result | statement |
Syntax | A resultStatement is:
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Description | A result statement, which must appear only in a function, is used to provide the value of the function.
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Example | This function doubles its parameter.
function double ( x : real ) : real result 2 * x end double put double ( 5.3 ) % This outputs 10.6 | |||||||||
Example | This function finds the position of a name in a list.
function find ( a : array 1 .. 100 of string ) : int for i : 1 .. 100 if a ( i ) = name then result i end if end for end find | |||||||||
Details | The execution of a result statement computes the value of the expression (expn) and terminates the function, returning the value as the value of the function. The expression must be assignable to the result type of the function, for example, in double, 2*x is assignable to real. (See the assignmentStatement for the definition of assignable.) A function must terminate by executing a result statement and not by reaching the end of the function.
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