maybe?

Signed-off-by: Rosen Penev <[email protected]>

Author: neheb

include/exiv2/basicio.hpp

@@ -310,6 +310,9 @@ class EXIV2API FileIo : public BasicIo {
         Nonzero if failure.
    */
   int open(const std::string& mode);
+#ifdef _WIN32
+  int open(const std::wstring& mode);
+#endif
   /*!
     @brief Open the file using the default access mode of "rb".
         This method can also be used to "reopen" a file which will flush

src/basicio.cpp

@@ -481,7 +481,11 @@ size_t FileIo::size() const {
 
 int FileIo::open() {
   // Default open is in read-only binary mode
+#ifdef _WIN32
+  return open(L"rb");
+#else
   return open("rb");
+#endif
 }
 
 int FileIo::open(const std::string& mode) {
@@ -501,6 +505,16 @@ int FileIo::open(const std::string& mode) {
   return 0;
 }
 
+#ifdef _WIN32
+int FileIo::open(const std::wstring& mode) {
+  close();
+  p_->opMode_ = Impl::opSeek;
+  if (_wfopen_s(&p_->fp_, p_->wpath_.c_str(), mode.c_str()))
+    return 1;
+  return 0;
+}
+#endif
+
 bool FileIo::isopen() const {
   return p_->fp_ != nullptr;
 }