_________________________________________________________________________________________________________
Function declaration
____________________________________________
A function declaration defines an identifier and associates it with a block of code. The block of code will return a result. The function can then be called inside an expression, or with a procedure statement, if extended syntax is on.
_________________________________________________________________________________________________________
Function declaration
____________________________________________
The result type of a function can be any previously declared type. contrary to Turbo Pascal, where only simple types could be returned. Note that functions can be generic, see section 8.5, page 494 for more details.
Just as procedures, functions can have hint directives (section 1.5, page 53):
function something : string; deprecated;