Fix issues with valgrind running on g++-14

Author: etr

.github/workflows/verify-build.yml

@@ -222,8 +222,8 @@ jobs:
             os-type: ubuntu
             build-type: valgrind
             compiler-family: gcc
-            c-compiler: gcc-13
-            cc-compiler: g++-13
+            c-compiler: gcc-14
+            cc-compiler: g++-14
             debug: nodebug
             coverage: nocoverage
           - test-group: extra

test/littletest.hpp

@@ -70,6 +70,7 @@
 #define LT_BEGIN_TEST(__lt_suite_name__, __lt_test_name__) \
     struct __lt_test_name__ ## _class: public __lt_suite_name__, littletest::test<__lt_test_name__ ## _class> \
     { \
+            using littletest::test_base::operator(); \
             __lt_test_name__ ## _class() \
             { \
                 __lt_name__ = #__lt_test_name__; \