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96 lines
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96 lines
13 KiB
HTML
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<!doctype html><html lang=en 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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into.hpp
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#
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Defines a struct used for conversion from user-defined types into toml::value constructors.
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You can achieve the same functionality by adding an into_toml member function, but for classes where you cannot add member functions, use into<T>.
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This file does not provide specific implementations. Please specialize this struct when using.
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namespace toml
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{
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template<typename T>
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struct into;
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} // toml
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Example
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#
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namespace extlib
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{
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struct foo
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{
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int a;
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std::string b;
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};
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} // extlib
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#include <toml11/into.hpp>
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namespace toml
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{
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template<>
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struct into<extlib::foo>
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{
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template<typename TC>
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static toml::basic_value<TC> into_toml(const extlib::foo& f)
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{
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using value_type = toml::basic_value<TC>;
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using table_type = typename value_type::table_type;
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return value_type(table_type{{"a", f.a}, {"b", f.b}});
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}
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};
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} // toml
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Related
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#
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conversion.hpp
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from.hpp
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'><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/docs/reference/into/"><meta property="og:site_name" content="toml11"><meta property="og:title" content="into.hpp"><meta property="og:description" content='into.hpp # Defines a struct used for conversion from user-defined types into toml::value constructors.
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You can achieve the same functionality by adding an into_toml member function, but for classes where you cannot add member functions, use into<T>.
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This file does not provide specific implementations. Please specialize this struct when using.
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namespace toml { template<typename T> struct into; } // toml Example # namespace extlib { struct foo { int a; std::string b; }; } // extlib #include <toml11/into.hpp> namespace toml { template<> struct into<extlib::foo> { template<typename TC> static toml::basic_value<TC> into_toml(const extlib::foo& f) { using value_type = toml::basic_value<TC>; using table_type = typename value_type::table_type; return value_type(table_type{{"a", f.a}, {"b", f.b}}); } }; } // toml Related # conversion.hpp from.hpp'><meta property="og:locale" content="en"><meta property="og:type" content="article"><meta property="article:section" content="docs"><title>into.hpp | toml11</title><link rel=manifest href=/toml11/manifest.json><link rel=icon href=/toml11/favicon.png><link rel=canonical href=https://toruniina.github.io/toml11/docs/reference/into/><link rel=alternate hreflang=ja href=https://toruniina.github.io/toml11/ja/docs/reference/into/ title=into.hpp><link rel=stylesheet href=/toml11/book.min.6d8037b375fe949eee1b70501c5fb9478914c9c5eb3ef7696163fd3031c69421.css integrity="sha256-bYA3s3X+lJ7uG3BQHF+5R4kUycXrPvdpYWP9MDHGlCE=" crossorigin=anonymous><script defer src=/toml11/fuse.min.js></script><script defer src=/toml11/en.search.min.87bec23503963d7026bfa3a917b92707789d315c9c9e005e23226b35dce643f5.js integrity="sha256-h77CNQOWPXAmv6OpF7knB3idMVycngBeIyJrNdzmQ/U=" 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/><span>toml11</span></a></h2><div class="book-search hidden"><input type=text id=book-search-input placeholder=Search aria-label=Search 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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English</a></label><ul><li><a href=https://toruniina.github.io/toml11/ja/docs/reference/into/>日本語</a></li></ul></li></ul><ul><li><a href=/toml11/docs/installation/>installation</a><ul></ul></li><li><input type=checkbox id=section-291123c850af98d8b815ccdbb4c33657 class=toggle>
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<label for=section-291123c850af98d8b815ccdbb4c33657 class="flex justify-between"><a href=/toml11/docs/features/>features</a></label><ul><li><a href=/toml11/docs/features/parsing_files/>parsing files</a></li><li><a href=/toml11/docs/features/value/>getting values</a></li><li><a href=/toml11/docs/features/error_message/>error message</a></li><li><a href=/toml11/docs/features/serialize/>serializing values</a></li><li><a href=/toml11/docs/features/configure_types/>configuring types</a></li><li><a href=/toml11/docs/features/literal/>toml literal</a></li><li><a href=/toml11/docs/features/toml_spec/>toml spec</a></li><li><a href=/toml11/docs/features/extension/>extension</a></li></ul></li><li><input type=checkbox id=section-e2e812e55021b82e114feaae98f1a02e class=toggle checked>
