std::experimental::source_location::file_name
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                    < cpp | experimental | source location
                    
                                                            
                    | constexpr const char* file_name() const; | (library fundamentals TS v2) | |
Returns the name of the current source file represented by this object, represented as a null-terminated byte string.
Parameters
(none)
Return value
The name of the current source file represented by this object, represented as a null-terminated byte string.
Exceptions
noexcept specification:  
noexcept
  Example
| This section is incomplete Reason: no example | 
See also
| return the line number represented by this object (public member function) | |
| return the column number represented by this object (public member function) | |
| return the name of the function represented by this object, if any (public member function) | |
| C++ documentation for Filename and line information | |