14 lines
678 B
HTML
14 lines
678 B
HTML
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<p>
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Const is a way to mark data as constant or in other words read only.
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This way, if you try for example to write to a variable, the compiler warns you about it.
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So essintualy the compiler helps you find bugs. But it is more than that.
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It gives you confidence, that, when you pass pointers to a function (more on that later),
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the data wont be changed afterwards.
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</p>
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<p>
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Your task is to first declare the variable pi as constant, since pi should never change and execute.
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Then read the error message and correct the mistake.
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This may seem silly with so few lines of code, but when you have 1000 of lines of code, it
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get harder to find errors like this.
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</p>
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