{"id":2044,"date":"2025-03-24T08:48:28","date_gmt":"2025-03-23T23:48:28","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2044"},"modified":"2025-03-24T08:48:53","modified_gmt":"2025-03-23T23:48:53","slug":"%e3%80%90%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%e3%80%91c%e3%81%aenullptr%e3%82%92%e5%ae%8c%e5%85%a8%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%ef%bc%81%e5%ae%89%e5%85%a8%e3%81%aa%e3%82%b7%e3%83%bc","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2044","title":{"rendered":"\u3010\u5b8c\u5168\u30ac\u30a4\u30c9\u3011C++\u306enullptr\u3092\u5b8c\u5168\u30de\u30b9\u30bf\u30fc\uff01\u5b89\u5168\u306a\u30b7\u30fc\u30c9\u3078\u306e\u59cb\u307e\u308a"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">nullptr\u3068\u306f\uff1f\u30e2\u30c0\u30f3C++\u306b\u304a\u3051\u308b\u91cd\u8981\u6027<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u5f93\u6765\u306eNULL\u306e\u554f\u984c\u70b9\u3068\u9650\u754c<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">nullptr\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u91cd\u8981\u306a\u8ab2\u984c<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">nullptr\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">\u30dd\u30a4\u30f3\u30bf\u306e\u521d\u671f\u5316\u306b\u304a\u3051\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">\u95a2\u6570\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u306enullptr\u306e\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-6\">nullptr\u3092\u4f7f\u3063\u305f\u5b89\u5168\u306a\u30b7\u30fc\u30c9\u624b\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-7\">null\u30c1\u30a7\u30c3\u30af\u306e\u52b9\u7387\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-8\">\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3068nullptr\u306e\u7d44\u307f\u5408\u308f\u305b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-9\">\u5b9f\u8df5\u7684\u306anullptr\u306e\u6d3b\u7528\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-10\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050nullptr\u306e\u4f7f\u3044\u65b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u5b89\u5168\u306a\u521d\u671f\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-12\">nullptr\u306b\u95a2\u3059\u308b\u4e00\u822c\u7684\u306a\u3082\u306e\u3068\u6ce8\u610f\u70b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">NULL\u3068nullptr\u306e\u5fae\u5999\u306a\u9055\u3044<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-14\">\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u8b66\u544a\u3092\u6d3b\u7528\u3057\u305f\u554f\u984c\u306e\u65e9\u671f\u767a\u898b<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-15\">\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u306enullptr\u79fb\u884c\u30ac\u30a4\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-16\">\u6bb5\u968e\u7684\u306a\u79fb\u884c\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-17\">\u79fb\u884c\u6642\u306e\u4e92\u63db\u6027\u7dad\u6301\u306e\u30dd\u30a4\u30f3\u30c8<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">nullptr\u3068\u306f\uff1f\u30e2\u30c0\u30f3C++\u306b\u304a\u3051\u308b\u91cd\u8981\u6027<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u5f93\u6765\u306eNULL\u306e\u554f\u984c\u70b9\u3068\u9650\u754c<\/h3>\n\n\n\n<p>C++11\u3088\u308a\u524d\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30dd\u30a4\u30f3\u30bf\u306e\u521d\u671f\u5316\u3084\u30cc\u30eb\u30dd\u30a4\u30f3\u30bf\u306e\u8868\u73fe\u306bNULL\u30de\u30af\u30ed\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u306f\u6df1\u523b\u306a\u554f\u984c\u304c\u3042\u308a\u307e\u3057\u305f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5f93\u6765\u306eNULL\u306e\u554f\u984c\u3092\u793a\u3059\u4f8b\n#define NULL 0  \/\/ \u591a\u304f\u306e\u5b9f\u88c5\u3067NULL\u306f\u5358\u306a\u308b0\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u305f\n\nvoid process(int value) {\n    std::cout &lt;&lt; \"\u6574\u6570\u5024\u3092\u51e6\u7406: \" &lt;&lt; value &lt;&lt; std::endl;\n}\n\nvoid process(int* ptr) {\n    if (ptr) {\n        std::cout &lt;&lt; \"\u30dd\u30a4\u30f3\u30bf\u5024\u3092\u51e6\u7406: \" &lt;&lt; *ptr &lt;&lt; std::endl;\n    }\n}\n\nint main() {\n    process(NULL);  \/\/ \u3069\u3061\u3089\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u304c\u547c\u3070\u308c\u308b\uff1f\u2192\u6574\u6570\u7248\u304c\u547c\u3070\u308c\u308b\n    return 