If it’s a very short file with a main() function, it’s probably a student project or a simple demo script.
Open the file in a text editor. If you see comments about "Mercury Compiler" or "University of Melbourne," it belongs to the Mercury Logic Language .
Because "Mercury" is a planet, many computer science professors and textbook authors use mercury.c as a placeholder name for introductory exercises, such as:
The most common technical reference for mercury.c is related to the . Mercury is a functional logic programming language (similar to Prolog but faster and more robust) designed for large-scale applications.