta_predicate phrase_from_file(2, ?).
-:- meta_predicate phrase_from_file(2, ?, ?).
-:- meta_predicate phrase_to_file(2, ?).
+:- meta_predicate(phrase_from_file(2, ?)).
+:- meta_predicate(phrase_from_file(2, ?, ?)).
+:- meta_predicate(phrase_to_file(2, ?)).
 
 phrase_from_file(NT, File) :-
     phrase_from_file(NT, File, []).