<p></p>
<blockquote>
<p>Maybe I just expect too much and such a real-time response about invalid code is not among the features of Geany?</p>
</blockquote>
<p>Correct. Geany only reports errors given to it by the compiler when the compiler is executed. It doesn't do like some IDEs where they highlight errors/warnings in real-time as you type.</p>

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