Yes, I knew that, though I did not mention it. In my previous comment, I was going to say (from memory), that in the second edition, i.e. in ANSI C, both type

Yes, I knew that, though I did not mention it. In my previous comment, I was going to say (from memory), that in the second edition, i.e. in ANSI C, both types of declarations are allowed, old style and new style. Also, if you just wrote the declaration (return value, then function name followed by types with arguments in parentheses), followed by a semicolon, without a function body in braces, it was called a function prototype. MS C (as in, some version of Visual Studio's command line C compiler), had a flag to generate the prototypes from the function definitions. I had used it some. /Zg, possibly.