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Use code-like formatting on code example #445

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Use code-like formatting on code example #445

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22 changes: 13 additions & 9 deletions _posts/2023-01-19-totw-218.md
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Expand Up @@ -102,20 +102,24 @@ a friend function template in their type named `SketchyDraw` with the
appropriate signature. the template overload above will use ADL to find the
`SketchyDraw` function. For example,

</pre>
<pre class="prettyprint lang-cpp code">
class Triangle {
public:
explicit Triangle(Point a, Point b, Point c) : a_(a), b_(b), c_(c) {}

template &lt;typename SC&gt; friend void SketchyDraw(SC& canvas, const Triangle&
triangle) { // Note: This is a template, even though the only type we ever
expect to be // passed in for `SC` is `sketchy::Canvas`. Using `sketchy::Canvas`
directly // works, but pulls in an extra dependency that may not be used by all
users // of `Triangle`. sketchy::Draw(canvas, sketchy::Line(triangle.a_,
triangle.b_)); sketchy::Draw(canvas, sketchy::Line(triangle.b_, triangle.c_));
sketchy::Draw(canvas, sketchy::Line(triangle.c_, triangle.a_)); }
template &lt;typename SC&gt; friend void SketchyDraw(SC& canvas, const Triangle&
triangle) { // Note: This is a template, even though the only type we ever expect to be
// passed in for `SC` is `sketchy::Canvas`. Using `sketchy::Canvas` directly
// works, but pulls in an extra dependency that may not be used by all users
// of `Triangle`.
sketchy::Draw(canvas, sketchy::Line(triangle.a_, triangle.b_));
sketchy::Draw(canvas, sketchy::Line(triangle.b_, triangle.c_));
sketchy::Draw(canvas, sketchy::Line(triangle.c_, triangle.a_));
}

private: Point a_, b_, c_; };
private:
Point a_, b_, c_;
};

// Usage:
void DrawTriangles(sketchy::Canvas& canvas, absl::Span&lt;const Triangle&gt; triangles) {
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