0;\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306e\u554f\u984c\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NULL\u306f\u5b9f\u8cea\u7684\u306b\u6574\u6570\u306e0\u3068\u3057\u3066\u6271\u308f\u308c\u308b<\/li>\n\n\n\n<li>\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u3055\u308c\u305f\u95a2\u6570\u547c\u3073\u51fa\u3057\u3067\u4e88\u671f\u305b\u306c\u52d5\u4f5c\u3092\u5f15\u304d\u8d77\u3053\u3059<\/li>\n\n\n\n<li>\u578b\u5b89\u5168\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u306a\u3044<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">nullptr\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u91cd\u8981\u306a\u8ab2\u984c<\/h3>\n\n\n\n<p>C++11\u3067\u5c0e\u5165\u3055\u308c\u305fnullptr\u306f\u3001\u4ee5\u4e0b\u306e\u91cd\u8981\u306a\u8ab2\u984c\u3092\u89e3\u6c7a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u578b\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ nullptr\u3092\u4f7f\u7528\u3057\u305f\u5b89\u5168\u306a\u4f8b\nvoid process(int value);\nvoid process(int* ptr);\n\nint main() {\n    process(nullptr);  \/\/ \u660e\u78ba\u306b\u30dd\u30a4\u30f3\u30bf\u7248\u304c\u547c\u3070\u308c\u308b\n    return 0;\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u660e\u793a\u7684\u306a\u610f\u56f3\u306e\u8868\u73fe<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ nullptr\u306b\u3088\u308b\u610f\u56f3\u306e\u660e\u78ba\u5316\nclass Resource {\n    int* data = nullptr;  \/\/ \u672a\u521d\u671f\u5316\u3067\u3042\u308b\u3053\u3068\u304c\u660e\u78ba\npublic:\n    bool isInitialized() const { return data != nullptr; }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u3067\u306e\u6574\u5408\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nvoid checkPointer(T* ptr) {\n    if (ptr == nullptr) {  \/\/ \u3042\u3089\u3086\u308b\u30dd\u30a4\u30f3\u30bf\u578b\u3067\u4e00\u8cab\u3057\u305f\u52d5\u4f5c\n        std::cout &lt;&lt; \"\u30cc\u30eb\u30dd\u30a4\u30f3\u30bf\u3067\u3059\" &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<p>nullptr\u306e\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>std::nullptr_t\u3068\u3044\u3046\u72ec\u81ea\u306e\u578b\u3092\u6301\u3064<\/li>\n\n\n\n<li>\u3059\u3079\u3066\u306e\u30dd\u30a4\u30f3\u30bf\u578b\u306b\u5909\u63db\u53ef\u80fd<\/li>\n\n\n\n<li>\u6574\u6570\u578b\u3078\u306e\u6697\u9ed9\u306e\u578b\u5909\u63db\u3092\u8a31\u53ef\u3057\u306a\u3044<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u578b\u30c1\u30a7\u30c3\u30af\u3092\u5f37\u5316<\/li>\n<\/ul>\n\n\n\n<p>\u30e2\u30c0\u30f3C++\u306b\u304a\u3044\u3066\u3001nullptr\u306e\u4f7f\u7528\u306f\u5358\u306a\u308b\u8a00\u8a9e\u6a5f\u80fd\u306e\u9032\u5316\u4ee5\u4e0a\u306e\u610f\u5473\u3092\u6301\u3061\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u578b\u5b89\u5168\u6027\u3068\u30b3\u30fc\u30c9\u54c1\u8cea\u306e\u5411\u4e0a\u3092\u91cd\u8996\u3059\u308b\u30e2\u30c0\u30f3C++\u306e\u8a2d\u8a08\u54f2\u5b66\u3092\u4f53\u73fe\u3059\u308b\u91cd\u8981\u306a\u8981\u7d20\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u9069\u5207\u306anullptr\u306e\u4f7f\u7528\u306f\u3001\u3088\u308a\u5b89\u5168\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u306e\u69cb\u7bc9\u306b\u8ca2\u732e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">nullptr\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u30dd\u30a4\u30f3\u30bf\u306e\u521d\u671f\u5316\u306b\u304a\u3051\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u30dd\u30a4\u30f3\u30bf\u306e\u521d\u671f\u5316\u306f\u3001\u30e1\u30e2\u30ea\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u4e0a\u3067\u6700\u3082\u91cd\u8981\u306a\u64cd\u4f5c\u306e1\u3064\u3067\u3059\u3002nullptr\u3092\u4f7f\u7528\u3057\u305f\u9069\u5207\u306a\u521d\u671f\u5316\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ResourceManager {\nprivate:\n    \/\/ \u30e1\u30f3\u30d0\u30dd\u30a4\u30f3\u30bf\u306e\u521d\u671f\u5316\n    int* data_ptr = nullptr;        \/\/ \u63a8\u5968\uff1a\u5ba3\u8a00\u6642\u306b\u521d\u671f\u5316\n    std::string* str_ptr{nullptr};  \/\/ \u7d71\u4e00\u521d\u671f\u5316\u69cb\u6587\u3082\u6709\u52b9\n\npublic:\n    ResourceManager() {\n        \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u306e\u521d\u671f\u5316\u306f\u65e2\u306b\u884c\u308f\u308c\u3066\u3044\u308b\u305f\u3081\u4e0d\u8981\n    }\n\n    \/\/ \u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u306e\u5b89\u5168\u306a\u89e3\u653e\n    ~ResourceManager() {\n        delete data_ptr;   \/\/ nullptr\u306edelete\u306f\u5b89\u5168\n        delete str_ptr;\n    }\n};<\/pre>\n\n\n\n<p>\u521d\u671f\u5316\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5fc5\u305a\u30dd\u30a4\u30f3\u30bf\u5ba3\u8a00\u6642\u306bnullptr\u3067\u521d\u671f\u5316\u3059\u308b<\/li>\n\n\n\n<li>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u521d\u671f\u5316\u5b50\u30ea\u30b9\u30c8\u3092\u6d3b\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u7d71\u4e00\u521d\u671f\u5316\u69cb\u6587\u3092\u4e00\u8cab\u3057\u3066\u4f7f\u7528\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u95a2\u6570\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u306enullptr\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u95a2\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001nullptr\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u5b89\u5168\u6027\u3068\u53ef\u8aad\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30aa\u30d7\u30b7\u30e7\u30ca\u30eb\u306a\u30dd\u30a4\u30f3\u30bf\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u4f8b\nvoid processData(const Data* data = nullptr) {\n    if (data == nullptr) {\n        \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u51e6\u7406\n        return;\n    }\n    \/\/ \u30c7\u30fc\u30bf\u304c\u3042\u308b\u5834\u5408\u306e\u51e6\u7406\n}\n\n\/\/ \u8907\u6570\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u3092\u6301\u3064\u95a2\u6570\u3067\u306e\u4f7f\u7528\nclass DataProcessor {\npublic:\n    \/\/ \u30dd\u30a4\u30f3\u30bf\u30d0\u30fc\u30b8\u30e7\u30f3\n    void process(int* data) {\n        if (data != nullptr) {\n            \/\/ \u30dd\u30a4\u30f3\u30bf\u7d4c\u7531\u3067\u306e\u30c7\u30fc\u30bf\u51e6\u7406\n        }\n    }\n\n    \/\/ \u53c2\u7167\u30d0\u30fc\u30b8\u30e7\u30f3\n    void process(int&amp; data) {\n        \/\/ \u53c2\u7167\u7d4c\u7531\u3067\u306e\u30c7\u30fc\u30bf\u51e6\u7406\n    }\n};\n\n\/\/ \u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\nint main() {\n    int* ptr = nullptr;\n    DataProcessor processor;\n\n    \/\/ \u5b89\u5168\u306a\u30c1\u30a7\u30c3\u30af\n    processor.process(ptr);  \/\/ nullptr\u306e\u30b1\u30fc\u30b9\u3092\u9069\u5207\u306b\u51e6\u7406\n\n    int value = 42;\n    processor.process(&amp;value);  \/\/ \u6709\u52b9\u306a\u30dd\u30a4\u30f3\u30bf\u3092\u6e21\u3059\n}<\/pre>\n\n\n\n<p>\u95a2\u6570\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u306e\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d5\u30a9\u30eb\u30c8\u5f15\u6570\u3068\u3057\u3066\u306e\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30aa\u30d7\u30b7\u30e7\u30ca\u30eb\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u8868\u73fe\nvoid updateConfig(Config* config = nullptr) {\n    if (config == nullptr) {\n        config = &amp;getDefaultConfig();\n    }\n    \/\/ \u8a2d\u5b9a\u306e\u66f4\u65b0\u51e6\u7406\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u623b\u308a\u5024\u3068\u3057\u3066\u306e\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">int* findElement(const std::vector&lt;int&gt;&amp; vec, int target) {\n    for (size_t i = 0; i &lt; vec.size(); ++i) {\n        if (vec[i] == target) {\n            return &amp;vec[i];\n        }\n    }\n    return nullptr;  \/\/ \u8981\u7d20\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u6761\u4ef6\u5206\u5c90\u3067\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nvoid processIfValid(T* ptr) {\n    if (ptr == nullptr) {\n        throw std::invalid_argument(\"\u7121\u52b9\u306a\u30dd\u30a4\u30f3\u30bf\u304c\u6e21\u3055\u308c\u307e\u3057\u305f\");\n    }\n    \/\/ \u6709\u52b9\u306a\u30dd\u30a4\u30f3\u30bf\u306e\u51e6\u7406\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5168\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-6\">nullptr\u3092\u4f7f\u3063\u305f\u5b89\u5168\u306a\u30b7\u30fc\u30c9\u624b\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">null\u30c1\u30a7\u30c3\u30af\u306e\u52b9\u7387\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>nullptr\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u3001\u52b9\u679c\u7684\u306anull\u30c1\u30a7\u30c3\u30af\u306e\u5b9f\u88c5\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u57fa\u672c\u7684\u306anull\u30c1\u30a7\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\nclass SafeResource {\nprivate:\n    int* data_;\n\npublic:\n    SafeResource() : data_(nullptr) {}\n\n    \/\/ RAII\u539f\u5247\u306b\u57fa\u3065\u304f\u5b89\u5168\u306a\u5b9f\u88c5\n    bool initialize() {\n        try {\n            data_ = new int(0);\n            return true;\n        } catch (const std::bad_alloc&amp;) {\n            data_ = nullptr;  \/\/ \u78ba\u5b9f\u306bnullptr\u3092\u8a2d\u5b9a\n            return false;\n        }\n    }\n\n    \/\/ \u5b89\u5168\u306a\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u306e\u63d0\u4f9b\n    bool getValue(int&amp; out) const {\n        if (data_ == nullptr) {\n            return false;\n        }\n        out = *data_;\n        return true;\n    }\n\n    \/\/ \u4f8b\u5916\u3092\u4f7f\u7528\u3059\u308b\u7248\n    int getValueEx() const {\n        if (data_ == nullptr) {\n            throw std::runtime_error(\"\u672a\u521d\u671f\u5316\u306e\u30ea\u30bd\u30fc\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3057\u305f\");\n        }\n        return *data_;\n    }\n};<\/pre>\n\n\n\n<p>\u52b9\u7387\u7684\u306anull\u30c1\u30a7\u30c3\u30af\u306e\u5b9f\u88c5\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u4f8b\u5916\u51e6\u7406\u3068\u306e\u9069\u5207\u306a\u7d44\u307f\u5408\u308f\u305b<\/li>\n\n\n\n<li>\u6761\u4ef6\u5206\u5c90\u306e\u6700\u9069\u5316\u3092\u8003\u616e\u3057\u305f\u914d\u7f6e<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3068nullptr\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n\n\n\n<p>\u73fe\u4ee3\u306eC++\u3067\u306f\u3001\u751f\u30dd\u30a4\u30f3\u30bf\u3088\u308a\u3082\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u4f7f\u7528\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002nullptr\u3068\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3055\u3089\u306b\u5b89\u5168\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;memory&gt;\n#include &lt;cassert&gt;\n\nclass ResourceManager {\nprivate:\n    \/\/ unique\u30dd\u30a4\u30f3\u30bf\u306e\u4f7f\u7528\n    std::unique_ptr&lt;int&gt; unique_resource_;\n    \/\/ shared\u30dd\u30a4\u30f3\u30bf\u306e\u4f7f\u7528\n    std::shared_ptr&lt;double&gt; shared_resource_;\n\npublic:\n    ResourceManager() : \n        unique_resource_(nullptr),\n        shared_resource_(nullptr) {}\n\n    \/\/ \u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3068nullptr\u306e\u5b89\u5168\u306a\u4f7f\u7528\u4f8b\n    void initializeResources() {\n        \/\/ \u65e2\u5b58\u306e\u30ea\u30bd\u30fc\u30b9\u304c\u3042\u308b\u5834\u5408\u306f\u89e3\u653e\n        unique_resource_.reset();  \/\/ nullptr\u8a2d\u5b9a\u3068\u540c\u7b49\n        shared_resource_.reset();  \/\/ \u53c2\u7167\u30ab\u30a6\u30f3\u30c8\u8003\u616e\u6e08\u307f\u306e\u5b89\u5168\u306a\u89e3\u653e\n\n        try {\n            unique_resource_ = std::make_unique&lt;int&gt;(42);\n            shared_resource_ = std::make_shared&lt;double&gt;(3.14);\n        } catch (...) {\n            \/\/ \u4f8b\u5916\u6642\u306f\u81ea\u52d5\u7684\u306bnullptr\u3068\u306a\u308b\n            assert(unique_resource_ == nullptr);\n            assert(shared_resource_ == nullptr);\n            throw;\n        }\n    }\n\n    \/\/ \u6761\u4ef6\u4ed8\u304d\u64cd\u4f5c\u306e\u5b9f\u88c5\n    bool processIfAvailable() {\n        if (unique_resource_ &amp;&amp; shared_resource_) {\n            \/\/ \u4e21\u65b9\u306e\u30ea\u30bd\u30fc\u30b9\u304c\u5229\u7528\u53ef\u80fd\u306a\u5834\u5408\u306e\u51e6\u7406\n            *unique_resource_ += static_cast&lt;int&gt;(*shared_resource_);\n            return true;\n        }\n        return false;\n    }\n\n    \/\/ weak\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u7528\u3057\u305f\u5b89\u5168\u306a\u53c2\u7167\u7ba1\u7406\n    std::weak_ptr&lt;double&gt; getWeakReference() {\n        return shared_resource_;\n    }\n};\n\n\/\/ \u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\nvoid demonstrateSmartPointerUsage() {\n    \/\/ unique_ptr\u306e\u4f7f\u7528\n    auto unique_data = std::make_unique&lt;int&gt;(100);\n    if (unique_data) {  \/\/ nullptr\u30c1\u30a7\u30c3\u30af\n        \/\/ \u30ea\u30bd\u30fc\u30b9\u304c\u78ba\u4fdd\u3067\u304d\u305f\u5834\u5408\u306e\u51e6\u7406\n    }\n\n    \/\/ shared_ptr\u306e\u4f7f\u7528\n    auto shared_data = std::make_shared&lt;std::string&gt;(\"test\");\n\n    \/\/ weak_ptr\u306b\u3088\u308b\u5faa\u74b0\u53c2\u7167\u306e\u9632\u6b62\n    std::weak_ptr&lt;std::string&gt; weak_data = shared_data;\n\n    if (auto locked = weak_data.lock()) {\n        \/\/ \u6709\u52b9\u306a\u30ea\u30bd\u30fc\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\n        std::cout &lt;&lt; *locked &lt;&lt; std::endl;\n    } else {\n        \/\/ \u30ea\u30bd\u30fc\u30b9\u304c\u65e2\u306b\u89e3\u653e\u3055\u308c\u3066\u3044\u308b\n    }\n}<\/pre>\n\n\n\n<p>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\u306e\u81ea\u52d5\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>unique_ptr\u306b\u3088\u308b\u6392\u4ed6\u7684\u6240\u6709\u6a29\u306e\u7ba1\u7406<\/li>\n\n\n\n<li>shared_ptr\u306b\u3088\u308b\u5171\u6709\u30ea\u30bd\u30fc\u30b9\u306e\u53c2\u7167\u30ab\u30a6\u30f3\u30c8<\/li>\n\n\n\n<li>weak_ptr\u306b\u3088\u308b\u5faa\u74b0\u53c2\u7167\u306e\u9632\u6b62<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>nullptr\u30c1\u30a7\u30c3\u30af\u306e\u7c21\u7565\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">void processResource(const std::unique_ptr&lt;Resource&gt;&amp; res) {\n    if (res) {  \/\/ \u6697\u9ed9\u7684\u306anullptr\u30c1\u30a7\u30c3\u30af\n        res-&gt;process();\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u4f8b\u5916\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">std::shared_ptr&lt;Resource&gt; createResource() {\n    \/\/ make_shared\u4f7f\u7528\u6642\u306e\u4f8b\u5916\u306f\u81ea\u52d5\u7684\u306bnullptr\u3068\u306a\u308b\n    return std::make_shared&lt;Resource&gt;();\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u624b\u6cd5\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u304e\u3064\u3064\u3001\u5b89\u5168\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-9\">\u5b9f\u8df5\u7684\u306anullptr\u306e\u6d3b\u7528\u4f8b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050nullptr\u306e\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u305f\u3081\u306enullptr\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528\u65b9\u6cd5\u3092\u3001\u5b9f\u8df5\u7684\u306a\u4f8b\u3092\u901a\u3058\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;memory&gt;\n#include &lt;vector&gt;\n#include &lt;mutex&gt;\n\n\/\/ \u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u9632\u6b62\u306e\u305f\u3081\u306eRAII\u30d1\u30bf\u30fc\u30f3\u5b9f\u88c5\nclass ResourceGuard {\nprivate:\n    int* resource_;\n    std::mutex mutex_;\n\npublic:\n    ResourceGuard() : resource_(nullptr) {}\n\n    \/\/ \u5b89\u5168\u306a\u30ea\u30bd\u30fc\u30b9\u78ba\u4fdd\n    bool acquire() {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex_);\n        if (resource_ != nullptr) {\n            return false;  \/\/ \u65e2\u306b\u78ba\u4fdd\u6e08\u307f\n        }\n\n        try {\n            resource_ = new int(42);\n            return true;\n        } catch (...) {\n            resource_ = nullptr;  \/\/ \u78ba\u5b9f\u306bnullptr\u8a2d\u5b9a\n            return false;\n        }\n    }\n\n    \/\/ \u5b89\u5168\u306a\u30ea\u30bd\u30fc\u30b9\u89e3\u653e\n    void release() {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex_);\n        delete resource_;\n        resource_ = nullptr;  \/\/ \u4e8c\u91cd\u89e3\u653e\u9632\u6b62\n    }\n\n    ~ResourceGuard() {\n        if (resource_ != nullptr) {\n            delete resource_;\n            \/\/ \u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u306fresource_\u3092nullptr\u306b\u3059\u308b\u5fc5\u8981\u306f\u306a\u3044\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u9632\u6b62\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30ea\u30bd\u30fc\u30b9\u78ba\u4fdd\u76f4\u5f8c\u306enullptr\u30c1\u30a7\u30c3\u30af<\/li>\n\n\n\n<li>\u4f8b\u5916\u767a\u751f\u6642\u306e\u9069\u5207\u306a\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7<\/li>\n\n\n\n<li>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u7a4d\u6975\u7684\u306a\u6d3b\u7528<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u5b89\u5168\u306a\u521d\u671f\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306enullptr\u3092\u4f7f\u7528\u3057\u305f\u5b89\u5168\u306a\u521d\u671f\u5316\u30d1\u30bf\u30fc\u30f3\u3092\u5b9f\u88c5\u4f8b\u3068\u5171\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;atomic&gt;\n#include &lt;thread&gt;\n\nclass ThreadSafeResource {\nprivate:\n    \/\/ \u30a2\u30c8\u30df\u30c3\u30af\u64cd\u4f5c\u53ef\u80fd\u306a\u30dd\u30a4\u30f3\u30bf\n    std::atomic&lt;Resource*&gt; resource_{nullptr};\n    std::mutex initialization_mutex_;\n\npublic:\n    \/\/ \u9045\u5ef6\u521d\u671f\u5316\u30d1\u30bf\u30fc\u30f3\uff08Double-Checked Locking\uff09\n    Resource* getResource() {\n        Resource* current = resource_.load(std::memory_order_acquire);\n        if (current == nullptr) {\n            std::lock_guard&lt;std::mutex&gt; lock(initialization_mutex_);\n            current = resource_.load(std::memory_order_relaxed);\n            if (current == nullptr) {\n                current = new Resource();\n                