Merge pull request #278 from anutosh491/wchar_t

Use GetModuleFileNameW for wchar_t array

include/xtl/xsystem.hpp

@@ -49,7 +49,11 @@ namespace xtl
  inline std::string executable_path()
  {
  std::string path;
- char buffer[1024];
+#if defined(UNICODE)
+ wchar_t buffer[1024];
+#else
+ char buffer[1024];
+#endif
  std::memset(buffer, '\0', sizeof(buffer));
 #if defined(__linux__)
  if (readlink("/proc/self/exe", buffer, sizeof(buffer)) != -1)
@@ -61,14 +65,21 @@ namespace xtl
  // failed to determine run path
  }
 #elif defined (_WIN32)
- if (GetModuleFileName(nullptr, buffer, sizeof(buffer)) != 0)
+ #if defined(UNICODE)
+ if (GetModuleFileNameW(nullptr, buffer, sizeof(buffer)) != 0)
  {
- path = buffer;
+ // Convert wchar_t to std::string
+ std::wstring wideString(buffer);
+ std::string narrowString(wideString.begin(), wideString.end());
+ path = narrowString;
  }
- else
+ #else
+ if (GetModuleFileNameA(nullptr, buffer, sizeof(buffer)) != 0)
  {
- // failed to determine run path
+ path = buffer;
  }
+ #endif
+ // failed to determine run path
 #elif defined (__APPLE__)
  std::uint32_t size = sizeof(buffer);
  if(_NSGetExecutablePath(buffer, &size) == 0)