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Merge pull request #291 from franzpoeschel/namespace-versioning
Use an inline namespace to distinguish emitted symbols by version numbers e4051f77d7
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ToruNiina
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<!doctype html><html lang=ja dir=ltr><head><meta charset=UTF-8><meta name=viewport content="width=device-width,initial-scale=1"><meta name=description content="
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result.hpp
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#
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result.hppは、成功値か失敗値かのどちらかを持つresult型を定義します。
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これは、例外を投げないtoml::try_parseの返り値として使用されます。
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success
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#
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成功値を持つ型です。
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namespace toml
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{
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template<typename T>
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struct success
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{
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using value_type = T;
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explicit success(value_type v);
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~success() = default;
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success(const success&) = default;
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success(success&&) = default;
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success& operator=(const success&) = default;
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success& operator=(success&&) = default;
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template<typename U>
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explicit success(U&& v);
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template<typename U>
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explicit success(success<U> v);
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value_type& get() noexcept;
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value_type const& get() const noexcept;
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};
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template<typename T>
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success<typename std::decay<T>::type> ok(T&& v);
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template<std::size_t N>
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success<std::string> ok(const char (&literal)[N])
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}
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メンバ型
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#
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using value_type = T;
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成功値の型です。"><meta name=theme-color media="(prefers-color-scheme: light)" content="#ffffff"><meta name=theme-color media="(prefers-color-scheme: dark)" content="#343a40"><meta name=color-scheme content="light dark"><meta property="og:url" content="https://toruniina.github.io/toml11/ja/docs/reference/result/"><meta property="og:site_name" content="toml11"><meta property="og:title" content="result.hpp"><meta property="og:description" content="result.hpp # result.hppは、成功値か失敗値かのどちらかを持つresult型を定義します。
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これは、例外を投げないtoml::try_parseの返り値として使用されます。
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success # 成功値を持つ型です。
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namespace toml { template<typename T> struct success { using value_type = T; explicit success(value_type v); ~success() = default; success(const success&) = default; success(success&&) = default; success& operator=(const success&) = default; success& operator=(success&&) = default; template<typename U> explicit success(U&& v); template<typename U> explicit success(success<U> v); value_type& get() noexcept; value_type const& get() const noexcept; }; template<typename T> success<typename std::decay<T>::type> ok(T&& v); template<std::size_t N> success<std::string> ok(const char (&literal)[N]) } メンバ型 # using value_type = T; 成功値の型です。"><meta property="og:locale" content="ja"><meta property="og:type" content="article"><meta property="article:section" content="docs"><title>result.hpp | toml11</title>
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<link rel=manifest href=/toml11/manifest.json><link rel=icon href=/toml11/favicon.png><link rel=canonical href=https://toruniina.github.io/toml11/ja/docs/reference/result/><link rel=alternate hreflang=en href=https://toruniina.github.io/toml11/docs/reference/result/ title=result.hpp><link rel=stylesheet href=/toml11/book.min.ddac3efe7ea4c1007ff53e5a8fd67f12517e5d2e99984d8c67a18668f7ecaa03.css integrity="sha256-3aw+/n6kwQB/9T5aj9Z/ElF+XS6ZmE2MZ6GGaPfsqgM=" crossorigin=anonymous><script defer src=/toml11/fuse.min.js></script><script defer src=/toml11/ja.search.min.13aefbf6a803b591c02d5bc9a01dfe65fe37c31e2915c91573708d38e805d86c.js integrity="sha256-E6779qgDtZHALVvJoB3+Zf43wx4pFckVc3CNOOgF2Gw=" crossorigin=anonymous></script></head><body dir=ltr><input type=checkbox class="hidden toggle" id=menu-control>
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<input type=checkbox class="hidden toggle" id=toc-control><main class="container flex"><aside class=book-menu><div class=book-menu-content><nav><h2 class=book-brand><a class="flex align-center" href=/toml11/ja/><span>toml11</span></a></h2><div class="book-search hidden"><input type=text id=book-search-input placeholder=検索 aria-label=検索 maxlength=64 data-hotkeys=s/><div class="book-search-spinner hidden"></div><ul id=book-search-results></ul></div><script>document.querySelector(".book-search").classList.remove("hidden")</script><ul class=book-languages><li><input type=checkbox id=languages class=toggle>
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<label for=languages class="flex justify-between"><a role=button class="flex align-center"><img src=/toml11/svg/translate.svg class=book-icon alt=Languages>
