Hi, the attached patch marks vector:: and string::empty() as warn_unused_result. It looks like it's fairly often confused with clear() in practice:
https://breakpad.appspot.com/377003/ http://codereview.chromium.org/10034006/ http://www.viva64.com/en/a/0079/ (search for "empty") See also http://llvm.org/bugs/show_bug.cgi?id=10011 for a more general approach. Nico
libcxx-unused.patch
Description: Binary data
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