From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/g++.dg/template/sfinae17.C | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 gcc/testsuite/g++.dg/template/sfinae17.C (limited to 'gcc/testsuite/g++.dg/template/sfinae17.C') diff --git a/gcc/testsuite/g++.dg/template/sfinae17.C b/gcc/testsuite/g++.dg/template/sfinae17.C new file mode 100644 index 000000000..eb043cbdd --- /dev/null +++ b/gcc/testsuite/g++.dg/template/sfinae17.C @@ -0,0 +1,28 @@ +// The conversion from D* to B* is ambiguous, but that should not produce +// an error, it should remove the first f overload by SFINAE. + +#define static_assert(TEST,STR) \ + do { int ar[(TEST)?1:-1]; } while (0); + +struct B {}; + +struct B1 : B {}; +struct B2 : B {}; + +struct D : B1, B2 {}; + +template T create(); + +typedef char one[1]; +typedef char two[2]; + +template + one &f(char (*)[sizeof static_cast(create())]); +template + two &f(...); + +int main() +{ + static_assert(sizeof f(0) == sizeof(two), ""); + static_assert(sizeof f(0) == sizeof(two), ""); +} -- cgit v1.2.3