Author: Shengxin Pei Date: 2026-08-24T03:40:49+08:00 New Revision: 6b130f69f8f97b2c3306fe3fd70e3c11eb9701ef
URL: https://github.com/llvm/llvm-project/commit/6b130f69f8f97b2c3306fe3fd70e3c11eb9701ef DIFF: https://github.com/llvm/llvm-project/commit/6b130f69f8f97b2c3306fe3fd70e3c11eb9701ef.diff LOG: [clang] Add test for CWG 2006 and update status (#215259) Clang already supports CWG 2006. Adding test cases and updating `cxx_dr_status.html` to 2.7. https://cplusplus.github.io/CWG/issues/2006.html Assisted by Claude. Added: Modified: clang/test/CXX/drs/cwg20xx.cpp clang/www/cxx_dr_status.html Removed: ################################################################################ diff --git a/clang/test/CXX/drs/cwg20xx.cpp b/clang/test/CXX/drs/cwg20xx.cpp index 75b4094283db0..5c23ef9c5240b 100644 --- a/clang/test/CXX/drs/cwg20xx.cpp +++ b/clang/test/CXX/drs/cwg20xx.cpp @@ -11,6 +11,92 @@ // cxx98-error@-1 {{variadic macros are a C99 feature}} #endif +namespace std { class type_info; } +namespace cwg2006 { // cwg2006: 2.7 + void test_object_pointer(const void *cp, volatile void *vp, const volatile void *cvp) { + (void)static_cast<const void*>(cp); + (void)static_cast<volatile void*>(vp); + (void)static_cast<const volatile void*>(cvp); + + int x = 0; + const int cx = 0; + const void *p1 = &x; + const void *p2 = &cx; + (void)p1; + (void)p2; + } + + void test_cast(int x) { + (const void)x; + (volatile void)x; + (const volatile void)x; + } + + const void get_const_void() +#if __cplusplus >= 201103L + noexcept +#endif + {} + + volatile void get_volatile_void() +#if __cplusplus >= 201103L + noexcept +#endif + {} + // since-cxx20-warning@-5 {{volatile-qualified return type 'volatile void' is deprecated}} + + const volatile void get_cv_void() +#if __cplusplus >= 201103L + noexcept +#endif + {} + // since-cxx20-warning@-5 {{volatile-qualified return type 'const volatile void' is deprecated}} + + void test_return() { + return get_const_void(); + } + + void test_return_volatile() { + return get_volatile_void(); + } + + void test_return_cv() { + return get_cv_void(); + } + + void test_conditional(bool b) { + b ? get_const_void() : get_const_void(); + b ? get_volatile_void() : get_const_void(); + b ? get_cv_void() : get_const_void(); + } + + void test_typeid() { + (void)typeid(const void); + (void)typeid(volatile void); + (void)typeid(const volatile void); + } + + void test_traits(){ + static_assert(!__is_complete_type(const void), ""); + static_assert(!__is_complete_type(volatile void), ""); + static_assert(!__is_complete_type(const volatile void), ""); + + static_assert(!__is_object(const void), ""); + static_assert(!__is_object(volatile void), ""); + static_assert(!__is_object(const volatile void), ""); + } + +#if __cplusplus >= 201103L + void test_cxx11() { + decltype(get_const_void()) *p = nullptr; + static_assert(noexcept(get_const_void()), ""); + + using CommonType = decltype(true ? get_const_void() : get_volatile_void()); + static_assert(__is_same(CommonType, void), ""); + } +#endif +} // namespace cwg2006 + namespace cwg2007 { // cwg2007: 3.4 template<typename T> struct A { typename T::error e; }; template<typename T> struct B { }; diff --git a/clang/www/cxx_dr_status.html b/clang/www/cxx_dr_status.html index ec29200198554..2d4449767f463 100755 --- a/clang/www/cxx_dr_status.html +++ b/clang/www/cxx_dr_status.html @@ -13831,7 +13831,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2> <td>[<a href="https://wg21.link/basic.compound";>basic.compound</a>]</td> <td>CD4</td> <td>Cv-qualified <TT>void</TT> types</td> - <td class="unknown" align="center">Unknown</td> + <td class="full" align="center">Clang 2.7</td> </tr> <tr id="2007"> <td><a href="https://cplusplus.github.io/CWG/issues/2007.html";>2007</a></td> _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
