{"categories":["C++"],"title":"get\u304bvalue\u304b","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffaithandbrave.hateblo.jp%2Fentry%2F2014%2F08%2F05%2F151146\" title=\"get\u304bvalue\u304b - Faith and Brave - C++\u3067\u904a\u307c\u3046\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://faithandbrave.hateblo.jp/entry/2014/08/05/151146","author_url":"https://blog.hatena.ne.jp/faith_and_brave/","provider_url":"https://hatena.blog","published":"2014-08-05 15:11:46","height":"190","blog_title":"Faith and Brave - C++\u3067\u904a\u307c\u3046","width":"100%","image_url":null,"description":"std::optional\u304c\u63d0\u6848\u3055\u308c\u305f\u6700\u521d\u306e\u6642\u671f\u3001\u4e2d\u8eab\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u51fa\u3059\u65b9\u6cd5\u304c\u3001\u9593\u63a5\u53c2\u7167\u6f14\u7b97\u5b50\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u305d\u306e\u3042\u3068\u3001\u79c1\u304c\u300cboost::optional\u306b\u306fget()\u30e1\u30f3\u30d0\u95a2\u6570\u304c\u3042\u308b\u304c\u3001\u3053\u3061\u3089\u306b\u306f\u306a\u3044\u3002\u79c1\u306f\u30dd\u30a4\u30f3\u30bf\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3088\u308a\u306f\u3001\u305d\u3061\u3089\u3092\u4f7f\u3044\u305f\u3044\u3002\u300d\u3068\u63d0\u6848\u3057\u305f\u3068\u3053\u308d\u3001get()\u30e1\u30f3\u30d0\u95a2\u6570\u306e\u4ee3\u308f\u308a\u306b\u3001value()\u30e1\u30f3\u30d0\u95a2\u6570\u304c\u5165\u308a\u307e\u3057\u305f\u3002 \u305d\u306e\u7d4c\u7def\u3068\u3057\u3066\u306f\u3053\u3046\u3044\u3046\u3082\u306e\u3067\u3059\u3002 shared_ptr\u3068unique_ptr\u306b\u306f\u3001\u751f\u30dd\u30a4\u30f3\u30bf\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306eget()\u30e1\u30f3\u30d0\u95a2\u6570\u304c\u3042\u308b\u3002 optional\u306f\u3001\u898b\u3088\u3046\u306b\u3088\u3063\u3066\u306f\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3068\u898b\u306a\u3059\u3053\u3068\u3082\u3067\u304d\u308b\u3002 optional\u306bget()\u2026","blog_url":"https://faithandbrave.hateblo.jp/","type":"rich","author_name":"faith_and_brave","version":"1.0"}