An algorithm is designed to log temperature data for a weather station. A section of the pseudocode is shown below:
1 SET readings TO [0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
2 SET index TO 0
3 SET limit TO 6
4
5 FUNCTION recordReading(pValue)
6 DECLARE written AS BOOLEAN
7 SET written TO False
8 IF (index < limit) THEN
9 SET readings[index] TO pValue
10 SET index TO index + 1
11 SET written TO True
12 END IF
13 RETURN written
14 END FUNCTION
State why recordReading is classified as a function rather than a procedure.
29 exam-style questions on Edexcel GCSE Computer Science Subprograms, covering Built-in and user-devised subprograms, Functions versus procedures, and Global and local variables. Each one has a worked solution and a mark scheme showing where the marks go.