https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101741
--- Comment #2 from Arseny Solokha <asolokha at gmx dot com> --- (In reply to Martin Liška from comment #1) > why is the test-case marked as "invalid"? It is definitely well-formed syntactically, but I'm not sure how to classify a case of redefining a standard function which has a builtin in gcc w/ a function w/ different return type. Is there any guidance that I could refer to in the future when telling valid testcases from invalid ones?
