| // RUN: %clang_cc1 -fsyntax-only -verify=enabled,sfinae -std=c++20 %s |
| // RUN: %clang_cc1 -fsyntax-only -verify=sfinae -std=c++20 -Wno-void-ptr-dereference %s |
| |
| void f(void* p) { |
| (void)*p; // enabled-error{{ISO C++ does not allow indirection on operand of type 'void *'}} |
| } |
| |
| template<class T> |
| concept deref = requires (T& t) { |
| { *t }; // #FAILED_REQ |
| }; |
| |
| static_assert(deref<void*>); |
| // sfinae-error@-1{{static assertion failed}} |
| // sfinae-note@-2{{because 'void *' does not satisfy 'deref'}} |
| // sfinae-note@#FAILED_REQ{{because '*t' would be invalid: ISO C++ does not allow indirection on operand of type 'void *'}} |
