# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1530546795 -7200
# Node ID 1b1c1664e7749321fc00bf1e5153730145894c18
# Parent  e9780223ee2f5c82c7377400b8b7f8cd124d9c7d
Employ an explicit temporary variable for the object reference in __BOOL.

diff -r e9780223ee2f -r 1b1c1664e774 templates/progops.c
--- a/templates/progops.c	Mon Jun 25 14:27:00 2018 +0200
+++ b/templates/progops.c	Mon Jul 02 17:53:15 2018 +0200
@@ -1,6 +1,6 @@
 /* Operations depending on program specifics.
 
-Copyright (C) 2015, 2016, 2017 Paul Boddie <paul@boddie.org.uk>
+Copyright (C) 2015, 2016, 2017, 2018 Paul Boddie <paul@boddie.org.uk>
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -301,7 +301,9 @@
 {
     /* Invoke the bool function with the object and test against True. */
 
-    return __VALUE(attr) == &__predefined___builtins___boolean_True ? 1 :
-           __VALUE(attr) == &__predefined___builtins___boolean_False ? 0 :
+    __ref value = __VALUE(attr);
+
+    return value == &__predefined___builtins___boolean_True ? 1 :
+           value == &__predefined___builtins___boolean_False ? 0 :
            __VALUE(__fn___builtins___boolean_bool(__NULL, attr)) == &__predefined___builtins___boolean_True;
 }