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日本語</a></label><ul><li><a href=https://toruniina.github.io/toml11/docs/reference/result/>English</a></li></ul></li></ul><ul><li><a href=/toml11/ja/docs/installation/>installation</a><ul></ul></li><li><input type=checkbox id=section-b4cfb5b55e913a8d853eacf5e8fba05f class=toggle>
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<label for=section-b4cfb5b55e913a8d853eacf5e8fba05f class="flex justify-between"><a href=/toml11/ja/docs/features/>features</a></label><ul><li><a href=/toml11/ja/docs/features/parsing_files/>parsing files</a></li><li><a href=/toml11/ja/docs/features/value/>getting values</a></li><li><a href=/toml11/ja/docs/features/error_message/>error message</a></li><li><a href=/toml11/ja/docs/features/serialize/>serializing values</a></li><li><a href=/toml11/ja/docs/features/configure_types/>configuring types</a></li><li><a href=/toml11/ja/docs/features/literal/>toml literal</a></li><li><a href=/toml11/ja/docs/features/toml_spec/>toml spec</a></li><li><a href=/toml11/ja/docs/features/extension/>extension</a></li></ul></li><li><input type=checkbox id=section-01b096afc5186aea96713b408b47c967 class=toggle checked>
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<label for=section-01b096afc5186aea96713b408b47c967 class="flex justify-between"><a href=/toml11/ja/docs/reference/>reference</a></label><ul><li><a href=/toml11/ja/docs/reference/color/>color.hpp</a></li><li><a href=/toml11/ja/docs/reference/comments/>comments.hpp</a></li><li><a href=/toml11/ja/docs/reference/conversion/>conversion.hpp</a></li><li><a href=/toml11/ja/docs/reference/datetime/>datetime.hpp</a></li><li><a href=/toml11/ja/docs/reference/error_info/>error_info.hpp</a></li><li><a href=/toml11/ja/docs/reference/exception/>exception.hpp</a></li><li><a href=/toml11/ja/docs/reference/find/>find.hpp</a></li><li><a href=/toml11/ja/docs/reference/format/>format.hpp</a></li><li><a href=/toml11/ja/docs/reference/from/>from.hpp</a></li><li><a href=/toml11/ja/docs/reference/get/>get.hpp</a></li><li><a href=/toml11/ja/docs/reference/into/>into.hpp</a></li><li><a href=/toml11/ja/docs/reference/literal/>literal.hpp</a></li><li><a href=/toml11/ja/docs/reference/ordered_map/>ordered_map.hpp</a></li><li><a href=/toml11/ja/docs/reference/parser/>parser.hpp</a></li><li><a href=/toml11/ja/docs/reference/result/ class=active>result.hpp</a></li><li><a href=/toml11/ja/docs/reference/serializer/>serializer.hpp</a></li><li><a href=/toml11/ja/docs/reference/source_location/>source_location.hpp</a></li><li><a href=/toml11/ja/docs/reference/spec/>spec.hpp</a></li><li><a href=/toml11/ja/docs/reference/toml_fwd/>toml_fwd.hpp</a></li><li><a href=/toml11/ja/docs/reference/toml/>toml.hpp</a></li><li><a href=/toml11/ja/docs/reference/types/>types.hpp</a></li><li><a href=/toml11/ja/docs/reference/value_t/>value_t.hpp</a></li><li><a href=/toml11/ja/docs/reference/value/>value.hpp</a></li><li><a href=/toml11/ja/docs/reference/version/>version.hpp</a></li><li><a href=/toml11/ja/docs/reference/visit/>visit.hpp</a></li></ul></li><li><a href=/toml11/ja/docs/changelog/>changelog</a><ul></ul></li></ul><ul><li><a href=https://github.com/ToruNiina/toml11 target=_blank rel=noopener>GitHub</a></li></ul></nav><script>(function(){var e=document.querySelector("aside .book-menu-content");addEventListener("beforeunload",function(){localStorage.setItem("menu.scrollTop",e.scrollTop)}),e.scrollTop=localStorage.getItem("menu.scrollTop")})()</script></div></aside><div class=book-page><header class=book-header><div class="flex align-center justify-between"><label for=menu-control><img src=/toml11/svg/menu.svg class=book-icon alt=Menu>
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</label><strong>result.hpp</strong>
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<label for=toc-control><img src=/toml11/svg/toc.svg class=book-icon alt="Table of Contents"></label></div><aside class="hidden clearfix"><nav id=TableOfContents><ul><li><a href=#resulthpp>result.hpp</a></li><li><a href=#success>success</a><ul><li><a href=#メンバ型>メンバ型</a></li><li><a href=#メンバ関数>メンバ関数</a><ul><li><a href=#コンストラクタ>コンストラクタ</a></li><li><a href=#get><code>get()</code></a></li></ul></li><li><a href=#非メンバ関数>非メンバ関数</a><ul><li><a href=#okt><code>ok(T)</code></a></li></ul></li></ul></li><li><a href=#successreference_wrappert><code>success<reference_wrapper<T>></code></a><ul><li><a href=#メンバ型-1>メンバ型</a><ul><li><a href=#get-1><code>get()</code></a></li></ul></li></ul></li><li><a href=#failure>failure</a><ul><li><a href=#メンバ型-2>メンバ型</a></li><li><a href=#メンバ関数-1>メンバ関数</a><ul><li><a href=#コンストラクタ-1>コンストラクタ</a></li><li><a href=#get-2><code>get()</code></a></li></ul></li><li><a href=#非メンバ関数-1>非メンバ関数</a><ul><li><a href=#errt><code>err(T)</code></a></li></ul></li></ul></li><li><a href=#failurereference_wrappert><code>failure<reference_wrapper<T>></code></a><ul><li><a href=#メンバ型-3>メンバ型</a><ul><li><a href=#get-3><code>get()</code></a></li></ul></li></ul></li><li><a href=#result>result</a><ul><li><a href=#メンバ型-4>メンバ型</a><ul><li><a href=#success_type><code>success_type</code></a></li><li><a href=#failure_type><code>failure_type</code></a></li><li><a href=#value_type><code>value_type</code></a></li><li><a href=#error_type><code>error_type</code></a></li></ul></li><li><a href=#メンバ関数-2>メンバ関数</a><ul><li><a href=#コンストラクタ-2>コンストラクタ</a></li><li><a href=#コピームーブコンストラクタ>コピー・ムーブコンストラクタ</a></li><li><a href=#operator><code>operator=</code></a></li><li><a href=#is_ok><code>is_ok()</code></a></li><li><a href=#is_err><code>is_err()</code></a></li><li><a href=#operator-bool><code>operator bool()</code></a></li><li><a href=#unwrap><code>unwrap()</code></a></li><li><a href=#unwrap_or><code>unwrap_or()</code></a></li><li><a href=#unwrap_err><code>unwrap_err()</code></a></li><li><a href=#as_ok><code>as_ok()</code></a></li><li><a href=#as_err><code>as_err()</code></a></li></ul></li></ul></li><li><a href=#bad_result_access>bad_result_access</a></li></ul></nav></aside></header><article class="markdown book-article"><h1 id=resulthpp>result.hpp
