Use goo[gle]d C++

Check this links and fixes translator
[**always use explicit constructor**](https://google.github.io/styleguide/cppguide.html#Explicit_Constructors)
[**always use explicit operator conversions**](https://google.github.io/styleguide/cppguide.html#Implicit_Conversions)

bonus:
use next structure to translate constructors
```cpp
public: constructor(integral_type a, non_integral_type b) noexcept ( /* if body is empty */ )
: a(a), b(std::move(b)) // or _a(a), _b(std::move(b))
{
}
```

No files, tests, or entry points are named. Start by locating the translator rules that generate constructors and conversion operators, then compare their output with the linked Google C++ style guidance; done means generated C++ follows the requested explicit-conversion and constructor structure.

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