| Issue |
169642
|
| Summary |
[libc++] `std::find` on array of shorts always returns `last` when `-fshort-wchar` used.
|
| Labels |
libc++
|
| Assignees |
|
| Reporter |
kacprzak
|
Program returns length of `xs` array instead `0` when `-fshort-wchar` is used during compilation. Works as expected when `libc++` is not used.
```
#include <algorithm>
#include <array>
int main() {
std::array<short, 2> xs = {-1, -1};
auto it = std::find(xs.begin(), xs.end(), -1);
return std::distance(xs.begin(), it);
}
```
Results on Ubuntu 24.04.03 LTS (LLVM 20):
```
$ clang++ main.cpp -stdlib=libc++ -fshort-wchar && ./a.out; echo $?
2
$ clang++ main.cpp -stdlib=libc++ && ./a.out; echo $?
0
$ clang++ main.cpp -fshort-wchar && ./a.out; echo $?
0
```
Compiler Explorer: https://godbolt.org/z/1focfKnqM
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