The precedence of the factorial operator

Back when I added a factorial operator to my assembler , the code only applied it to numeric literals because the code that implemented it appeared in the same function as parsing a numeric literal. I only found the bug when I tried to apply a factorial to a subexpression in parenthesis, for example, -(2+1)!. The fix was easy, just move the code out of the numberic literal parsing routine rvalue()…