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std::source_location::file_name

From cppreference.com
 
 
Utilities library
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constexpr const char* file_name() const noexcept;
(since C++20)

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 <iostream>
#include <source_location>
 
void print_this_file_name(
    std::source_location location = std::source_location::current())
{
    // Name of file that contains the call site of this function.
    std::cout << "File: " << location.file_name() << '\n';
}
 
int main()
{
#line 1 "cppreference.cpp"
    print_this_file_name();
}

Output:

File: cppreference.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]
gets the name of the source file that lexically contains the expression or statement whose evaluation is represented by the stacktrace_entry
(public member function of std::stacktrace_entry) [edit]
Filename and line information