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std::experimental::source_location

From cppreference.com
struct source_location;
(library fundamentals TS v2)

The source_location class represents certain information about the source code, such as file names, line numbers, and function names. Previously, functions that desire to obtain this information about the call site (for logging, testing, or debugging purposes) must use function-style macros so that predefined macros like __LINE__ and __FILE__ are expanded in the context of the caller. The source_location class provides a better alternative.

Contents

[edit] Member functions

Creation
constructs a new source_location with implementation-defined values
(public member function) [edit]
[static]
constructs a new source_location
(public static member function) [edit]
Other special member functions
(destructor)
(implicitly declared)
destructs a source_location
(public member function) [edit]
operator=
(implicitly declared)
Implicitly declared copy/move assignment operators
(public member function) [edit]
Field access
return the line number represented by this object
(public member function) [edit]
return the column number represented by this object
(public member function) [edit]
return the file name represented by this object
(public member function) [edit]
return the name of the function represented by this object, if any
(public member function) [edit]

[edit] Example