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.
(none).
The name of the current source file represented by this object, represented as a null-terminated byte string.
#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
| 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++23) | 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) |
| Filename and line information | |
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https://en.cppreference.com/w/cpp/utility/source_location/file_name