{"provider_name":"Hatena Blog","version":"1.0","height":"190","blog_url":"https://secret-garden.hatenablog.com/","published":"2017-08-13 20:31:50","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsecret-garden.hatenablog.com%2Fentry%2F2017%2F08%2F13%2F203150\" title=\"C++17 \u3067\u8ffd\u52a0\u3055\u308c\u305f std::conjunction/std::disjunction \u30e1\u30bf\u95a2\u6570 - Secret Garden(Instrumental)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"categories":["C++"],"type":"rich","blog_title":"Secret Garden(Instrumental)","author_url":"https://blog.hatena.ne.jp/osyo-manga/","title":"C++17 \u3067\u8ffd\u52a0\u3055\u308c\u305f std::conjunction/std::disjunction \u30e1\u30bf\u95a2\u6570","url":"https://secret-garden.hatenablog.com/entry/2017/08/13/203150","width":"100%","description":"\u77e5\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u899a\u66f8\u3002 C++17 \u3067 std::conjunction \u3068 std::disjunction \u3068\u3044\u30462\u3064\u306e\u30e1\u30bf\u95a2\u6570\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002 \u3053\u306e2\u3064\u306e\u30e1\u30bf\u95a2\u6570\u306f\u3044\u305a\u308c\u3082\u53ef\u5909\u9577\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u5f15\u6570\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002 \u5177\u4f53\u7684\u306b\u3069\u306e\u3088\u3046\u306a\u30e1\u30bf\u95a2\u6570\u306a\u306e\u304b\u306f\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002 #include <type_traits> int main(){ using true_ = std::true_type; using false_ = std::false_type; // \u5f15\u6570\u578b\u306e ::value \u304c\u5168\u3066 true \u306a\u3089 true static_assert( std::conjunct\u2026","author_name":"osyo-manga"}