| Issue |
134867
|
| Summary |
reinterpret_cast from const void* to function pointer does not compile
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
StilesCrisis
|
GCC and MSVC both allow a reinterpret_cast to convert from a `const void*` to `void (*)(void*)`.
Clang refuses because we are "casting away qualifiers" (const), but there is no qualifier to add on the function-pointer side. There is no syntax for assigning values into a function pointer and there is no possible addition of `const` into the function pointer type which makes the cast allowed.
This can be worked around by using const_cast to strip the const off the void*, or by using a C-style cast, but this seems like it shouldn't be necessary, and no other mainstream compiler requires it.
Example: https://godbolt.org/z/7rxqss7nT
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