[gcc r15-2259] c++: add fixed testcase [PR109997]

[Jason Merrill via Gcc-cvs]

https://gcc.gnu.org/g:eebe830013c0d66816dfcae7b7aa77de5646bcad

commit r15-2259-geebe830013c0d66816dfcae7b7aa77de5646bcad
Author: Jason Merrill <ja...@redhat.com>
Date:   Wed Jul 24 11:07:42 2024 -0400

    c++: add fixed testcase [PR109997]
    
    Fixed by r14-9713 for PR100667.
    
            PR c++/109997
    
    gcc/testsuite/ChangeLog:
    
            * g++.dg/ext/is_assignable1.C: New test.

Diff:
---
 gcc/testsuite/g++.dg/ext/is_assignable1.C | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gcc/testsuite/g++.dg/ext/is_assignable1.C 
b/gcc/testsuite/g++.dg/ext/is_assignable1.C
new file mode 100644
index 000000000000..31e64509b452
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/is_assignable1.C
@@ -0,0 +1,4 @@
+// PR c++/109997
+
+struct S;
+bool b = __is_assignable(int, S); // { dg-error "incomplete" }