{"id":2078,"date":"2024-04-15T21:23:38","date_gmt":"2024-04-15T12:23:38","guid":{"rendered":"https:\/\/www.rocher.kyoto.jp\/arbr\/?p=2078"},"modified":"2024-04-15T21:23:38","modified_gmt":"2024-04-15T12:23:38","slug":"c%e5%8b%89%e5%bc%b7%e3%83%a1%e3%83%a2","status":"publish","type":"post","link":"https:\/\/www.rocher.kyoto.jp\/arbr\/?p=2078","title":{"rendered":"C++\u52c9\u5f37\u30e1\u30e2"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u3084\u308a\u305d\u3046\u306a\u30a8\u30e9\u30fc<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">string\u30ea\u30c6\u30e9\u30eb\u306e\u8a2d\u5b9a\u3082\u308c<\/h3>\n\n\n\n<p>string\u578b\u306e\u30ea\u30c6\u30e9\u30eb\u306finclude\u3068namespace\u8a2d\u5b9a\u304c\u3044\u308b<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-dark-gray-background-color has-text-color has-background has-link-color wp-elements-6feb3b81d41d88af883de22586028cb6\"><code>#include &lt;string>\nusing namespace std::string_literals;\n\nint main(){\n    std::cout &lt;&lt; \"hoge\\n\"<strong>s<\/strong>;\n}<\/code><\/pre>\n\n\n\n<p>\u5fd8\u308c\u305f\u5834\u5408\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306f<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">vscode<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">\u30e6\u30fc\u30b6\u30fc\u5b9a\u7fa9\u306e\u30ea\u30c6\u30e9\u30eb\u6f14\u7b97\u5b50\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093C\/C++(2486)<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">gcc<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">chap3.cpp:4:18: error: unable to find string literal operator \u2018operator\"\"s\u2019 with \u2018const char [6]\u2019, \u2018long unsigned int\u2019 arguments<br>    4 |     std::cout &lt;&lt; \"hoge\\n\"s;<br>      |                  ^~~~~~~~~<br>make: *** [Makefile:6: chap3.o] Error 1<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u88dc\u8db3<\/h4>\n\n\n\n<p>C++11\u3067\u30ea\u30c6\u30e9\u30eb\u6f14\u7b97\u5b50\u3092\u30e6\u30fc\u30b6\u30fc\u5b9a\u7fa9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3068\u306e\u3053\u3068\u3002\u81ea\u5206\u3067\u5b9a\u7fa9\u3059\u308b\u306a\u3089<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-dark-gray-background-color has-text-color has-background has-link-color wp-elements-9861b676bbe873e2f2b5844bfaa62ff0\"><code>\/\/using namespace std::string_literals;\n\nstd::string operator\"\"s(const char* str, size_t len) {\n    return std::string(str, len);\n}<\/code><\/pre>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u81ea\u4f5c\u3059\u308b\u5834\u5408\u306f\u30a2\u30f3\u30b9\u30b3(_)\u3067\u59cb\u3081\u308d\u3068\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted has-white-color has-dark-gray-background-color has-text-color has-background has-link-color wp-elements-c4af145c2eefce1fb3577c6d3434755c\">warning: literal operator suffixes not preceded by \u2018_\u2019 are reserved for future standardization [-Wliteral-suffix]<\/pre>\n\n\n\n<p>\u8a66\u3057\u306b\u81ea\u4f5c\u3057\u305f\u3089<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-dark-gray-background-color has-text-color has-background has-link-color wp-elements-27652547e613057767aee067f5fa4413\"><code>#include &lt;iostream>\n#include &lt;string>\n\/\/using namespace std::string_literals;\n\nstd::string operator\"\"s(const char* str, size_t len) {\n    return std::string(str, len);\n}\n\nstd::string operator\"\"_sjisaku(const char* str, size_t len) {\n    return std::string(str, len);\n}\n\nint main(){\n    std::cout &lt;&lt; \"hoge\\n\"s;\n    std::cout &lt;&lt; \"hogejisaku\\n\"_sjisaku;\n}<\/code><\/pre>\n\n\n\n<p>\u4e0a\u3067\u3082\u52d5\u3044\u305f<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3084\u308a\u305d\u3046\u306a\u30a8\u30e9\u30fc string\u30ea\u30c6\u30e9\u30eb\u306e\u8a2d\u5b9a\u3082\u308c string\u578b\u306e\u30ea\u30c6\u30e9\u30eb\u306finclude\u3068namespace\u8a2d\u5b9a\u304c\u3044\u308b \u5fd8\u308c\u305f\u5834\u5408\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306f vscode \u30e6\u30fc\u30b6\u30fc\u5b9a\u7fa9\u306e\u30ea\u30c6\u30e9\u30eb\u6f14\u7b97\u5b50\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093C\/C+ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[136],"tags":[],"class_list":["post-2078","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts\/2078","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2078"}],"version-history":[{"count":2,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts\/2078\/revisions"}],"predecessor-version":[{"id":2080,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts\/2078\/revisions\/2080"}],"wp:attachment":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}