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<a class=anchor href=#resulthpp>#</a></h1><p><code>result.hpp</code>は、成功値か失敗値かのどちらかを持つ<code>result</code>型を定義します。</p><p>これは、例外を投げない<code>toml::try_parse</code>の返り値として使用されます。</p><h1 id=success>success
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<a class=anchor href=#success>#</a></h1><p>成功値を持つ型です。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>namespace</span> toml
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</span></span><span style=display:flex><span>{
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</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> T<span style=color:#f92672>></span>
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</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>success</span>
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</span></span><span style=display:flex><span>{
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</span></span><span style=display:flex><span> <span style=color:#66d9ef>using</span> value_type <span style=color:#f92672>=</span> T;
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</span></span><span style=display:flex><span>
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</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> <span style=color:#a6e22e>success</span>(value_type v);
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</span></span><span style=display:flex><span>
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</span></span><span style=display:flex><span> <span style=color:#f92672>~</span>success() <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
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</span></span><span style=display:flex><span> success(<span style=color:#66d9ef>const</span> success<span style=color:#f92672>&</span>) <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
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</span></span><span style=display:flex><span> success(success<span style=color:#f92672>&&</span>) <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
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</span></span><span style=display:flex><span> success<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(<span style=color:#66d9ef>const</span> success<span style=color:#f92672>&</span>) <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
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</span></span><span style=display:flex><span> success<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(success<span style=color:#f92672>&&</span>) <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
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</span></span><span style=display:flex><span>
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</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
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</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> success(U<span style=color:#f92672>&&</span> v);
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</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
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</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> success(success<span style=color:#f92672><</span>U<span style=color:#f92672>></span> v);
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</span></span><span style=display:flex><span>
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</span></span><span style=display:flex><span> value_type<span style=color:#f92672>&</span> get() <span style=color:#66d9ef>noexcept</span>;
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</span></span><span style=display:flex><span> value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> get() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
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</span></span><span style=display:flex><span>};
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</span></span><span style=display:flex><span>
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</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> T<span style=color:#f92672>></span>
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</span></span><span style=display:flex><span>success<span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> std<span style=color:#f92672>::</span>decay<span style=color:#f92672><</span>T<span style=color:#f92672>>::</span>type<span style=color:#f92672>></span> ok(T<span style=color:#f92672>&&</span> v);
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</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span>std<span style=color:#f92672>::</span>size_t N<span style=color:#f92672>></span>
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</span></span><span style=display:flex><span>success<span style=color:#f92672><</span>std<span style=color:#f92672>::</span>string<span style=color:#f92672>></span> ok(<span style=color:#66d9ef>const</span> <span style=color:#66d9ef>char</span> (<span style=color:#f92672>&</span>literal)[N])
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</span></span><span style=display:flex><span>}
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</span></span></code></pre></div><h2 id=メンバ型>メンバ型
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<a class=anchor href=#%e3%83%a1%e3%83%b3%e3%83%90%e5%9e%8b>#</a></h2><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>using</span> value_type <span style=color:#f92672>=</span> T;
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</span></span></code></pre></div><p>成功値の型です。</p><h2 id=メンバ関数>メンバ関数
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<a class=anchor href=#%e3%83%a1%e3%83%b3%e3%83%90%e9%96%a2%e6%95%b0>#</a></h2><h3 id=コンストラクタ>コンストラクタ
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<a class=anchor href=#%e3%82%b3%e3%83%b3%e3%82%b9%e3%83%88%e3%83%a9%e3%82%af%e3%82%bf>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>explicit</span> <span style=color:#a6e22e>success</span>(value_type v);
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||||
</span></span></code></pre></div><p><code>value_type</code>を受け取って構築します。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
