{"id":6171,"date":"2024-05-09T02:24:11","date_gmt":"2024-05-08T17:24:11","guid":{"rendered":"https:\/\/k.foolslab.net\/dailyreport\/?p=6171"},"modified":"2024-05-09T02:24:11","modified_gmt":"2024-05-08T17:24:11","slug":"2024-5-8","status":"publish","type":"post","link":"https:\/\/k.foolslab.net\/dailyreport\/2024-5-8\/","title":{"rendered":"2024\/5\/8(\u6c34)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">cpprefjp\u3078\u306e\u30d7\u30eb\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u901a\u3063\u305f\u3002\u5b09\u3057\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/github.com\/cpprefjp\/site\/pull\/1272\">https:\/\/github.com\/cpprefjp\/site\/pull\/1272<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">cpprefjp\u3092\u8aad\u307f\u9032\u3081\u305f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a55\u4fa1\u3055\u308c\u306a\u3044\u6587\u8108\u3067\u306e\u5b9a\u6570\u5f0f\u8a55\u4fa1\u306b\u3088\u3063\u3066\u7279\u6b8a\u30e1\u30f3\u30d0\u95a2\u6570\u304c\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3055\u308c\u308b\u3053\u3068\u3092\u898f\u5b9a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a55\u4fa1\u3055\u308c\u308b\u3068\u304d\u306b\u521d\u3081\u3066\u751f\u6210\u3055\u308c\u308b=\u8a55\u4fa1\u3055\u308c\u306a\u3044\u304c\u53c2\u7167\u306f\u3055\u308c\u308b\u5834\u5408\u306b\u6b7b\u306c\u3068\u3044\u3046\u306e\u3092\u521d\u3081\u3066\u8a8d\u8b58\u3057\u305f\u3002\u305d\u308c\u307e\u3067\u305d\u3093\u306a\u4ed5\u69d8\u3060\u3063\u305f\u3093\u3060\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a55\u4fa1\u3055\u308c\u306a\u3044\u6587\u8108\u3067\u306e\u30e9\u30e0\u30c0\u5f0f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8eab\u8fd1\u306a\u3068\u3053\u308d\u3067\u3069\u3046\u5b09\u3057\u3044\u304b\u3042\u3093\u307e\u308a\u30d4\u30f3\u3068\u3053\u306a\u304b\u3063\u305f\u304c\u3001\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u307f\u305f\u3068\u3053\u308d<code>std::greater&lt;T><\/code>\u307f\u305f\u3044\u306a\u3084\u3064\u3092\u30e9\u30e0\u30c0\u5f0f\u3067\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u308b\uff1f\uff1f\u3059\u3054\u3044\uff01\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u5206\u4eca\u307e\u3067\u306e\u3060\u3068<code>std::set&lt;int, std::greater&lt;int>><\/code>\u306e<code>greater&lt;int><\/code>\u307f\u305f\u3044\u306e\u3092\u30e9\u30e0\u30c0\u5f0f\u3067\u66f8\u3053\u3046\u3068\u601d\u3046\u3068<code>decltype(\u30e9\u30e0\u30c0\u5f0f)<\/code>\u306e\u5f62\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u7121\u7406\u3060\u3063\u305f&#8230;\u306f\u305a\uff01\uff01(\u81ea\u4fe1\u304c\u306a\u3044)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8981\u7d20\u6570\u4e0d\u660e\u306e\u914d\u5217\u3078\u306e\u5909\u63db\u3092\u8a31\u53ef<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7279\u306b\u7406\u7531\u304c\u306a\u3044\u306e\u3067\u8a31\u53ef\u3068\u3042\u3063\u305f\u306e\u3067\u7b11\u3063\u305f\u3002\u305d\u3093\u306a\u3086\u308b\u3063\u3068\u8a31\u53ef\u3055\u308c\u308b\u3053\u3068\u3042\u308b\u3093\u3060\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7bc4\u56f2for\u6587\u304c\u30ab\u30b9\u30bf\u30de\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u30dd\u30a4\u30f3\u30c8\u3092\u898b\u3064\u3051\u308b\u30eb\u30fc\u30eb\u3092\u7de9\u548c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u306a\u304b\u306a\u304b\u306b\u7d30\u304b\u3044\u4fee\u6b63\u3002\u307e\u3042\u3067\u3082\u9837\u3051\u308b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b26\u53f7\u4ed8\u304d\u6574\u6570\u578b\u304c2\u306e\u88dc\u6570\u8868\u73fe\u3067\u3042\u308b\u3053\u3068\u3092\u898f\u5b9a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u4fdd\u8a3c\u3055\u308c\u308b\u3093\u3060\u3002\u524d\u306b\u53e4\u3081\u306e\u6559\u66f8\u3067\u300c\u4ed5\u69d8\u4e0a\u306f0\u3068\u5225\u306b-0\u304c\u5b58\u5728\u3057\u3046\u308b\u300d\u3068\u3044\u3046\u8a71\u3092\u8aad\u3093\u3060\u304c\u3001C++20\u3067\u306f\u3082\u3046\u305d\u308c\u306f\u8003\u3048\u306a\u304f\u3066\u3044\u3044\u8a33\u3060\u3002\u3057\u304b\u3057\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u304cmod 2^n\u306b\u306a\u308b\u3053\u3068\u306f\u4fdd\u8a3c\u3057\u306a\u3044\u3089\u3057\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">mod 2^n\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3088\u3046\u306a\u8a71\u3082\u805e\u3044\u305f\u6c17\u304c\u3059\u308b\u306e\u3060\u304c\u3001\u6697\u9ed9\u306e\u578b\u5909\u63db\u6642\u306e\u8a71\u3060\u3063\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/en.cppreference.com\/w\/cpp\/language\/implicit_conversion#Integral_conversions\">https:\/\/en.cppreference.com\/w\/cpp\/language\/implicit_conversion#Integral_conversions<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7a7a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3059\u308b\u6700\u9069\u5316\u3092\u652f\u63f4\u3059\u308b\u5c5e\u6027[[no_unique_address]]<a