diff options
| -rw-r--r-- | llvm/lib/Support/Windows/Path.inc | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/llvm/lib/Support/Windows/Path.inc b/llvm/lib/Support/Windows/Path.inc index e352beb77616..365ab01c0a16 100644 --- a/llvm/lib/Support/Windows/Path.inc +++ b/llvm/lib/Support/Windows/Path.inc @@ -19,7 +19,6 @@ #include "llvm/Support/ConvertUTF.h" #include "llvm/Support/WindowsError.h" #include <fcntl.h> -#include <io.h> #include <sys/stat.h> #include <sys/types.h> @@ -352,13 +351,13 @@ std::error_code is_local(const Twine &path, bool &result) { static std::error_code realPathFromHandle(HANDLE H, SmallVectorImpl<wchar_t> &Buffer) { DWORD CountChars = ::GetFinalPathNameByHandleW( - H, Buffer.begin(), Buffer.capacity() - 1, FILE_NAME_NORMALIZED); - if (CountChars > Buffer.capacity()) { + H, Buffer.begin(), Buffer.capacity(), FILE_NAME_NORMALIZED); + if (CountChars && CountChars >= Buffer.capacity()) { // The buffer wasn't big enough, try again. In this case the return value // *does* indicate the size of the null terminator. Buffer.reserve(CountChars); CountChars = ::GetFinalPathNameByHandleW( - H, Buffer.data(), Buffer.capacity() - 1, FILE_NAME_NORMALIZED); + H, Buffer.begin(), Buffer.capacity(), FILE_NAME_NORMALIZED); } if (CountChars == 0) return mapWindowsError(GetLastError()); |