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||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>explicit</span> success(U<span style=color:#f92672>&&</span> v);
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||||
</span></span></code></pre></div><p><code>value_type</code>に変換可能な他の型を受け取って構築します。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>explicit</span> success(success<span style=color:#f92672><</span>U<span style=color:#f92672>></span> v);
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||||
</span></span></code></pre></div><p><code>value_type</code>に変換可能な他の型を持つ<code>success</code>型を受け取って構築します。</p><h3 id=get><code>get()</code>
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||||
<a class=anchor href=#get>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>value_type<span style=color:#f92672>&</span> get() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> get() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span></code></pre></div><p>値にアクセスします。</p><h2 id=非メンバ関数>非メンバ関数
|
||||
<a class=anchor href=#%e9%9d%9e%e3%83%a1%e3%83%b3%e3%83%90%e9%96%a2%e6%95%b0>#</a></h2><h3 id=okt><code>ok(T)</code>
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||||
<a class=anchor href=#okt>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> T<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>success<span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> std<span style=color:#f92672>::</span>decay<span style=color:#f92672><</span>T<span style=color:#f92672>>::</span>type<span style=color:#f92672>></span> ok(T<span style=color:#f92672>&&</span> v);
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span>std<span style=color:#f92672>::</span>size_t N<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>success<span style=color:#f92672><</span>std<span style=color:#f92672>::</span>string<span style=color:#f92672>></span> ok(<span style=color:#66d9ef>const</span> <span style=color:#66d9ef>char</span> (<span style=color:#f92672>&</span>literal)[N])
|
||||
</span></span></code></pre></div><p>成功値から<code>success</code>型を構築して返します。</p><p>文字列リテラルを与えた場合は、<code>std::string</code>にして返します。</p><h1 id=successreference_wrappert><code>success<reference_wrapper<T>></code>
|
||||
<a class=anchor href=#successreference_wrappert>#</a></h1><p><code>success</code>の特殊化。成功値が参照であるときに使用されます。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>namespace</span> toml
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> T<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>success</span><span style=color:#f92672><</span>std<span style=color:#f92672>::</span>reference_wrapper<span style=color:#f92672><</span>T<span style=color:#f92672>>></span>
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>using</span> value_type <span style=color:#f92672>=</span> T;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> <span style=color:#a6e22e>success</span>(std<span style=color:#f92672>::</span>reference_wrapper<span style=color:#f92672><</span>value_type<span style=color:#f92672>></span> v) <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> value_type<span style=color:#f92672>&</span> get() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span> value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> get() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>};
|
||||
</span></span><span style=display:flex><span>}
|
||||
</span></span></code></pre></div><h2 id=メンバ型-1>メンバ型
|
||||
<a class=anchor href=#%e3%83%a1%e3%83%b3%e3%83%90%e5%9e%8b-1>#</a></h2><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>using</span> value_type <span style=color:#f92672>=</span> T;
|
||||
</span></span></code></pre></div><p>成功値の型です。参照ではなく、<code>std::reference_wrapper<T></code>の<code>T</code>です。</p><h3 id=get-1><code>get()</code>
|
||||
<a class=anchor href=#get-1>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>value_type<span style=color:#f92672>&</span> get() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> get() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span></code></pre></div><p>値にアクセスします。</p><h1 id=failure>failure
|
||||
<a class=anchor href=#failure>#</a></h1><p>失敗値を持つ型です。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>namespace</span> toml
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> T<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>failure</span>
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>using</span> value_type <span style=color:#f92672>=</span> T;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> <span style=color:#a6e22e>failure</span>(value_type v);
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#f92672>~</span>failure() <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
|
||||
</span></span><span style=display:flex><span> failure(<span style=color:#66d9ef>const</span> failure<span style=color:#f92672>&</span>) <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
|
||||
</span></span><span style=display:flex><span> failure(failure<span style=color:#f92672>&&</span>) <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
|
||||
</span></span><span style=display:flex><span> failure<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(<span style=color:#66d9ef>const</span> failure<span style=color:#f92672>&</span>) <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
|
||||
</span></span><span style=display:flex><span> failure<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(failure<span style=color:#f92672>&&</span>) <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> failure(U<span style=color:#f92672>&&</span> v);
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> failure(failure<span style=color:#f92672><</span>U<span style=color:#f92672>></span> v);
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> value_type<span style=color:#f92672>&</span> get() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span> value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> get() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>};
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> T<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>failure<span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> std<span style=color:#f92672>::</span>decay<span style=color:#f92672><</span>T<span style=color:#f92672>>::</span>type<span style=color:#f92672>></span> err(T<span style=color:#f92672>&&</span> v);
