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std::experimental::source_location::file_name

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Experimental
Technical Specification
Filesystem library (filesystem TS)
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Library fundamentals 3 (library fundamentals TS v3)
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Extensions for concurrency 2 (concurrency TS v2)
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constexpr const char* file_name() const noexcept;
(library fundamentals TS v2)

Returns the name of the current source file represented by this object, represented as a null-terminated byte string.

Contents

[edit] Parameters

(none)

[edit] Return value

The name of the current source file represented by this object, represented as a null-terminated byte string.

[edit] Example

#include <experimental/source_location>
#include <iostream>
 
inline void print_this_file_name(
    const std::experimental::source_location& location
        = std::experimental::source_location::current())
{
    // Name of file that contains the call-site of this function.
    std::cout << "File: " << location.file_name() << '\n';
}
 
int main()
{
    print_this_file_name();
}

Possible output:

File: main.cpp

[edit] See also

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 name of the function represented by this object, if any
(public member function) [edit]
C++ documentation for Filename and line information