HelenOS sources

error_code        177 uspace/lib/cpp/include/__bits/system_error.hpp     class error_code
error_code        126 uspace/lib/cpp/src/system_error.cpp     error_code::error_code() noexcept
error_code        130 uspace/lib/cpp/src/system_error.cpp     error_code::error_code(int val, const error_category& cat) noexcept