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<label for=section-e2e812e55021b82e114feaae98f1a02e class="flex justify-between"><a href=/toml11/docs/reference/>reference</a></label><ul><li><a href=/toml11/docs/reference/color/>color.hpp</a></li><li><a href=/toml11/docs/reference/comments/>comments.hpp</a></li><li><a href=/toml11/docs/reference/conversion/>conversion.hpp</a></li><li><a href=/toml11/docs/reference/datetime/>datetime.hpp</a></li><li><a href=/toml11/docs/reference/error_info/>error_info.hpp</a></li><li><a href=/toml11/docs/reference/exception/>exception.hpp</a></li><li><a href=/toml11/docs/reference/find/>find.hpp</a></li><li><a href=/toml11/docs/reference/format/>format.hpp</a></li><li><a href=/toml11/docs/reference/from/>from.hpp</a></li><li><a href=/toml11/docs/reference/get/>get.hpp</a></li><li><a href=/toml11/docs/reference/into/ class=active>into.hpp</a></li><li><a href=/toml11/docs/reference/literal/>literal.hpp</a></li><li><a href=/toml11/docs/reference/ordered_map/>ordered_map.hpp</a></li><li><a href=/toml11/docs/reference/parser/>parser.hpp</a></li><li><a href=/toml11/docs/reference/result/>result.hpp</a></li><li><a href=/toml11/docs/reference/serializer/>serializer.hpp</a></li><li><a href=/toml11/docs/reference/source_location/>source_location.hpp</a></li><li><a href=/toml11/docs/reference/spec/>spec.hpp</a></li><li><a href=/toml11/docs/reference/toml_fwd/>toml_fwd.hpp</a></li><li><a href=/toml11/docs/reference/toml/>toml.hpp</a></li><li><a href=/toml11/docs/reference/types/>types.hpp</a></li><li><a href=/toml11/docs/reference/value_t/>value_t.hpp</a></li><li><a href=/toml11/docs/reference/value/>value.hpp</a></li><li><a href=/toml11/docs/reference/version/>version.hpp</a></li><li><a href=/toml11/docs/reference/visit/>visit.hpp</a></li></ul></li><li><a href=/toml11/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>into.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=#intohpp>into.hpp</a><ul><li><a href=#example>Example</a></li></ul></li><li><a href=#related>Related</a></li></ul></nav></aside></header><article class="markdown book-article"><h1 id=intohpp>into.hpp
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<a class=anchor href=#intohpp>#</a></h1><p>Defines a <code>struct</code> used for conversion from user-defined types into <code>toml::value</code> constructors.</p><p>You can achieve the same functionality by adding an <code>into_toml</code> member function, but for classes where you cannot add member functions, use <code>into<T></code>.</p><p>This file does not provide specific implementations. Please specialize this <code>struct</code> when using.</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>
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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>into</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:#75715e>// toml
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</span></span></span></code></pre></div><h2 id=example>Example
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<a class=anchor href=#example>#</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>namespace</span> extlib
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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>struct</span> <span style=color:#a6e22e>foo</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>int</span> a;
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</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string b;
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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:#75715e>// extlib
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</span></span></span><span style=display:flex><span><span style=color:#75715e></span>
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</span></span><span style=display:flex><span><span style=color:#75715e>#include</span> <span style=color:#75715e><toml11/into.hpp></span><span style=color:#75715e>
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</span></span></span><span style=display:flex><span><span style=color:#75715e></span>
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</span></span><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>
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</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>into</span><span style=color:#f92672><</span>extlib<span style=color:#f92672>::</span>foo<span style=color:#f92672>></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> TC<span style=color:#f92672>></span>
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</span></span><span style=display:flex><span> <span style=color:#66d9ef>static</span> toml<span style=color:#f92672>::</span>basic_value<span style=color:#f92672><</span>TC<span style=color:#f92672>></span> into_toml(<span style=color:#66d9ef>const</span> extlib<span style=color:#f92672>::</span>foo<span style=color:#f92672>&</span> f)
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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> toml<span style=color:#f92672>::</span>basic_value<span style=color:#f92672><</span>TC<span style=color:#f92672>></span>;
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</span></span><span style=display:flex><span> <span style=color:#66d9ef>using</span> table_type <span style=color:#f92672>=</span> <span style=color:#66d9ef>typename</span> value_type<span style=color:#f92672>::</span>table_type;
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</span></span><span style=display:flex><span> <span style=color:#66d9ef>return</span> <span style=color:#a6e22e>value_type</span>(table_type{{<span style=color:#e6db74>"a"</span>, f.a}, {<span style=color:#e6db74>"b"</span>, f.b}});
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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:#75715e>// toml
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</span></span></span></code></pre></div><h1 id=related>Related
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<a class=anchor href=#related>#</a></h1><ul><li><a href=https://toruniina.github.io/toml11/docs/reference/conversion/>conversion.hpp</a></li><li><a href=https://toruniina.github.io/toml11/docs/reference/from/>from.hpp</a></li></ul></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=#intohpp>into.hpp</a><ul><li><a href=#example>Example</a></li></ul></li><li><a href=#related>Related</a></li></ul></nav></div></aside></main></body></html>
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