diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/cpp0x/constexpr-union.C')
-rw-r--r-- | gcc/testsuite/g++.dg/cpp0x/constexpr-union.C | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp0x/constexpr-union.C b/gcc/testsuite/g++.dg/cpp0x/constexpr-union.C new file mode 100644 index 000000000..b4613058e --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/constexpr-union.C @@ -0,0 +1,16 @@ +// Test that we don't have to deal with type punning +// FIXME Mike Miller thinks it should work +// { dg-options -std=c++0x } + +union U +{ + float f; + unsigned char ca[sizeof(float)]; +}; + +constexpr U u = { 1.0 }; +constexpr float f = u.f; +constexpr unsigned char c = u.ca[0]; // { dg-error "U::ca" } + +constexpr double d = 1.0; +constexpr unsigned char c2 = (unsigned char&)d; // { dg-error "char. glvalue" } |