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<ol class="chapter"><li class="chapter-item expanded "><a href="intro.html"><strong aria-hidden="true">1.</strong> Introduction</a></li><li class="chapter-item expanded "><a href="CONTRIBUTING.html"><strong aria-hidden="true">2.</strong> Contributing</a></li><li class="chapter-item expanded "><a href="idioms/index.html"><strong aria-hidden="true">3.</strong> Idioms</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="idioms/coercion-arguments.html"><strong aria-hidden="true">3.1.</strong> Use borrowed types for arguments</a></li><li class="chapter-item expanded "><a href="idioms/concat-format.html"><strong aria-hidden="true">3.2.</strong> Concatenating Strings with format!</a></li><li class="chapter-item expanded "><a href="idioms/ctor.html"><strong aria-hidden="true">3.3.</strong> Constructor</a></li><li class="chapter-item expanded "><a href="idioms/default.html"><strong aria-hidden="true">3.4.</strong> The Default Trait</a></li><li class="chapter-item expanded "><a href="idioms/deref.html"><strong aria-hidden="true">3.5.</strong> Collections Are Smart Pointers</a></li><li class="chapter-item expanded "><a href="idioms/dtor-finally.html"><strong aria-hidden="true">3.6.</strong> Finalisation in Destructors</a></li><li class="chapter-item expanded "><a href="idioms/mem-replace.html"><strong aria-hidden="true">3.7.</strong> mem::replace(_)</a></li><li class="chapter-item expanded "><a href="idioms/on-stack-dyn-dispatch.html"><strong aria-hidden="true">3.8.</strong> On-Stack Dynamic Dispatch</a></li><li class="chapter-item expanded "><a href="idioms/ffi-intro.html"><strong aria-hidden="true">3.9.</strong> Foreign function interface usage</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="idioms/ffi-errors.html"><strong aria-hidden="true">3.9.1.</strong> Idiomatic Errors</a></li><li class="chapter-item expanded "><a href="idioms/ffi-accepting-strings.html"><strong aria-hidden="true">3.9.2.</strong> Accepting Strings</a></li><li class="chapter-item expanded "><a href="idioms/ffi-passing-strings.html"><strong aria-hidden="true">3.9.3.</strong> Passing Strings</a></li></ol></li><li class="chapter-item expanded "><a href="idioms/option-iter.html"><strong aria-hidden="true">3.10.</strong> Iterating over an Option</a></li><li class="chapter-item expanded "><a href="idioms/pass-var-to-closure.html"><strong aria-hidden="true">3.11.</strong> Pass Variables to Closure</a></li><li class="chapter-item expanded "><a href="idioms/priv-extend.html"><strong aria-hidden="true">3.12.</strong> Privacy For Extensibility</a></li><li class="chapter-item expanded "><a href="idioms/rustdoc-init.html"><strong aria-hidden="true">3.13.</strong> Easy doc initialization</a></li><li class="chapter-item expanded "><a href="idioms/temporary-mutability.html"><strong aria-hidden="true">3.14.</strong> Temporary mutability</a></li></ol></li><li class="chapter-item expanded "><a href="patterns/index.html"><strong aria-hidden="true">4.</strong> Design Patterns</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="patterns/builder.html"><strong aria-hidden="true">4.1.</strong> Builder</a></li><li class="chapter-item expanded "><a href="patterns/compose-structs.html"><strong aria-hidden="true">4.2.</strong> Compose Structs</a></li><li class="chapter-item expanded "><a href="patterns/entry.html"><strong aria-hidden="true">4.3.</strong> Entry API</a></li><li class="chapter-item expanded "><a href="patterns/ffi-intro.html"><strong aria-hidden="true">4.4.</strong> Foreign function interface usage</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="patterns/ffi-export.html"><strong aria-hidden="true">4.4.1.</strong> Object-Based APIs</a></li><li class="chapter-item expanded "><a href="patterns/ffi-wrappers.html"><strong aria-hidden="true">4.4.2.</strong> Type Consolidation into Wrappers</a></li></ol></li><li class="chapter-item expanded "><a href="patterns/fold.html"><strong aria-hidden="true">4.5.</strong> Fold</a></li><li class="chapter-item expanded "><a h
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