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Merge pull request #291 from franzpoeschel/namespace-versioning

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Use an inline namespace to distinguish emitted symbols by version numbers e4051f77d7
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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='
from.hpp
#
toml::getやtoml::findで使用する、toml::valueからの変換を定義する構造体です。
メンバ関数にfrom_tomlを追加することによっても同じ機能を追加できますが、メンバ関数を追加できないクラスに対してはfrom<T>を使用してください。
このファイルでは特定の実装は提供しません。使用する際に、この構造体を特殊化してください。
namespace toml
{
template<typename T>
struct from;
} // toml
例
#
namespace extlib
{
struct foo
{
int a;
std::string b;
};
} // extlib
#include <toml11/from.hpp>
namespace toml
{
template<>
struct from<extlib::foo>
{
template<typename TC>
static extlib::foo from_toml(const toml::basic_value<TC>& v)
{
return extlib::foo{toml::find<int>(v, "a"), toml::find<std::string>(v, "b")};
}
};
} // toml
関連項目
#
conversion.hpp
into.hpp
'><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/from/"><meta property="og:site_name" content="toml11"><meta property="og:title" content="from.hpp"><meta property="og:description" content='from.hpp # toml::getやtoml::findで使用する、toml::valueからの変換を定義する構造体です。
メンバ関数にfrom_tomlを追加することによっても同じ機能を追加できますが、メンバ関数を追加できないクラスに対してはfrom<T>を使用してください。
このファイルでは特定の実装は提供しません。使用する際に、この構造体を特殊化してください。
namespace toml { template<typename T> struct from; } // toml 例 # namespace extlib { struct foo { int a; std::string b; }; } // extlib #include <toml11/from.hpp> namespace toml { template<> struct from<extlib::foo> { template<typename TC> static extlib::foo from_toml(const toml::basic_value<TC>& v) { return extlib::foo{toml::find<int>(v, "a"), toml::find<std::string>(v, "b")}; } }; } // toml 関連項目 # conversion.hpp into.hpp'><meta property="og:locale" content="ja"><meta property="og:type" content="article"><meta property="article:section" content="docs"><title>from.hpp | toml11</title>
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</label><strong>from.hpp</strong>
<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=#fromhpp>from.hpp</a><ul><li><a href=#例>例</a></li></ul></li><li><a href=#関連項目>関連項目</a></li></ul></nav></aside></header><article class="markdown book-article"><h1 id=fromhpp>from.hpp
<a class=anchor href=#fromhpp>#</a></h1><p><code>toml::get</code>や<code>toml::find</code>で使用する、<code>toml::value</code>からの変換を定義する構造体です。</p><p>メンバ関数に<code>from_toml</code>を追加することによっても同じ機能を追加できますが、メンバ関数を追加できないクラスに対しては<code>from&lt;T></code>を使用してください。</p><p>このファイルでは特定の実装は提供しません。使用する際に、この構造体を特殊化してください。</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></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672>&lt;</span><span style=color:#66d9ef>typename</span> T<span style=color:#f92672>&gt;</span>
</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>from</span>;
</span></span><span style=display:flex><span>
</span></span><span style=display:flex><span>} <span style=color:#75715e>// toml
</span></span></span></code></pre></div><h2 id=例>例
<a class=anchor href=#%e4%be%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>namespace</span> extlib
</span></span><span style=display:flex><span>{
</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>foo</span>
</span></span><span style=display:flex><span>{
</span></span><span style=display:flex><span> <span style=color:#66d9ef>int</span> a;
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string b;
</span></span><span style=display:flex><span>};
</span></span><span style=display:flex><span>} <span style=color:#75715e>// extlib
</span></span></span><span style=display:flex><span><span style=color:#75715e></span>
</span></span><span style=display:flex><span><span style=color:#75715e>#include</span> <span style=color:#75715e>&lt;toml11/from.hpp&gt;</span><span style=color:#75715e>
</span></span></span><span style=display:flex><span><span style=color:#75715e></span>
</span></span><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>&lt;&gt;</span>
</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>from</span><span style=color:#f92672>&lt;</span>extlib<span style=color:#f92672>::</span>foo<span style=color:#f92672>&gt;</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>&lt;</span><span style=color:#66d9ef>typename</span> TC<span style=color:#f92672>&gt;</span>
</span></span><span style=display:flex><span> <span style=color:#66d9ef>static</span> extlib<span style=color:#f92672>::</span>foo from_toml(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>basic_value<span style=color:#f92672>&lt;</span>TC<span style=color:#f92672>&gt;&amp;</span> v)
</span></span><span style=display:flex><span> {
</span></span><span style=display:flex><span> <span style=color:#66d9ef>return</span> extlib<span style=color:#f92672>::</span>foo{toml<span style=color:#f92672>::</span>find<span style=color:#f92672>&lt;</span><span style=color:#66d9ef>int</span><span style=color:#f92672>&gt;</span>(v, <span style=color:#e6db74>&#34;a&#34;</span>), toml<span style=color:#f92672>::</span>find<span style=color:#f92672>&lt;</span>std<span style=color:#f92672>::</span>string<span style=color:#f92672>&gt;</span>(v, <span style=color:#e6db74>&#34;b&#34;</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:#75715e>// toml
</span></span></span></code></pre></div><h1 id=関連項目>関連項目
<a class=anchor href=#%e9%96%a2%e9%80%a3%e9%a0%85%e7%9b%ae>#</a></h1><ul><li><a href=https://toruniina.github.io/toml11/ja/docs/reference/conversion/>conversion.hpp</a></li><li><a href=https://toruniina.github.io/toml11/ja/docs/reference/into/>into.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=#fromhpp>from.hpp</a><ul><li><a href=#例>例</a></li></ul></li><li><a href=#関連項目>関連項目</a></li></ul></nav></div></aside></main></body></html>