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<title>Review of Error Handling Frameworks - Boost.Outcome documentation</title>
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<div class="titlepage"><div><div><h1 style="clear: both">Review of Error Handling Frameworks</h1></div></div></div>
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<p>Outcome <a href="./history.html">started life in 2014</a>, entered Boost as Boost.Outcome in 2018, and therefore was amongst the very first of the major alternative error handling frameworks to standard exception throws in C++. Since then, and sometimes in reaction to Outcome’s choice of design, alternative frameworks have appeared. This page tries to give a fairly even handed summary of those alternatives, and how they compare to Outcome in this author’s opinion.</p>
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<p>These are listed in order of approximate availability to the C++ ecosystem i.e. in order of appearance.</p>
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<ol class="children children-li"><li>
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<a href="./alternatives/exceptions.html" >std exception throws</a>
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<p>Advantages and disadvantages of C++ exception throws</p><li>
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<a href="./alternatives/error_code.html" >std error codes</a>
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<p>Advantages and disadvantages of <code>std::error_code</code></p><li>
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<a href="./alternatives/expected.html" >std expected</a>
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<p>Advantages and disadvantages of <code>std::expected<T, E></code></p><li>
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<a href="./alternatives/outcome.html" >Outcome (proposed std result)</a>
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<p>Advantages and disadvantages of Outcome and its proposed <code>std::result<T></code></p><li>
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<a href="./alternatives/leaf.html" >LEAF</a>
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<p>Advantages and disadvantages of Lightweight Error Augmentation Framework</p></li></ol>
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<p>My thanks to Emil Dotchevski for reviewing this summary and providing notes.</p>
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</div><p><small>Last revised: January 10, 2022 at 14:29:13 UTC</small></p>
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