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<title>Note on negative integer constants</title> |
<title>Note on negative integer constants</title> |
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<h1>Note on negative integer constants</h1> |
<h1>Note on negative integer constants</h1> |
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<p> |
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Using a negative integer constant may cause a problem like the following: For example, |
Using a negative integer constant may cause a problem like the following: For example, |
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<pre><code>for i -10 0</code></pre> |
<pre><code>for i -10 0</code></pre> |
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causes the syntax error, because the second parameter is regarded as "i-10" instead of "i". To avoid this problem, take one of the following solutions: |
causes the syntax error, because the second parameter is regarded as "i-10" instead of "i". To avoid this problem, take one of the following solutions: |
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<li>Put "0" before "-". |
<li>Put "0" before "-". |
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<pre><code>for i 0-10 0</code></pre> |
<pre><code>for i 0-10 0</code></pre> |
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<li>Assign the negative constant to a variable. |
<li>Assign the negative constant to a variable. |
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<pre><code>A = -10 |
<pre><code>A = -10 |
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for i A 0 |
for i A 0 |
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</code></pre> |
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