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# Smart Pointers
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<h1 id="スマートポインタ"><a class="header" href="#スマートポインタ">スマートポインタ</a></h1>
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A *pointer* is a general concept for a variable that contains an address in
memory. This address refers to, or “points at,” some other data. The most
common kind of pointer in Rust is a reference, which you learned about in
Chapter 4. References are indicated by the `&` symbol and borrow the value they
point to. They don’t have any spe