c - Meaning of asterisk in these examples

Question

This question already has answers here: question from:https://stackoverflow.com/questions/65599617/meaning-of-asterisk-in-these-examples

Answer 1

_tempnam is a function.
That function takes two parameters.

The first parameter is a pointer to a char.
Any char referenced by that pointer cannot be written-to (it is const).

The second parameter is a pointer to a char.
Any char referenced by that pointer cannot be written-to (it is const).

The return value of the function is a pointer to char.

The rest of the declaration suggests that the function is a C-Runtime-Implementation (CRTIMP), called using the C-calling convention, and does not throw any exceptions.