aLVINlEE9 opened a new pull request, #47593:
URL: https://github.com/apache/arrow/pull/47593
### Rationale for this change
Windows build breaks when UNICODE is defined. The codebase mixes explicit
Wide APIs with generic ones, causing compile errors.
### What changes are included in this PR?
Fixed two API calls to use explicit Wide versions:
- `cpu_info.cc`: `GetModuleHandle("kernel32")` →
`GetModuleHandleW(L"kernel32")`
- `io_util.cc`: `CreateFileMapping(..., "")` → `CreateFileMappingW(..., L"")`
### Are these changes tested?
Yes. Built on Windows 11 with MSVC 2022.
Tested with:
```
cmake .. --preset ninja-debug-minimal -DCMAKE_CXX_FLAGS="-DUNICODE
-D_UNICODE"
cmake --build .
```
Build completes successfully:
```
[197/197] Linking CXX shared library debug\arrow.dll
```
Also verified the build still works without UNICODE defined.
### Are there any user-facing changes?
No. Just fixes a compile error.
- [#47590 ](https://github.com/apache/arrow/issues/47590)
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