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span>std<span style=color:#f92672>::</span>size_t N<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>failure<span style=color:#f92672><</span>std<span style=color:#f92672>::</span>string<span style=color:#f92672>></span> err(<span style=color:#66d9ef>const</span> <span style=color:#66d9ef>char</span> (<span style=color:#f92672>&</span>literal)[N]);
|
||||
</span></span><span style=display:flex><span>}
|
||||
</span></span></code></pre></div><h2 id=メンバ型-2>メンバ型
|
||||
<a class=anchor href=#%e3%83%a1%e3%83%b3%e3%83%90%e5%9e%8b-2>#</a></h2><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>using</span> value_type <span style=color:#f92672>=</span> T;
|
||||
</span></span></code></pre></div><p>失敗値の型です。</p><h2 id=メンバ関数-1>メンバ関数
|
||||
<a class=anchor href=#%e3%83%a1%e3%83%b3%e3%83%90%e9%96%a2%e6%95%b0-1>#</a></h2><h3 id=コンストラクタ-1>コンストラクタ
|
||||
<a class=anchor href=#%e3%82%b3%e3%83%b3%e3%82%b9%e3%83%88%e3%83%a9%e3%82%af%e3%82%bf-1>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>explicit</span> <span style=color:#a6e22e>failure</span>(value_type v);
|
||||
</span></span></code></pre></div><p><code>value_type</code>を受け取って構築します。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>explicit</span> failure(U<span style=color:#f92672>&&</span> v);
|
||||
</span></span></code></pre></div><p><code>value_type</code>に変換可能な他の型を受け取って構築します。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>explicit</span> failure(failure<span style=color:#f92672><</span>U<span style=color:#f92672>></span> v);
|
||||
</span></span></code></pre></div><p><code>value_type</code>に変換可能な他の型を持つ<code>failure</code>型を受け取って構築します。</p><h3 id=get-2><code>get()</code>
|
||||
<a class=anchor href=#get-2>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>value_type<span style=color:#f92672>&</span> get() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> get() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span></code></pre></div><p>値にアクセスします。</p><h2 id=非メンバ関数-1>非メンバ関数
|
||||
<a class=anchor href=#%e9%9d%9e%e3%83%a1%e3%83%b3%e3%83%90%e9%96%a2%e6%95%b0-1>#</a></h2><h3 id=errt><code>err(T)</code>
|
||||
<a class=anchor href=#errt>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> T<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>failure<span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> std<span style=color:#f92672>::</span>decay<span style=color:#f92672><</span>T<span style=color:#f92672>>::</span>type<span style=color:#f92672>></span> err(T<span style=color:#f92672>&&</span> v);
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span>std<span style=color:#f92672>::</span>size_t N<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>failure<span style=color:#f92672><</span>std<span style=color:#f92672>::</span>string<span style=color:#f92672>></span> err(<span style=color:#66d9ef>const</span> <span style=color:#66d9ef>char</span> (<span style=color:#f92672>&</span>literal)[N]);
|
||||
</span></span></code></pre></div><p>失敗値から<code>failure</code>型を構築して返します。</p><p>文字列リテラルを与えた場合は、<code>std::string</code>にして返します。</p><h1 id=failurereference_wrappert><code>failure<reference_wrapper<T>></code>
|
||||
<a class=anchor href=#failurereference_wrappert>#</a></h1><p><code>failure</code>の特殊化。失敗値が参照であるときに使用されます。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>namespace</span> toml
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> T<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>failure</span><span style=color:#f92672><</span>std<span style=color:#f92672>::</span>reference_wrapper<span style=color:#f92672><</span>T<span style=color:#f92672>>></span>
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>using</span> value_type <span style=color:#f92672>=</span> T;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> <span style=color:#a6e22e>failure</span>(std<span style=color:#f92672>::</span>reference_wrapper<span style=color:#f92672><</span>value_type<span style=color:#f92672>></span> v) <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> value_type<span style=color:#f92672>&</span> get() <span style=color:#66d9ef>noexcept</span> {<span style=color:#66d9ef>return</span> value.get();}
|
||||
</span></span><span style=display:flex><span> value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> get() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span> {<span style=color:#66d9ef>return</span> value.get();}
|
||||
</span></span><span style=display:flex><span>};
|
||||
</span></span><span style=display:flex><span>}
|
||||
</span></span></code></pre></div><h2 id=メンバ型-3>メンバ型
|
||||
<a class=anchor href=#%e3%83%a1%e3%83%b3%e3%83%90%e5%9e%8b-3>#</a></h2><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>using</span> value_type <span style=color:#f92672>=</span> T;
|
||||
</span></span></code></pre></div><p>失敗値の型です。参照ではなく、<code>std::reference_wrapper<T></code>の<code>T</code>です。</p><h3 id=get-3><code>get()</code>
|
||||
<a class=anchor href=#get-3>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>value_type<span style=color:#f92672>&</span> get() <span style=color:#66d9ef>noexcept</span>
|
||||
</span></span><span style=display:flex><span>value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> get() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>
|
||||
</span></span></code></pre></div><p>値にアクセスします。</p><h1 id=result>result
|
||||
<a class=anchor href=#result>#</a></h1><p>成功値か失敗値かのどちらかを持つ型です。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>namespace</span> toml
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> T, <span style=color:#66d9ef>typename</span> E<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>result</span>
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>using</span> success_type <span style=color:#f92672>=</span> success<span style=color:#f92672><</span>T<span style=color:#f92672>></span>;
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>using</span> failure_type <span style=color:#f92672>=</span> failure<span style=color:#f92672><</span>E<span style=color:#f92672>></span>;