href=\"https:\/\/cpprefjp.github.io\/lang\/cpp20.html\"><\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7a7a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6271\u3044\u3001\u3084\u3063\u3071\u308a1\u30d0\u30a4\u30c8\u78ba\u4fdd\u3055\u308c\u3066\u305f\u3093\u3060\u3002\u305d\u3057\u3066EBO\u3068\u304b\u3044\u3046\u4ed5\u69d8\u3068\u305d\u308c\u3092\u50cd\u304b\u305b\u308b\u305f\u3081\u306e\u6d3e\u751f\u30af\u30e9\u30b9\u3068\u304b\u3044\u3046\u9ed2\u9b54\u8853\u304c\u3042\u3063\u305f\u306e\u306f\u521d\u8033\u3002\u9ed2\u9b54\u8853\u304c1\u3064\u6ec5\u3076\u7406\u7531\u304c\u51fa\u6765\u3066\u5b09\u3057\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u78ba\u7387\u304c\u9ad8\u3044\u5206\u5c90\u3068\u4f4e\u3044\u5206\u5c90\u3092\u4f1d\u3048\u308b\u5c5e\u6027 [[likely]], [[unlikely]]<a href=\"https:\/\/cpprefjp.github.io\/lang\/cpp20.html\"><\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306a\u304b\u306a\u304b\u4f7f\u3044\u3069\u3053\u308d\u304c\u96e3\u3057\u305d\u3046\u3002\u305d\u3093\u306a\u306b\u8d77\u304d\u306a\u3044\u30a8\u30e9\u30fc\u51e6\u7406\u3068\u304b\u306b\u30d3\u30b7\u30d3\u30b7<code>[[unlikely]]<\/code>\u3064\u3051\u305f\u308a\u3059\u308c\u3070\u3044\u3044\u3093\u3060\u308d\u3046\u304b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u72b6\u614b\u3092\u6301\u305f\u306a\u3044\u30e9\u30e0\u30c0\u5f0f\u3092\u3001<a>\u30c7\u30d5\u30a9\u30eb\u30c8\u69cb\u7bc9<\/a>\u53ef\u80fd\u3001\u4ee3\u5165\u53ef\u80fd\u3068\u3059\u308b<a href=\"https:\/\/cpprefjp.github.io\/lang\/cpp20.html\"><\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3067\u304d\u3066\u3044\u3044\u3088\u306a\u3068\u601d\u3044\u3064\u3064\u3001\u51fa\u6765\u308b\u3068\u5177\u4f53\u7684\u306b\u3069\u3046\u4fbf\u5229\u304b\u5206\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3060\u304c\u3001\u6700\u5f8c\u306e\u8aac\u660e\u7528\u30b3\u30fc\u30c9\u3067\u7d0d\u5f97\u3057\u305f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7279\u6b8a\u5316\u306e\u30a2\u30af\u30bb\u30b9\u30c1\u30a7\u30c3\u30af<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u306a\u3093\u304b\u3061\u3087\u3063\u3068\u306a\u3057\u5d29\u3057\u7684\u306a\u8a8d\u3081\u3089\u308c\u65b9\u3067\u5acc\u3060\u306a\u3002\u5909\u306a\u4f8b\u5916\u6761\u9805\u3063\u307d\u3055\u304c\u3042\u308b\u3002\u5916\u304b\u3089\u898b\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u306a\u3089public\u306b\u3059\u308b\u3093\u3058\u3083\u3044\u304b\u3093\u306e\u304b\uff1f\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u3057\u305f\u3044\u3051\u3069\u305d\u308c\u81ea\u4f53\u306f\u5916\u304b\u3089\u898b\u3048\u3066\u6b32\u3057\u304f\u306a\u3044\u307f\u305f\u3044\u306a\u611f\u3058\u306a\u306e\u304b\uff1f\uff1f<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6dfb\u5b57\u6f14\u7b97\u5b50\u5185\u3067\u306e\u30ab\u30f3\u30de\u6f14\u7b97\u5b50\u306e\u4f7f\u7528\u3092\u975e\u63a8\u5968\u5316<a href=\"https:\/\/cpprefjp.github.io\/lang\/cpp20.html\"><\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C++23\u3078\u306e\u826f\u3044\u5e03\u77f3\u3060\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>cpprefjp\u3078\u306e\u30d7\u30eb\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u901a\u3063\u305f\u3002\u5b09\u3057\u3044\u3002 https:\/\/github.com\/cpprefjp\/site\/pull\/1272 cpprefjp\u3092\u8aad\u307f\u9032\u3081\u305f\u3002 \u8a55\u4fa1\u3055\u308c\u306a\u3044\u6587\u8108\u3067\u306e\u5b9a\u6570\u5f0f\u8a55\u4fa1\u306b\u3088\u3063\u3066\u7279\u6b8a\u30e1\u30f3\u30d0 &hellip; <\/p>\n<div><a href=\"https:\/\/k.foolslab.net\/dailyreport\/2024-5-8\/\" class=\"more\">Read more &raquo;<span class=\"screen-reader-text\"> &#8220;2024\/5\/8(\u6c34)&#8221;<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6171","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/posts\/6171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/comments?post=6171"}],"version-history":[{"count":1,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/posts\/6171\/revisions"}],"predecessor-version":[{"id":6172,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/posts\/6171\/revisions\/6172"}],"wp:attachment":[{"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/media?parent=6171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/categories?post=6171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/tags?post=6171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}