resource_.store(current, std::memory_order_release);\n            }\n        }\n        return current;\n    }\n\n    \/\/ \u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u89e3\u653e\u51e6\u7406\n    void releaseResource() {\n        Resource* current = resource_.exchange(nullptr);\n        delete current;\n    }\n\n    ~ThreadSafeResource() {\n        releaseResource();\n    }\n};\n\n\/\/ \u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\nvoid demonstrateThreadSafeUsage() {\n    ThreadSafeResource resource;\n\n    \/\/ \u8907\u6570\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u306e\u5b89\u5168\u306a\u30a2\u30af\u30bb\u30b9\n    auto worker = [&amp;resource](int id) {\n        if (Resource* ptr = resource.getResource()) {\n            \/\/ \u30ea\u30bd\u30fc\u30b9\u304c\u5229\u7528\u53ef\u80fd\u306a\u5834\u5408\u306e\u51e6\u7406\n            ptr-&gt;process();\n        } else {\n            \/\/ \u521d\u671f\u5316\u5931\u6557\u6642\u306e\u51e6\u7406\n        }\n    };\n\n    \/\/ \u8907\u6570\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u5b9f\u884c\n    std::vector&lt;std::thread&gt; threads;\n    for (int i = 0; i &lt; 4; ++i) {\n        threads.emplace_back(worker, i);\n    }\n\n    \/\/ \u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u5f85\u3061\n    for (auto&amp; t : threads) {\n        t.join();\n    }\n}<\/pre>\n\n\n\n<p>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u5b9f\u88c5\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30a2\u30c8\u30df\u30c3\u30af\u64cd\u4f5c\u306e\u9069\u5207\u306a\u4f7f\u7528<\/li>\n\n\n\n<li>\u4e8c\u91cd\u521d\u671f\u5316\u306e\u9632\u6b62<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30d0\u30ea\u30a2\u306e\u8003\u616e<\/li>\n\n\n\n<li>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u9632\u6b62<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u4f8b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u7279\u306b\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5927\u898f\u6a21\u306a\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0<\/li>\n\n\n\n<li>\u9ad8\u8ca0\u8377\u306a\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/li>\n\n\n\n<li>\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u30b7\u30b9\u30c6\u30e0\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8981\u4ef6\u306e\u53b3\u3057\u3044\u74b0\u5883<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-12\">nullptr\u306b\u95a2\u3059\u308b\u4e00\u822c\u7684\u306a\u3082\u306e\u3068\u6ce8\u610f\u70b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">NULL\u3068nullptr\u306e\u5fae\u5999\u306a\u9055\u3044<\/h3>\n\n\n\n<p>NULL\u3068nullptr\u306e\u9055\u3044\u306f\u3001\u5358\u306a\u308b\u69cb\u6587\u306e\u9055\u3044\u4ee5\u4e0a\u306b\u91cd\u8981\u306a\u610f\u5473\u3092\u6301\u3061\u307e\u3059\u3002\u4e21\u8005\u306e\u9055\u3044\u3092\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ NULL\u3068nullptr\u306e\u52d5\u4f5c\u306e\u9055\u3044\u3092\u793a\u3059\u4f8b\nvoid foo(int x) {\n    std::cout &lt;&lt; \"\u6574\u6570\u7248\u304c\u547c\u3070\u308c\u307e\u3057\u305f: \" &lt;&lt; x &lt;&lt; std::endl;\n}\n\nvoid foo(char* p) {\n    std::cout &lt;&lt; \"\u30dd\u30a4\u30f3\u30bf\u7248\u304c\u547c\u3070\u308c\u307e\u3057\u305f\" &lt;&lt; std::endl;\n}\n\nint main() {\n    foo(NULL);     \/\/ \u6574\u6570\u7248\u304c\u547c\u3070\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\n    foo(nullptr);  \/\/ \u78ba\u5b9f\u306b\u30dd\u30a4\u30f3\u30bf\u7248\u304c\u547c\u3070\u308c\u308b\n\n    \/\/ \u578b\u5909\u63db\u306e\u9055\u3044\n    int* p1 = NULL;      \/\/ \u6697\u9ed9\u306e\u578b\u5909\u63db\uff08\u8b66\u544a\u306e\u53ef\u80fd\u6027\u3042\u308a\uff09\n    int* p2 = nullptr;   \/\/ \u81ea\u7136\u306a\u578b\u5909\u63db\n\n    \/\/ \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u306e\u52d5\u4f5c\n    static_assert(std::is_null_pointer&lt;decltype(nullptr)&gt;::value, \"nullptr\u30c1\u30a7\u30c3\u30af\");\n    \/\/ static_assert(std::is_null_pointer&lt;decltype(NULL)&gt;::value, \"NULL\u30c1\u30a7\u30c3\u30af\"); \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\n}<\/pre>\n\n\n\n<p>\u91cd\u8981\u306a\u9055\u3044\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u578b\u5b89\u5168\u6027<\/li>\n\n\n\n<li>\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u89e3\u6c7a<\/li>\n\n\n\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u306e\u6271\u3044<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6700\u9069\u5316\u6a5f\u4f1a<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u8b66\u544a\u3092\u6d3b\u7528\u3057\u305f\u554f\u984c\u306e\u65e9\u671f\u767a\u898b<\/h3>\n\n\n\n<p>\u73fe\u4ee3\u306e\u30b3\u30f3\u30d1\u30a4\u30e9\u306f\u3001nullptr\u306e\u8aa4\u7528\u306b\u95a2\u3059\u308b\u512a\u308c\u305f\u8b66\u544a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u591a\u304f\u306e\u554f\u984c\u3092\u4e8b\u524d\u306b\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30b3\u30f3\u30d1\u30a4\u30e9\u8b66\u544a\u306e\u4f8b\u3068\u5bfe\u51e6\u65b9\u6cd5\nclass