6685e56ced
as Discussed: https://discourse.llvm.org/t/rfc-can-we-stop-the-extension-to-allow-dereferencing-void-in-c/65708 There is no good reason to allow this when the other compilers all reject this, and it messes with SFINAE/constraint checking. Differential Revision: https://reviews.llvm.org/D135287
17 lines
622 B
C++
17 lines
622 B
C++
// RUN: %clang_cc1 -fsyntax-only -verify=enabled,sfinae -std=c++20 %s
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// RUN: %clang_cc1 -fsyntax-only -verify=sfinae -std=c++20 -Wno-void-ptr-dereference %s
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void f(void* p) {
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(void)*p; // enabled-error{{ISO C++ does not allow indirection on operand of type 'void *'}}
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}
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template<class T>
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concept deref = requires (T& t) {
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{ *t }; // #FAILED_REQ
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};
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static_assert(deref<void*>);
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// sfinae-error@-1{{static assertion failed}}
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// sfinae-note@-2{{because 'void *' does not satisfy 'deref'}}
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// sfinae-note@#FAILED_REQ{{because '*t' would be invalid: ISO C++ does not allow indirection on operand of type 'void *'}}
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