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>using</span> value_type <span style=color:#f92672>=</span> <span style=color:#66d9ef>typename</span> success_type<span style=color:#f92672>::</span>value_type;
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>using</span> error_type <span style=color:#f92672>=</span> <span style=color:#66d9ef>typename</span> failure_type<span style=color:#f92672>::</span>value_type;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> result(success_type s);
|
||||
</span></span><span style=display:flex><span> result(failure_type f);
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span> result(success<span style=color:#f92672><</span>U<span style=color:#f92672>></span> s);
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span> result(failure<span style=color:#f92672><</span>U<span style=color:#f92672>></span> f);
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(success_type s);
|
||||
</span></span><span style=display:flex><span> result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(failure_type f);
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span> result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(success<span style=color:#f92672><</span>U<span style=color:#f92672>></span> s);
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span> result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(failure<span style=color:#f92672><</span>U<span style=color:#f92672>></span> f);
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#f92672>~</span>result() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> result(<span style=color:#66d9ef>const</span> result<span style=color:#f92672>&</span> other);
|
||||
</span></span><span style=display:flex><span> result(result<span style=color:#f92672>&&</span> other);
|
||||
</span></span><span style=display:flex><span> result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(<span style=color:#66d9ef>const</span> result<span style=color:#f92672>&</span> other);
|
||||
</span></span><span style=display:flex><span> result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(result<span style=color:#f92672>&&</span> other);
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U, <span style=color:#66d9ef>typename</span> F<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span> result(result<span style=color:#f92672><</span>U, F<span style=color:#f92672>></span> other);
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U, <span style=color:#66d9ef>typename</span> F<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span> result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(result<span style=color:#f92672><</span>U, F<span style=color:#f92672>></span> other);
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>bool</span> <span style=color:#a6e22e>is_ok</span>() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>bool</span> <span style=color:#a6e22e>is_err</span>() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> <span style=color:#66d9ef>operator</span> <span style=color:#a6e22e>bool</span>() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> value_type<span style=color:#f92672>&</span> unwrap(cxx<span style=color:#f92672>::</span>source_location loc <span style=color:#f92672>=</span> cxx<span style=color:#f92672>::</span>source_location<span style=color:#f92672>::</span>current());
|
||||
</span></span><span style=display:flex><span> value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> unwrap(cxx<span style=color:#f92672>::</span>source_location loc <span style=color:#f92672>=</span> cxx<span style=color:#f92672>::</span>source_location<span style=color:#f92672>::</span>current()) <span style=color:#66d9ef>const</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> value_type<span style=color:#f92672>&</span> unwrap_or(value_type<span style=color:#f92672>&</span> opt) <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span> value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> unwrap_or(value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> opt) <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> error_type<span style=color:#f92672>&</span> unwrap_err(cxx<span style=color:#f92672>::</span>source_location loc <span style=color:#f92672>=</span> cxx<span style=color:#f92672>::</span>source_location<span style=color:#f92672>::</span>current());
|
||||
</span></span><span style=display:flex><span> error_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> unwrap_err(cxx<span style=color:#f92672>::</span>source_location loc <span style=color:#f92672>=</span> cxx<span style=color:#f92672>::</span>source_location<span style=color:#f92672>::</span>current()) <span style=color:#66d9ef>const</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> value_type<span style=color:#f92672>&</span> as_ok() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span> value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> as_ok() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>
|
||||
</span></span><span style=display:flex><span> error_type<span style=color:#f92672>&</span> as_err() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span> error_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> as_err() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>};
|
||||
</span></span><span style=display:flex><span>}
|
||||
</span></span></code></pre></div><h2 id=メンバ型-4>メンバ型
|
||||
<a class=anchor href=#%e3%83%a1%e3%83%b3%e3%83%90%e5%9e%8b-4>#</a></h2><h3 id=success_type><code>success_type</code>
|
||||
<a class=anchor href=#success_type>#</a></h3><p><code>success<T></code>です。</p><h3 id=failure_type><code>failure_type</code>
|
||||
<a class=anchor href=#failure_type>#</a></h3><p><code>failure<E></code>です。</p><h3 id=value_type><code>value_type</code>
|
||||
<a class=anchor href=#value_type>#</a></h3><p>成功型<code>T</code>です。<code>success_type::value_type</code>のエイリアスです。</p><p>成功型<code>T</code>として<code>std::reference_wrapper<U></code>が渡された場合、その引数型の<code>U</code>になります。</p><h3 id=error_type><code>error_type</code>
|
||||
<a class=anchor href=#error_type>#</a></h3><p>失敗型<code>E</code>です。<code>failure_type::value_type</code>のエイリアスです。</p><p>失敗型<code>E</code>として<code>std::reference_wrapper<F></code>が渡された場合、その引数型の<code>F</code>になります。</p><h2 id=メンバ関数-2>メンバ関数