SafePointer {\nprivate:\n    int* ptr_;\n\npublic:\n    SafePointer() : ptr_(nullptr) {}  \/\/ \u660e\u793a\u7684\u306a\u521d\u671f\u5316\n\n    void unsafe_set(int* p) {\n        \/\/ \u8b66\u544a: \u5f15\u6570\u306enull\u30c1\u30a7\u30c3\u30af\u304c\u884c\u308f\u308c\u3066\u3044\u306a\u3044\n        ptr_ = p;  \n    }\n\n    void safe_set(int* p) {\n        if (p == nullptr) {\n            throw std::invalid_argument(\"\u7121\u52b9\u306a\u30dd\u30a4\u30f3\u30bf\");\n        }\n        ptr_ = p;\n    }\n\n    \/\/ \u8b66\u544a: \u623b\u308a\u5024\u306enull\u30c1\u30a7\u30c3\u30af\u3092\u5f37\u5236\n    [[nodiscard]] int* get() const {\n        return ptr_;\n    }\n};\n\n\/\/ \u30b3\u30f3\u30d1\u30a4\u30e9\u8b66\u544a\u3092\u6d3b\u7528\u3057\u305f\u5b89\u5168\u306a\u5b9f\u88c5\nvoid demonstrateWarnings() {\n    SafePointer sp;\n\n    \/\/ \u8b66\u544a: \u672a\u521d\u671f\u5316\u30dd\u30a4\u30f3\u30bf\u306e\u4f7f\u7528\n    int* raw_ptr;  \n    sp.unsafe_set(raw_ptr);  \/\/ \u5371\u967a\u306a\u64cd\u4f5c\n\n    \/\/ \u8b66\u544a: \u623b\u308a\u5024\u306e\u7121\u8996\n    sp.get();  \/\/ [[nodiscard]]\u5c5e\u6027\u306b\u3088\u308a\u8b66\u544a\n\n    \/\/ \u63a8\u5968\u3055\u308c\u308b\u5b9f\u88c5\n    if (int* ptr = sp.get()) {\n        \/\/ \u30dd\u30a4\u30f3\u30bf\u304c\u6709\u52b9\u306a\u5834\u5408\u306e\u51e6\u7406\n    }\n}<\/pre>\n\n\n\n<p>\u30b3\u30f3\u30d1\u30a4\u30e9\u8b66\u544a\u306e\u6d3b\u7528\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8b66\u544a\u30ec\u30d9\u30eb\u306e\u8a2d\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30b3\u30f3\u30d1\u30a4\u30e9\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u4f8b\n\/\/ MSVC: \/W4\n\/\/ GCC\/Clang: -Wall -Wextra -Wpedantic<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u8b66\u544a\u3092\u9632\u3050\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u660e\u793a\u7684\u306anullptr\u521d\u671f\u5316<\/li>\n\n\n\n<li>[[nodiscard]]\u5c5e\u6027\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>\u623b\u308a\u5024\u306e\u78ba\u5b9f\u306a\u30c1\u30a7\u30c3\u30af<\/li>\n\n\n\n<li>\u5f15\u6570\u306e\u59a5\u5f53\u6027\u691c\u8a3c<\/li>\n<\/ul>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u3068\u306e\u9023\u643a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u306e\u8b66\u544a\u4f8b\nvoid potentialNullDereference() {\n    int* ptr = nullptr;\n    \/\/ \u8b66\u544a: Potential null pointer dereference\n    *ptr = 42;  \/\/ \u5371\u967a\u306a\u64cd\u4f5c\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6ce8\u610f\u70b9\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5168\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-15\">\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u306enullptr\u79fb\u884c\u30ac\u30a4\u30c9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u6bb5\u968e\u7684\u306a\u79fb\u884c\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u3092nullptr\u3092\u4f7f\u7528\u3059\u308b\u30e2\u30c0\u30f3\u306a\u5b9f\u88c5\u306b\u79fb\u884c\u3059\u308b\u969b\u306e\u3001\u52b9\u679c\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u79fb\u884c\u524d\u306e\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u4f8b\nclass LegacyResource {\nprivate:\n    int* data;\npublic:\n    LegacyResource() : data(NULL) {}  \/\/ \u53e4\u3044\u30b9\u30bf\u30a4\u30eb\n    \/\/ ...