<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Optional on Hical</title><link>https://hicalio.cn/tags/optional/</link><description>Recent content in Optional on Hical</description><generator>Hugo</generator><language>zh-cn</language><lastBuildDate>Thu, 26 May 2022 00:00:00 +0000</lastBuildDate><atom:link href="https://hicalio.cn/tags/optional/index.xml" rel="self" type="application/rss+xml"/><item><title>深入学习 std::optional 与 std::variant</title><link>https://hicalio.cn/posts/%E6%B7%B1%E5%85%A5%E5%AD%A6%E4%B9%A0optional%E4%B8%8Evariant/</link><pubDate>Thu, 26 May 2022 00:00:00 +0000</pubDate><guid>https://hicalio.cn/posts/%E6%B7%B1%E5%85%A5%E5%AD%A6%E4%B9%A0optional%E4%B8%8Evariant/</guid><description>深入理解 std::optional 与 std::variant 的设计动机、内存布局、核心 API 与实战模式——告别空指针和裸 union，拥抱类型安全的值语义。</description></item></channel></rss>