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Issues list

Clang fails to consider default arguments reachable at the instantiation context accepts-invalid c++ clang:frontend Language frontend issues, e.g. anything involving "Sema" confirmed Verified by a second party diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue miscompilation rejects-valid
#135442 opened Apr 11, 2025 by hubert-reinterpretcast
2
template instantiation from dependent function parameter should be ill-formed. clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#133208 opened Mar 27, 2025 by changkhothuychung
@changkhothuychung
8
Clang parses header names incorrectly as strings accepts-invalid clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue rejects-valid
#132643 opened Mar 23, 2025 by hubert-reinterpretcast
3
[clang] clang fails to recognize a reference binding from prvalue with const qualification to rvalue ref during overloading resolution is ill-formed. clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#132600 opened Mar 23, 2025 by changkhothuychung
1
@changkhothuychung
6
clang accepts partial template specialization without base clang:frontend Language frontend issues, e.g. anything involving "Sema" cwg-issue An issue that was filed to the Core Working Group diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue
#131835 opened Mar 18, 2025 by abellgithub
5
The presence of an overloaded operator in the same namespace prevents implicit conversions from occurring clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#128902 opened Feb 26, 2025 by PiliLatiesa
1
1
[Clang] Accepts invalid lambda init-capture shadowing a template parameter accepts-invalid clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue lambda C++11 lambda expressions
#126392 opened Feb 9, 2025 by MagentaTreehouse
4
Clang fails to compile when using std::tuple_size_v<T> in concept, but compiles with std::tuple_size<T>::value clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler needs-reduction Large reproducer that should be reduced into a simpler form
#125441 opened Feb 2, 2025 by Taw3e8
6
Aliases and uniqueness of lambda in default argument of a class template parameter clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#123414 opened Jan 17, 2025 by cor3ntin
2
[Clang] Valid candidate template function seems to be overlooked during explicit instantiation with specialized template class clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#121924 opened Jan 7, 2025 by wangbo15
3
Clang allows template constructor to have different template argument list with that of class definition with default argument clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue
#121882 opened Jan 7, 2025 by wangbo15
5
Clang does not realize inaccessible user-defined operator delete until it is called clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#121645 opened Jan 4, 2025 by wangbo15
1
Clang disallows brace elision in designated initializer of member array when constructing a temporary function parameter clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#121553 opened Jan 3, 2025 by wangbo15
2
Clang accepts invalid static_cast from derived type to private base type in case of rvalue reference clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#121429 opened Jan 1, 2025 by wangbo15
1
2
[Clang] template class with default non-type parameter is never matched in return type of function with variadic template parameter clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#121381 opened Dec 31, 2024 by wangbo15
1
[clang] Dynamic initialization of an array of objects with a private destructor is rejected by clang clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#121319 opened Dec 30, 2024 by Rush10233
5
Constraints of template template parameter not checked for non-dependent arguments despite [temp.names]/8 c++20 clang:frontend Language frontend issues, e.g. anything involving "Sema" concepts C++20 concepts diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#121008 opened Dec 23, 2024 by hubert-reinterpretcast
3
[Clang] constexpr variables wrongfully treated as captures in certain lambdas c++20 clang:frontend Language frontend issues, e.g. anything involving "Sema" constexpr Anything related to constant evaluation diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue lambda C++11 lambda expressions
#120503 opened Dec 19, 2024 by yuxuanchen1997
6
__builtin_bit_cast to bool diverges from GCC's behavior clang:frontend Language frontend issues, e.g. anything involving "Sema" constexpr Anything related to constant evaluation diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#120211 opened Dec 17, 2024 by tbaederr
8
[Clang] Variable template partial specialization cannot specialize primary template with auto NTTP clang:frontend Language frontend issues, e.g. anything involving "Sema" constexpr Anything related to constant evaluation diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#118190 opened Dec 1, 2024 by MagentaTreehouse
3
[clang] Failure when upcasting to a base class in trailing return type expression clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue rejects-valid
#114024 opened Oct 29, 2024 by carlosgalvezp
10
A constexpr virtual function rejects valid usage of CRTP type as "incomplete type" - compiles with gcc clang:frontend Language frontend issues, e.g. anything involving "Sema" constexpr Anything related to constant evaluation diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#113801 opened Oct 27, 2024 by kirshamir
3
Incorrect treatment of consecutive ## operators (compared with GCC). clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#112122 opened Oct 13, 2024 by mrolle45
10
[[maybe_unused]] attribute used inside a template argument specifying a type of a function causes a compilation error clang:diagnostics New/improved warning or error message in Clang, but not in clang-tidy or static analyzer confirmed Verified by a second party diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:gcc Does the clang frontend diverge from gcc on this issue diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#108095 opened Sep 10, 2024 by jarzec
1
Redeclaration of explicitly defaulted comparison operator makes it undefined clang:frontend Language frontend issues, e.g. anything involving "Sema" diverges-from:edg Does the clang frontend diverge from edg compiler diverges-from:msvc Does the clang frontend diverge from msvc on this issue
#105248 opened Aug 20, 2024 by Fedr
1
ProTip! What’s not been updated in a month: updated:<2025-03-21.