|
||||
<a class=anchor href=#%e3%83%a1%e3%83%b3%e3%83%90%e9%96%a2%e6%95%b0-2>#</a></h2><h3 id=コンストラクタ-2>コンストラクタ
|
||||
<a class=anchor href=#%e3%82%b3%e3%83%b3%e3%82%b9%e3%83%88%e3%83%a9%e3%82%af%e3%82%bf-2>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>result() <span style=color:#f92672>=</span> <span style=color:#66d9ef>delete</span>;
|
||||
</span></span></code></pre></div><p><code>result</code>型はデフォルトでは構築できません。
|
||||
成功型か失敗型を与える必要があります。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>result(success_type s);
|
||||
</span></span><span style=display:flex><span>result(failure_type f);
|
||||
</span></span></code></pre></div><p>成功型、失敗型を受け取って構築します。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>result(success<span style=color:#f92672><</span>U<span style=color:#f92672>></span> s);
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>result(failure<span style=color:#f92672><</span>U<span style=color:#f92672>></span> f);
|
||||
</span></span></code></pre></div><p><code>value_type</code>と<code>error_type</code>に変換可能な成功型、失敗型を受け取って構築します。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U, <span style=color:#66d9ef>typename</span> F<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>result(result<span style=color:#f92672><</span>U, F<span style=color:#f92672>></span> other);
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U, <span style=color:#66d9ef>typename</span> F<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(result<span style=color:#f92672><</span>U, F<span style=color:#f92672>></span> other);
|
||||
</span></span></code></pre></div><p>変換可能な成功型、失敗型を持つ<code>result</code>から構築します。</p><h3 id=コピームーブコンストラクタ>コピー・ムーブコンストラクタ
|
||||
<a class=anchor href=#%e3%82%b3%e3%83%94%e3%83%bc%e3%83%a0%e3%83%bc%e3%83%96%e3%82%b3%e3%83%b3%e3%82%b9%e3%83%88%e3%83%a9%e3%82%af%e3%82%bf>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>result(<span style=color:#66d9ef>const</span> result<span style=color:#f92672>&</span> other);
|
||||
</span></span><span style=display:flex><span>result(result<span style=color:#f92672>&&</span> other);
|
||||
</span></span></code></pre></div><p>コピー・ムーブ構築可能です。</p><h3 id=operator><code>operator=</code>
|
||||
<a class=anchor href=#operator>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(<span style=color:#66d9ef>const</span> result<span style=color:#f92672>&</span> other);
|
||||
</span></span><span style=display:flex><span>result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(result<span style=color:#f92672>&&</span> other);
|
||||
</span></span></code></pre></div><p>コピー・ムーブ代入可能です。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(success<span style=color:#f92672><</span>U<span style=color:#f92672>></span> s);
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> U<span style=color:#f92672>></span>
|
||||
</span></span><span style=display:flex><span>result<span style=color:#f92672>&</span> <span style=color:#66d9ef>operator</span><span style=color:#f92672>=</span>(failure<span style=color:#f92672><</span>U<span style=color:#f92672>></span> f);
|
||||
</span></span></code></pre></div><p>変換可能な型を持つ成功型、失敗型は代入可能です。</p><h3 id=is_ok><code>is_ok()</code>
|
||||
<a class=anchor href=#is_ok>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>bool</span> <span style=color:#a6e22e>is_ok</span>() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span></code></pre></div><p>成功値を持っている場合<code>true</code>を、そうでない場合<code>false</code>を返します。</p><h3 id=is_err><code>is_err()</code>
|
||||
<a class=anchor href=#is_err>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>bool</span> <span style=color:#a6e22e>is_err</span>() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span></code></pre></div><p>失敗値を持っている場合<code>true</code>を、そうでない場合<code>false</code>を返します。</p><h3 id=operator-bool><code>operator bool()</code>
|
||||
<a class=anchor href=#operator-bool>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>explicit</span> <span style=color:#66d9ef>operator</span> <span style=color:#a6e22e>bool</span>() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span></code></pre></div><p>成功値を持っている場合<code>true</code>を、そうでない場合<code>false</code>を返します。</p><h3 id=unwrap><code>unwrap()</code>
|
||||
<a class=anchor href=#unwrap>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>value_type<span style=color:#f92672>&</span> unwrap(cxx<span style=color:#f92672>::</span>source_location loc <span style=color:#f92672>=</span> cxx<span style=color:#f92672>::</span>source_location<span style=color:#f92672>::</span>current());
|
||||
</span></span><span style=display:flex><span>value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> unwrap(cxx<span style=color:#f92672>::</span>source_location loc <span style=color:#f92672>=</span> cxx<span style=color:#f92672>::</span>source_location<span style=color:#f92672>::</span>current()) <span style=color:#66d9ef>const</span>;
|
||||
</span></span></code></pre></div><p>成功値を取り出します。</p><p>成功値を持っていない場合、<code>toml::bad_result_access</code>が送出されます。</p><p><code>std::source_location</code>または<code>std::experimental::source_location</code>が利用可能か、
|
||||
あるいはコンパイラ拡張によって同等の情報が利用可能な場合、<code>what()</code>文字列に
|
||||
<code>unwrap()</code>が発生したソースコードのファイル名と行数が表示されます。</p><p>利用可能でない場合、位置情報は表示されません。</p><h3 id=unwrap_or><code>unwrap_or()</code>
|
||||
<a class=anchor href=#unwrap_or>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>value_type<span style=color:#f92672>&</span> unwrap_or(value_type<span style=color:#f92672>&</span> opt) <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> unwrap_or(value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> opt) <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span></code></pre></div><p>成功値を持っていた場合それを、持っていなかった場合は引数で与えられた値を返します。</p><h3 id=unwrap_err><code>unwrap_err()</code>
|
||||
<a class=anchor href=#unwrap_err>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>error_type<span style=color:#f92672>&</span> unwrap_err(cxx<span style=color:#f92672>::</span>source_location loc <span style=color:#f92672>=</span> cxx<span style=color:#f92672>::</span>source_location<span style=color:#f92672>::</span>current());
|
||||
