function 'error_code' should be marked [[nodiscard]] 

function-like macro 'THROW_LIMESTONE_EXCEPTION' used; consider a 'constexpr' template function 

function-like macro 'THROW_LIMESTONE_IO_EXCEPTION' used; consider a 'constexpr' template function 

function-like macro 'LOG_AND_THROW_EXCEPTION' used; consider a 'constexpr' template function 

macro argument should be enclosed in parentheses 

function-like macro 'LOG_AND_THROW_IO_EXCEPTION' used; consider a 'constexpr' template function 

class 'file_operations' defines a default destructor but does not define a copy constructor, a copy assignment operator, a move constructor or a move assignment operator 

redundant access specifier has the same accessibility as the previous access specifier