A practical introduction to Pascal programming language - GIARA

Alternative constructions...[Precedent code]case ( int or char expression ) ofvalue1 :Instruction Block 1value2 :Instruction Block 2...valueN :Instruction Block Nend[Following code]......[Precedent code]case ( int or char expression ) ofvalue1 :Instruction Block 1value2 :Instruction Block 2...valueN :Instruction Block NelseInstruction Block Xend[Following code]...[Precedent code]❄Computing expression=value1=value2=valueN✛❄[Following code](a) Case-of clause[Precedent code]❄Computing expression✲✲✲Instruction Block 1Instruction Block 2 =value1=value2=valueN❄[Following code]✲✲✲✲Instruction Block NInstruction Block 1Instruction Block 2 Instruction Block NInstruction Block X(b) Case-of clause with else statementFigure 2.2: Schematic representation of the case-of-else constructions.21