Attached are the files that compose "LAB2A" main project.
-In "pre_to_post (prefixQ, postfixQ);" under [login to view URL], after a portion of an expression has been converted, it is to be treated as a single operand. Every operator will be associated with a boolean flag. The flag is initially off to signal that neither of the two operands corresponding to the given operator has been processed yet. When the first operand is processed, the flag is switched on. When the second operand is processed, the given operator may e immediately appended to the output string.
-include boolean function "is_operator", which receives a char and returns true if the char is an operator false if not
-Function "input" inputs a prefix expression of characters into prefexQ
-Function "output" outputs the postfix expression in postfixQ to the screen
-Non-scalar parameters including arrays should be passed using "const referrence" parameters for efficiency