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copied!<p>You need to remove the <code>;</code> in <code>#define INVALID_VALUE -999;</code>. See <a href="http://ideone.com/pnWam" rel="nofollow">the fixed code</a>.</p> <p>You could have worked towards this conclusion by understanding what the error message <code>expected ‘)’ before ‘;’ token</code> was telling you. It's telling you that it expected to find a <code>)</code> before the <code>;</code> token, but from inspecting the line alone you don't see a <code>;</code>. So maybe there's one in the definition of <code>INVALID_VALUE</code>? Look up at <code>#define INVALID_VALUE -999;</code> and there it is! Think it should be there, but not sure? So let's try remove it and see if it works. Success!</p> <p><a href="https://www.securecoding.cert.org/confluence/display/seccode/PRE11-C.+Do+not+conclude+macro+definitions+with+a+semicolon" rel="nofollow">This page</a> goes and explains why you shouldn't conclude a <code>#define</code> with a semicolon, even if it is needed in the use of the macro. It's good to learn as much as possible from your mistake so that you don't make it again. Quote:</p> <blockquote> <p>Macro definitions, regardless of whether they expand to a single or multiple statements should not conclude with a semicolon. If required, the semicolon should be included following the macro expansion. Inadvertently inserting a semicolon at the end of the macro definition can unexpectedly change the control flow of the program.</p> <p>Another way to avoid this problem is to prefer inline or static functions over function-like macros.</p> <p>In general, the programmer should ensure that there is no semicolon at the end of a macro definition. The responsibility for having a semicolon where needed during the use of such a macro should be delegated to the person invoking the macro.</p> </blockquote>

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