John Maddock wrote:
Would somebody like to produce a patch?
I'm trying to but have hit a snag. I have this as boost_no_cxx11_addressof.ipp: #include <memory> namespace boost_no_cxx11_addressof { void x3() { } int test() { int x1, x2[3]; return std::addressof(x1) != &x1 || std::addressof(x2) != &x2 || std::addressof(x3) != &x3; } } That is, I am not just testing whether std::addressof compiles, I'm also testing if it actually works. This is a problem because the expectation for this file is to fail compilation when the macro ought to be set. However, it sometimes fails compilation (when std::addressof is not present at all), and sometimes fails at runtime (when std::addressof is present but doesn't pass the test, as in VC++12). And we don't have a rule for that. compile-fail always wants it to fail compilation; run-fail always wants it to compile/link and only then fail. I don't know how one can express "this test should fail at compile time or at run time" in Boost.Build.