[libcxx-commits] [PATCH] D91169: [14/N] [libcxx] Implement the current_path function for windows

[Martin Storsjö via Phabricator via libcxx-commits]

mstorsjo created this revision.
mstorsjo added a reviewer: libc++.
Herald added a project: libc++.
Herald added 1 blocking reviewer(s): libc++.
mstorsjo requested review of this revision.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D91169

Files:
  libcxx/src/filesystem/operations.cpp


Index: libcxx/src/filesystem/operations.cpp
===================================================================
--- libcxx/src/filesystem/operations.cpp
+++ libcxx/src/filesystem/operations.cpp
@@ -1135,6 +1135,13 @@
 path __current_path(error_code* ec) {
   ErrorHandler<path> err("current_path", ec);
 
+#if defined(_LIBCPP_WIN32API)
+  std::unique_ptr<wchar_t, decltype(&::free)> buff(::_wgetcwd(nullptr, 0),
+                                                   &::free);
+  if (buff.get() == nullptr)
+    return err.report(capture_errno(), "call to _wgetcwd failed");
+  return {buff.get()};
+#else
   auto size = ::pathconf(".", _PC_PATH_MAX);
   _LIBCPP_ASSERT(size >= 0, "pathconf returned a 0 as max size");
 
@@ -1144,6 +1151,7 @@
     return err.report(capture_errno(), "call to getcwd failed");
 
   return {buff.get()};
+#endif
 }
 
 void __current_path(const path& p, error_code* ec) {


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