Provide the function/module header in pseudocode or in C++ code for each of the following.  Include comments that describe the parameters and return values (if a value is returned).  Do no define the function, just give the header or prototype and comments.  Be sure to indicate if the parameters need to be passed by reference. a. Swaps two reals. b. Calculates and returns the sales tax given the price and the amount of the tax rate (both as reals). c. Returns the concatenation of two strings. d. Performs a search of a string for a character and returns true if the character is found and false otherwise.

Provide the function/module header in pseudocode or in C++ code for each of the following.  Include comments that describe the parameters and return values (if a value is returned).  Do no define the function, just give the header or prototype and comments.  Be sure to indicate if the parameters need to be passed by reference.

a. Swaps two reals.

b. Calculates and returns the sales tax given the price and the amount of the tax rate (both as reals).

c. Returns the concatenation of two strings.

d. Performs a search of a string for a character and returns true if the character is found and false otherwise.