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// RUN: %clang_cc1 -std=c++23 -fsyntax-only -verify=cxx23,new %s
// RUN: %clang_cc1 -std=c++23 -fsyntax-only -fms-compatibility -verify=cxx23,old %s
// RUN: %clang_cc1 -std=c++20 -fsyntax-only -verify=cxx20,old %s
// FIXME: This is a test for a temporary workaround where we disable simpler implicit moves
// in the STL when compiling with -fms-compatibility, because of issues with the
// implementation there.
// Feel free to delete this file when the workaround is not needed anymore.
#if __INCLUDE_LEVEL__ == 0
#if __cpluscplus > 202002L && __cpp_implicit_move < 202011L
#error "__cpp_implicit_move not defined correctly"
#endif
struct nocopy {
nocopy(nocopy &&);
};
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
namespace {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
namespace std {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
} // namespace std
} // namespace foo
namespace std {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
namespace {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
} // namespace foo
} // namespace std
#include __FILE__
#define SYSTEM
#include __FILE__
#elif !defined(SYSTEM)
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
namespace {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
namespace std {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
} // namespace std
} // namespace foo
namespace std {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
namespace {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
} // namespace foo
} // namespace std
#else
#pragma GCC system_header
int &&st1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
namespace {
int &&st1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&st1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
namespace std {
int &&st1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // cxx23-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
} // namespace std
} // namespace foo
namespace std {
int &&st1(int &&x) { return x; } // old-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // new-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
namespace {
int &&st1(int &&x) { return x; } // old-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // new-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&st1(int &&x) { return x; } // old-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // new-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
} // namespace foo
} // namespace std
#endif
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