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Diffstat (limited to 'gcc/testsuite/g++.dg/cpp0x/iop.C')
-rw-r--r-- | gcc/testsuite/g++.dg/cpp0x/iop.C | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp0x/iop.C b/gcc/testsuite/g++.dg/cpp0x/iop.C new file mode 100644 index 000000000..834cd314a --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/iop.C @@ -0,0 +1,41 @@ +// I, Howard Hinnant, hereby place this code in the public domain. + +// Test that the implicit object parameter is *not* an rvalue reference, but is instead +// identical to that specified in C++03. That is, the implicit object parameter is +// an lvalue reference that can bind to an rvalue. :-\ +// See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html under the +// section "Revision 1 Summary and Rationale" for more details. + +// { dg-do compile } +// { dg-options "-std=c++0x" } + +template <bool> struct sa; +template <> struct sa<true> {}; + +struct one {long x[1];}; +struct two {long x[2];}; + +struct os +{ + one operator<<(int); +}; + +struct A +{ + A(int); +}; + +two operator<<(os&, const A&); + +void test() +{ + os o; + sa<sizeof(o << 1) == 1 * sizeof(long)> t1; // Calls os::operator<<(int) + // Would be ambiguous if the implicit object parameter + // was an rvalue reference. +} + +int main() +{ + return 0; +} |