[libc-commits] [libc] [libc] disable -Wtype-limits in wctob (PR #74511)

[Joseph Huber via libc-commits]

jhuber6 wrote:

> my SFINAE skills are rusty, but I wonder if `std::is_signed` can be used here?

I was just about to comment the same thing. We should be able to do something like this
```c++
if constexpr (cpp::is_signed<wint_t>) {
} else {
}
```

https://github.com/llvm/llvm-project/pull/74511