From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001 From: "Zancanaro; Carlo" Date: Mon, 24 Sep 2012 09:58:17 +1000 Subject: Add the clang library to the repo (with some of my changes, too). --- clang/test/SemaCXX/libstdcxx_is_pod_hack.cpp | 33 ++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 clang/test/SemaCXX/libstdcxx_is_pod_hack.cpp (limited to 'clang/test/SemaCXX/libstdcxx_is_pod_hack.cpp') diff --git a/clang/test/SemaCXX/libstdcxx_is_pod_hack.cpp b/clang/test/SemaCXX/libstdcxx_is_pod_hack.cpp new file mode 100644 index 0000000..3ac2336 --- /dev/null +++ b/clang/test/SemaCXX/libstdcxx_is_pod_hack.cpp @@ -0,0 +1,33 @@ +// RUN: %clang_cc1 -fsyntax-only %s + +// This is a test for an egregious hack in Clang that works around +// issues with GCC's evolution. libstdc++ 4.2.x uses __is_pod as an +// identifier (to declare a struct template like the one below), while +// GCC 4.3 and newer make __is_pod a keyword. Clang treats __is_pod as +// a keyword *unless* it is introduced following the struct keyword. + +template +struct __is_pod { +}; + +__is_pod ipi; + +// Ditto for __is_same. +template +struct __is_same { +}; + +__is_same isi; + +// Another, similar egregious hack for __is_signed, which is a type +// trait in Embarcadero's compiler but is used as an identifier in +// libstdc++. +struct test_is_signed { + static const bool __is_signed = true; +}; + +bool check_signed = test_is_signed::__is_signed; + +#if __has_feature(is_pod) +# error __is_pod won't work now anyway +#endif -- cgit v1.2.3