{"author_name":"fa11enprince","url":"https://gup.monster/entry/2014/11/01/031343","published":"2014-11-01 03:13:43","blog_title":"Gobble up pudding","provider_url":"https://hatena.blog","type":"rich","width":"100%","height":"190","title":"C++\u3067std::string\u3092\u3069\u3046\u8fd4\u3059\u3079\u304d\u304b Part2","categories":["C++","Programming"],"provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/fa11enprince/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fgup.monster%2Fentry%2F2014%2F11%2F01%2F031343\" title=\"C++\u3067std::string\u3092\u3069\u3046\u8fd4\u3059\u3079\u304d\u304b Part2 - Gobble up pudding\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://gup.monster/","description":"Part1\u306f\u3053\u308c \u3082\u306e\u3059\u3054\u304f\u3042\u308a\u304c\u305f\u3044\u60c5\u5831\u3092\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002 RVO\u306b\u3064\u3044\u3066\uff08NRVO\u3068\u3044\u3046\u306e\u3082\u3042\u308b\uff09 \u3053\u308c\u3092\u7121\u52b9\u5316\u3059\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3042\u308a\u307e\u3059\u3088\u3068\u306e\u3053\u3068\u3002 id:yohhoy\u3055\u3093\u306e\u30a2\u30c9\u30d0\u30a4\u30b9\u304c gcc\u3067\u3042\u308c\u3070-fno-elide-constructors\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001 RVO\u304c\u7121\u52b9\u5316\u3055\u308c\u3066\u7d50\u679c\u304c\u5909\u308f\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002 \u3068\u3044\u3046\u3053\u3068\u3067\u3084\u3063\u3066\u307f\u307e\u3057\u305f\u3002 \u30b3\u30fc\u30c9\u306f\u524d\u56de\u306e\u3092\u3061\u3087\u3063\u3068\u7aef\u6298\u3063\u3066\u3053\u308c\u3067\u691c\u8a3c \u30bd\u30fc\u30b9\u30b3\u30fc\u30c9 Part1\u3067\u66f8\u3044\u305f\u3082\u306e\u306e\u4e00\u90e8\u629c\u7c8b\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3059\u3002 \u30d5\u30c4\u30fc\u306b\u30b3\u30f3\u30d1\u30a4\u30eb $ g++ -o rvotest.exe rvotest.cpp \u5b9f\u884c\u7d50\u679c \u30c6\u30b9\u30c83_a function test\u2026","version":"1.0","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/f/fa11enprince/20200701/20200701030708.jpg"}