file_util: return string by const reference for GetExeDirectory()
This disallows modifying the internal string buffer (which shouldn't be modified anyhow).
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@ -591,7 +591,7 @@ std::string GetBundleDirectory() {
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#endif
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#ifdef _WIN32
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std::string& GetExeDirectory() {
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const std::string& GetExeDirectory() {
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static std::string exe_path;
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if (exe_path.empty()) {
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wchar_t wchar_exe_path[2048];
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@ -133,7 +133,7 @@ std::string GetBundleDirectory();
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#endif
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#ifdef _WIN32
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std::string& GetExeDirectory();
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const std::string& GetExeDirectory();
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std::string AppDataRoamingDirectory();
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#endif
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