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Fix typo in ch.19 #1165

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Fix typo in ch.19 #1165

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2 changes: 1 addition & 1 deletion book/strings.md
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Expand Up @@ -109,7 +109,7 @@ Like a tagged union, each Obj starts with a tag field that identifies what kind
of object it is -- string, instance, etc. Following that are the payload fields.
Instead of a union with cases for each type, each type is its own separate
struct. The tricky part is how to treat these structs uniformly since C has no
concept of inheritance or polymorphism. I'll explain that soon, but first lets
concept of inheritance or polymorphism. I'll explain that soon, but first let's
get the preliminary stuff out of the way.

The name "Obj" itself refers to a struct that contains the state shared across
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2 changes: 1 addition & 1 deletion site/strings.html
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Expand Up @@ -206,7 +206,7 @@ <h2><a href="#struct-inheritance" id="struct-inheritance"><small>19&#8202;.&#820
of object it is<span class="em">&mdash;</span>string, instance, etc. Following that are the payload fields.
Instead of a union with cases for each type, each type is its own separate
struct. The tricky part is how to treat these structs uniformly since C has no
concept of inheritance or polymorphism. I&rsquo;ll explain that soon, but first lets
concept of inheritance or polymorphism. I&rsquo;ll explain that soon, but first let&rsquo;s
get the preliminary stuff out of the way.</p>
<p>The name &ldquo;Obj&rdquo; itself refers to a struct that contains the state shared across
all object types. It&rsquo;s sort of like the &ldquo;base class&rdquo; for objects. Because of
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