</span></span><span style=display:flex><span>error_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> unwrap_err(cxx<span style=color:#f92672>::</span>source_location loc <span style=color:#f92672>=</span> cxx<span style=color:#f92672>::</span>source_location<span style=color:#f92672>::</span>current()) <span style=color:#66d9ef>const</span>;
|
||||
</span></span></code></pre></div><p>失敗値を取り出します。</p><p>失敗値を持っていない場合、<code>toml::bad_result_access</code>が送出されます。</p><p><code>std::source_location</code>または<code>std::experimental::source_location</code>が利用可能か、
|
||||
あるいはコンパイラ拡張によって同等の情報が利用可能な場合、<code>what()</code>文字列に
|
||||
<code>unwrap()</code>が発生したソースコードのファイル名と行数が表示されます。</p><p>利用可能でない場合、位置情報は表示されません。</p><h3 id=as_ok><code>as_ok()</code>
|
||||
<a class=anchor href=#as_ok>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>value_type<span style=color:#f92672>&</span> as_ok() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>value_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> as_ok() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span></code></pre></div><p>チェックなしで成功値を返します。</p><p>成功値を持っていなかった場合、その動作は未定義となります。</p><h3 id=as_err><code>as_err()</code>
|
||||
<a class=anchor href=#as_err>#</a></h3><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span>error_type<span style=color:#f92672>&</span> as_err() <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span><span style=display:flex><span>error_type <span style=color:#66d9ef>const</span><span style=color:#f92672>&</span> as_err() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span>;
|
||||
</span></span></code></pre></div><p>チェックなしで失敗値を返します。</p><p>失敗値を持っていなかった場合、その動作は未定義となります。</p><h1 id=bad_result_access>bad_result_access
|
||||
<a class=anchor href=#bad_result_access>#</a></h1><p><code>result</code>の<code>unwrap</code>または<code>unwrap_err</code>で失敗した際に送出される例外です。</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>namespace</span> toml
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>bad_result_access</span> <span style=color:#f92672>:</span> <span style=color:#66d9ef>public</span> <span style=color:#f92672>::</span>toml<span style=color:#f92672>::</span>exception
|
||||
</span></span><span style=display:flex><span>{
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>public</span><span style=color:#f92672>:</span>
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>explicit</span> bad_result_access(<span style=color:#66d9ef>const</span> std<span style=color:#f92672>::</span>string<span style=color:#f92672>&</span> what_arg);
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>virtual</span> <span style=color:#f92672>~</span>bad_result_access() <span style=color:#66d9ef>noexcept</span> <span style=color:#66d9ef>override</span> <span style=color:#f92672>=</span> <span style=color:#66d9ef>default</span>;
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>virtual</span> <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>char</span><span style=color:#f92672>*</span> <span style=color:#a6e22e>what</span>() <span style=color:#66d9ef>const</span> <span style=color:#66d9ef>noexcept</span> <span style=color:#66d9ef>override</span>;
|
||||
</span></span><span style=display:flex><span> <span style=color:#66d9ef>protected</span><span style=color:#f92672>:</span>
|
||||
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string what_;
|
||||
</span></span><span style=display:flex><span>};
|
||||
</span></span><span style=display:flex><span>}
|
||||
</span></span></code></pre></div></article><footer class=book-footer><div class="flex flex-wrap justify-between"></div><script>(function(){function e(e){const t=window.getSelection(),n=document.createRange();n.selectNodeContents(e),t.removeAllRanges(),t.addRange(n)}document.querySelectorAll("pre code").forEach(t=>{t.addEventListener("click",function(){if(window.getSelection().toString())return;e(t.parentElement),navigator.clipboard&&navigator.clipboard.writeText(t.parentElement.textContent)})})})()</script></footer><label for=menu-control class="hidden book-menu-overlay"></label></div><aside class=book-toc><div class=book-toc-content><nav id=TableOfContents><ul><li><a href=#resulthpp>result.hpp</a></li><li><a href=#success>success</a><ul><li><a href=#メンバ型>メンバ型</a></li><li><a href=#メンバ関数>メンバ関数</a><ul><li><a href=#コンストラクタ>コンストラクタ</a></li><li><a href=#get><code>get()</code></a></li></ul></li><li><a href=#非メンバ関数>非メンバ関数</a><ul><li><a href=#okt><code>ok(T)</code></a></li></ul></li></ul></li><li><a href=#successreference_wrappert><code>success<reference_wrapper<T>></code></a><ul><li><a href=#メンバ型-1>メンバ型</a><ul><li><a href=#get-1><code>get()</code></a></li></ul></li></ul></li><li><a href=#failure>failure</a><ul><li><a href=#メンバ型-2>メンバ型</a></li><li><a href=#メンバ関数-1>メンバ関数</a><ul><li><a href=#コンストラクタ-1>コンストラクタ</a></li><li><a href=#get-2><code>get()</code></a></li></ul></li><li><a href=#非メンバ関数-1>非メンバ関数</a><ul><li><a href=#errt><code>err(T)</code></a></li></ul></li></ul></li><li><a href=#failurereference_wrappert><code>failure<reference_wrapper<T>></code></a><ul><li><a href=#メンバ型-3>メンバ型</a><ul><li><a href=#get-3><code>get()</code></a></li></ul></li></ul></li><li><a href=#result>result</a><ul><li><a href=#メンバ型-4>メンバ型</a><ul><li><a href=#success_type><code>success_type</code></a></li><li><a href=#failure_type><code>failure_type</code></a></li><li><a href=#value_type><code>value_type</code></a></li><li><a href=#error_type><code>error_type</code></a></li></ul></li><li><a href=#メンバ関数-2>メンバ関数</a><ul><li><a href=#コンストラクタ-2>コンストラクタ</a></li><li><a href=#コピームーブコンストラクタ>コピー・ムーブコンストラクタ</a></li><li><a href=#operator><code>operator=</code></a></li><li><a href=#is_ok><code>is_ok()</code></a></li><li><a href=#is_err><code>is_err()</code></a></li><li><a href=#operator-bool><code>operator bool()</code></a></li><li><a href=#unwrap><code>unwrap()</code></a></li><li><a href=#unwrap_or><code>unwrap_or()</code></a></li><li><a href=#unwrap_err><code>unwrap_err()</code></a></li><li><a href=#as_ok><code>as_ok()</code></a></li><li><a href=#as_err><code>as_err()</code></a></li></ul></li></ul></li><li><a href=#bad_result_access>bad_result_access</a></li></ul></nav></div></aside></main></body></html>
|
||||
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