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-rw-r--r--gcc/cp/constraint.cc14
-rw-r--r--gcc/testsuite/g++.dg/concepts/pr95386.C11
2 files changed, 18 insertions, 7 deletions
diff --git a/gcc/cp/constraint.cc b/gcc/cp/constraint.cc
index eb72bfe..92ff283 100644
--- a/gcc/cp/constraint.cc
+++ b/gcc/cp/constraint.cc
@@ -2490,15 +2490,15 @@ satisfy_disjunction (tree t, tree args, subst_info info)
tree
satisfaction_value (tree t)
{
- if (t == error_mark_node)
+ if (t == error_mark_node || t == boolean_true_node || t == boolean_false_node)
return t;
- if (t == boolean_true_node || t == integer_one_node)
- return boolean_true_node;
- if (t == boolean_false_node || t == integer_zero_node)
- return boolean_false_node;
- /* Anything else should be invalid. */
- gcc_assert (false);
+ gcc_assert (TREE_CODE (t) == INTEGER_CST
+ && same_type_p (TREE_TYPE (t), boolean_type_node));
+ if (integer_zerop (t))
+ return boolean_false_node;
+ else
+ return boolean_true_node;
}
/* Build a new template argument list with template arguments corresponding
diff --git a/gcc/testsuite/g++.dg/concepts/pr95386.C b/gcc/testsuite/g++.dg/concepts/pr95386.C
new file mode 100644
index 0000000..3c683e5
--- /dev/null
+++ b/gcc/testsuite/g++.dg/concepts/pr95386.C
@@ -0,0 +1,11 @@
+// PR c++/95386
+// { dg-do compile { target concepts } }
+
+template <typename> struct blah {
+ typedef bool value_type;
+ constexpr operator value_type() { return false; }
+};
+
+template <class T> void fn1(T) requires (!blah<T>());
+
+void fn2() { fn1(0); }