Initial data commit

Task/Short-circuit-evaluation/Modula-2/short-circuit-evaluation.mod2

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+MODULE ShortCircuit;
+FROM FormatString IMPORT FormatString;
+FROM Terminal IMPORT WriteString,WriteLn,ReadChar;
+
+PROCEDURE a(v : BOOLEAN) : BOOLEAN;
+VAR buf : ARRAY[0..63] OF CHAR;
+BEGIN
+    FormatString("    # Called function a(%b)\n", buf, v);
+    WriteString(buf);
+    RETURN v
+END a;
+
+PROCEDURE b(v : BOOLEAN) : BOOLEAN;
+VAR buf : ARRAY[0..63] OF CHAR;
+BEGIN
+    FormatString("    # Called function b(%b)\n", buf, v);
+    WriteString(buf);
+    RETURN v
+END b;
+
+PROCEDURE Print(x,y : BOOLEAN);
+VAR buf : ARRAY[0..63] OF CHAR;
+VAR temp : BOOLEAN;
+BEGIN
+    FormatString("a(%b) AND b(%b)\n", buf, x, y);
+    WriteString(buf);
+    temp := a(x) AND b(y);
+
+    FormatString("a(%b) OR b(%b)\n", buf, x, y);
+    WriteString(buf);
+    temp := a(x) OR b(y);
+
+    WriteLn;
+END Print;
+
+BEGIN
+    Print(FALSE,FALSE);
+    Print(FALSE,TRUE);
+    Print(TRUE,TRUE);
+    Print(TRUE,FALSE);
+    ReadChar
+END ShortCircuit.