Hi all, In GCC-13.2.0 , I have observed test case failures for bad-mapper-3.C as bellow: FAIL: g++.dg/modules/bad-mapper-3.C -std=c++17 at line 3 (test for errors, line ) FAIL: g++.dg/modules/bad-mapper-3.C -std=c++17 (test for excess errors) FAIL: g++.dg/modules/bad-mapper-3.C -std=c++2a at line 3 (test for errors, line ) FAIL: g++.dg/modules/bad-mapper-3.C -std=c++2a (test for excess errors) FAIL: g++.dg/modules/bad-mapper-3.C -std=c++2b at line 3 (test for errors, line ) FAIL: g++.dg/modules/bad-mapper-3.C -std=c++2b (test for excess errors) But from GCC-test results Archives for i had not found this test in their failure list. The archives links for GCC-13.2.0 are below : https://gcc.gnu.org/pipermail/gcc-testresults/2023-November/800222.html https://gcc.gnu.org/pipermail/gcc-testresults/2023-November/801217.html Why the above test case failures are not there in the test results archives. Command used for running the test case is: make check-gcc RUNTESTFLAGS="modules.exp=bad-mapper-3.C" Your assistance is highly valuable, and I look forward to your response. Thanks and regards, Harish Sadineni