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fn._r literal.html
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fn._r literal.html
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function
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<span>
Function
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<span class="namespace-dots">::</span>
<a class="function-name" href="#">_r literal</a>
</h1>
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<div class="overload">
<div class="function-signature"><div class="src rightside"><a href="https://github.com/chromium/subspace/blob/main/sus/ops/range_literals.h#L199">source</a></div><div class="template">template <::sus::ops::__private::RangeLiteralDeducer<false> D></div><span class="function-auto">auto</span> <a class="function-name" href="#">operator""_r</a>() -> auto</div>
</div>
</div>
<div class="description long">
<p>Constructs a <a href="sus-num-usize.html"><code>usize</code></a> range from a literal.</p>
<p>The constructed range satisfies the <a href="sus-ops-RangeBounds.html"><code>RangeBounds<usize></code></a>
concept. Because <code>usize</code> is unsigned, numbers may not be negative.</p>
<p>The syntax is a string (in double quotes) containing:</p>
<ul>
<li><code>start..end</code> for a range including start and excluding end. This returns a
<code>sus::ops::Range<usize></code>.</li>
<li><code>start..=end</code> for a range including start and including end. This returns
a <code>sus::ops::Range<usize></code>.</li>
<li><code>start..</code> for a range including start and never ending. This returns a
<code>sus::ops::RangeFrom<usize></code>.</li>
<li><code>..end</code> for a range including everything up end. This returns a
<code>sus::ops::RangeTo<usize></code>.</li>
<li><code>..=end</code> for a range including everything up and including end. This
returns a <code>sus::ops::RangeTo<usize></code>.</li>
<li><code>..</code> for a range that has no bounds at all. Typically for a slicing range
to indicate the entire slice. This returns a <code>sus::ops::RangeFull<usize></code>.</li>
</ul>
<h1><a name="examples" href="#examples">Examples</a></h1>
<pre><code>sus_check<span class="punct">(</span><span class="string">"1..4"</span>_r<span class="punct">)</span><span class="punct">.</span>start <span class="punct">=</span><span class="punct">=</span> 1u<span class="punct">)</span><span class="punct">;</span>
sus_check<span class="punct">(</span><span class="punct">(</span><span class="string">"1..4"</span>_r<span class="punct">)</span><span class="punct">.</span>finish <span class="punct">=</span><span class="punct">=</span> 4u<span class="punct">)</span><span class="punct">;</span>
sus_check<span class="punct">(</span><span class="punct">(</span><span class="string">"1..=4"</span>_r<span class="punct">)</span><span class="punct">.</span>finish <span class="punct">=</span><span class="punct">=</span> 5u<span class="punct">)</span><span class="punct">;</span>
</code></pre>
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