\n};\n\n\/\/ \u6bb5\u968e\u7684\u306a\u79fb\u884c\u306e\u4f8b\n#if __cplusplus &gt;= 201103L\n    #define NULLPTR nullptr\n#else\n    #define NULLPTR NULL\n#endif\n\n\/\/ \u79fb\u884c\u7528\u306e\u4e2d\u9593\u5b9f\u88c5\nclass TransitionalResource {\nprivate:\n    int* data;\npublic:\n    TransitionalResource() : data(NULLPTR) {}  \/\/ \u6761\u4ef6\u4ed8\u304d\u30b3\u30f3\u30d1\u30a4\u30eb\n\n    \/\/ \u79fb\u884c\u671f\u9593\u4e2d\u306eNULL\u30c1\u30a7\u30c3\u30af\n    bool isValid() const {\n        #if __cplusplus &gt;= 201103L\n            return data != nullptr;\n        #else\n            return data != NULL;\n        #endif\n    }\n};\n\n\/\/ \u6700\u7d42\u7684\u306a\u5b9f\u88c5\nclass ModernResource {\nprivate:\n    int* data = nullptr;  \/\/ \u30e2\u30c0\u30f3\u306a\u521d\u671f\u5316\npublic:\n    ModernResource() = default;  \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u5341\u5206\n\n    bool isValid() const {\n        return data != nullptr;\n    }\n};<\/pre>\n\n\n\n<p>\u6bb5\u968e\u7684\u306a\u79fb\u884c\u306e\u624b\u9806\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u306e\u5206\u6790<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NULL\u306e\u4f7f\u7528\u7b87\u6240\u306e\u7279\u5b9a<\/li>\n\n\n\n<li>\u5f71\u97ff\u7bc4\u56f2\u306e\u8a55\u4fa1<\/li>\n\n\n\n<li>\u512a\u5148\u9806\u4f4d\u306e\u6c7a\u5b9a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u79fb\u884c\u8a08\u753b\u306e\u7acb\u6848<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c1\u30fc\u30e0\u5185\u3067\u306e\u5408\u610f\u5f62\u6210<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u6226\u7565\u306e\u7b56\u5b9a<\/li>\n\n\n\n<li>\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u8a08\u753b\u306e\u6e96\u5099<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9f\u88c5\u306e\u79fb\u884c<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u8b66\u544a\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u306e\u5c0e\u5165<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u5f37\u5316<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u79fb\u884c\u6642\u306e\u4e92\u63db\u6027\u7dad\u6301\u306e\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u4e92\u63db\u6027\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u306e\u79fb\u884c\u4f8b\ntemplate&lt;typename T&gt;\nclass CompatiblePointer {\nprivate:\n    T* ptr_;\n\npublic:\n    \/\/ \u8907\u6570\u306e\u521d\u671f\u5316\u65b9\u6cd5\u3092\u30b5\u30dd\u30fc\u30c8\n    CompatiblePointer() : ptr_(nullptr) {}\n\n    #ifdef SUPPORT_LEGACY_NULL\n    CompatiblePointer(std::nullptr_t) : ptr_(nullptr) {}\n    CompatiblePointer(int null_value) {\n        assert(null_value == 0 &amp;&amp; \"Invalid NULL value\");\n        ptr_ = nullptr;\n    }\n    #endif\n\n    \/\/ \u578b\u5b89\u5168\u306a\u6bd4\u8f03\u6f14\u7b97\u5b50\n    bool operator==(std::nullptr_t) const {\n        return ptr_ == nullptr;\n    }\n\n    \/\/ \u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u3068\u306e\u4e92\u63db\u6027\u7dad\u6301\n    operator bool() const {\n        return ptr_ != nullptr;\n    }\n};\n\n\/\/ \u79fb\u884c\u652f\u63f4\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\nnamespace MigrationUtils {\n    template&lt;typename T&gt;\n    bool isNullPointer(T* ptr) {\n        return ptr == nullptr;\n    }\n\n    template&lt;typename T&gt;\n    void assertNotNull(T* ptr, const char* message) {\n        assert(ptr != nullptr &amp;&amp; message);\n    }\n}<\/pre>\n\n\n\n<p>\u4e92\u63db\u6027\u7dad\u6301\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6761\u4ef6\u5206\u5c90<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#if defined(LEGACY_SUPPORT) &amp;&amp; !defined(__cpp_nullptr)\n    #define NULLPTR NULL\n#else\n    #define NULLPTR nullptr\n#endif<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u578b\u5909\u63db\u306e\u5b89\u5168\u6027\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nT* safeNullCheck(T* ptr) {\n    return ptr == nullptr ? nullptr : ptr;\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u7dad\u6301<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">void testPointerCompatibility() {\n    \/\/ \u4e21\u65b9\u306e\u30b1\u30fc\u30b9\u3092\u30c6\u30b9\u30c8\n    assert(safeNullCheck(NULLPTR) == nullptr);\n    #ifdef LEGACY_SUPPORT\n    assert(safeNullCheck(NULL) == nullptr);\n    #endif\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u79fb\u884c\u624b\u9806\u3068\u4e92\u63db\u6027\u7dad\u6301\u306e\u65b9\u6cd5\u3092\u9069\u5207\u306b\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3067\u3001\u5b89\u5168\u304b\u3064\u52b9\u7387\u7684\u306a\u79fb\u884c\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":{"0":"post-2044","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-cpp","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2044","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2044"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2044\/revisions"}],"predecessor-version":[{"id":2045,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2044\/revisions\/2045"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}