{"id":31369,"date":"2023-07-20T22:44:28","date_gmt":"2023-07-20T19:14:28","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/dynamically-allocating-2d-arrays-in-c-36c5\/"},"modified":"2023-07-20T22:44:28","modified_gmt":"2023-07-20T19:14:28","slug":"dynamically-allocating-2d-arrays-in-c-36c5","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/dynamically-allocating-2d-arrays-in-c-36c5\/","title":{"rendered":"\u062a\u062e\u0635\u06cc\u0635 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0647\u0627\u06cc \u062f\u0648 \u0628\u0639\u062f\u06cc \u062f\u0631 C++"},"content":{"rendered":"<div data-article-id=\"1543367\" id=\"article-body\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/dynamically-allocating-2d-arrays-in-c-36c5\/#%D9%85%D8%B9%D8%B1%D9%81%DB%8C\" >\u0645\u0639\u0631\u0641\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/dynamically-allocating-2d-arrays-in-c-36c5\/#%DB%8C%DA%A9_%DA%A9%D9%84%D8%A7%D8%B3_%D9%85%D8%A7%D8%AA%D8%B1%DB%8C%D8%B3_%D8%AF%D9%88_%D8%A8%D8%B9%D8%AF%DB%8C_%DA%A9%D9%88%DA%86%DA%A9\" >\u06cc\u06a9 \u06a9\u0644\u0627\u0633 \u0645\u0627\u062a\u0631\u06cc\u0633 \u062f\u0648 \u0628\u0639\u062f\u06cc \u06a9\u0648\u0686\u06a9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/dynamically-allocating-2d-arrays-in-c-36c5\/#%D8%AF%D8%B3%D8%AA%D8%B1%D8%B3%DB%8C_%D8%A8%D9%87_%D8%B9%D9%86%D8%B5%D8%B1\" >\u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0639\u0646\u0635\u0631<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/dynamically-allocating-2d-arrays-in-c-36c5\/#%DA%A9%D9%BE%DB%8C%D8%8C_%D8%A7%D9%86%D8%AA%D9%82%D8%A7%D9%84_%D9%88_%D8%AA%D8%B9%DB%8C%DB%8C%D9%86_%D8%AA%DA%A9%D9%84%DB%8C%D9%81\" >\u06a9\u067e\u06cc\u060c \u0627\u0646\u062a\u0642\u0627\u0644 \u0648 \u062a\u0639\u06cc\u06cc\u0646 \u062a\u06a9\u0644\u06cc\u0641<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/dynamically-allocating-2d-arrays-in-c-36c5\/#%D9%BE%D8%A7%DB%8C%D8%A7%D9%86_%D9%84%D9%85%D8%B3\" >\u067e\u0627\u06cc\u0627\u0646 \u0644\u0645\u0633<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/dynamically-allocating-2d-arrays-in-c-36c5\/#%D9%86%D8%AA%DB%8C%D8%AC%D9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D8%B9%D8%B1%D9%81%DB%8C\"><\/span>\n<p>  \u0645\u0639\u0631\u0641\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u0627 \u0641\u0631\u0636 \u0627\u06cc\u0646\u06a9\u0647 \u00ab\u062a\u062e\u0635\u06cc\u0635 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc \u062f\u0648\u0628\u0639\u062f\u06cc \u0628\u0647\u200c\u0637\u0648\u0631 \u0645\u0624\u062b\u0631 (\u0648 \u062f\u0631\u0633\u062a!)\u00bb \u0631\u0627 \u062f\u0631 \u0632\u0628\u0627\u0646 C \u062e\u0648\u0627\u0646\u062f\u0647\u200c\u0627\u06cc\u062f\u060c \u0622\u062e\u0631\u06cc\u0646 \u067e\u0627\u0631\u0627\u06af\u0631\u0627\u0641 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0627\u0634\u0627\u0631\u0647 \u06a9\u0631\u062f:<\/p>\n<blockquote>\n<p>\u062f\u0631 C++\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0646\u0634\u0627\u0646\u06af\u0631\u0647\u0627\u06cc \u0631\u062f\u06cc\u0641 \u0631\u0627 \u062d\u0630\u0641 \u06a9\u0646\u06cc\u062f \u0648 \u0647\u0645\u0686\u0646\u0627\u0646 \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>[][]<\/code> \u0646\u062d\u0648 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0642\u0627\u0644\u0628 \u0647\u0627 \u0648 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f <code>operator[]()<\/code>\u060c \u0627\u0645\u0627 \u0627\u06cc\u0646 \u06cc\u06a9 \u062f\u0627\u0633\u062a\u0627\u0646 \u0628\u0631\u0627\u06cc \u0632\u0645\u0627\u0646 \u062f\u06cc\u06af\u0631\u06cc \u0627\u0633\u062a.<\/p>\n<\/blockquote>\n<p>\u0622\u0646 \u0632\u0645\u0627\u0646 \u0641\u0631\u0627 \u0631\u0633\u06cc\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%DB%8C%DA%A9_%DA%A9%D9%84%D8%A7%D8%B3_%D9%85%D8%A7%D8%AA%D8%B1%DB%8C%D8%B3_%D8%AF%D9%88_%D8%A8%D8%B9%D8%AF%DB%8C_%DA%A9%D9%88%DA%86%DA%A9\"><\/span>\n<p>  \u06cc\u06a9 \u06a9\u0644\u0627\u0633 \u0645\u0627\u062a\u0631\u06cc\u0633 \u062f\u0648 \u0628\u0639\u062f\u06cc \u06a9\u0648\u0686\u06a9<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 C++ \u0645\u06cc \u062a\u0648\u0627\u0646 \u06cc\u06a9 \u06a9\u0644\u0627\u0633 \u0645\u0627\u062a\u0631\u06cc\u0633 \u062f\u0648 \u0628\u0639\u062f\u06cc \u06a9\u0648\u0686\u06a9 \u0646\u0648\u0634\u062a.  \u06cc\u06a9 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0628\u062f\u0648\u0646 \u0627\u0633\u062a\u062e\u0648\u0627\u0646 \u0639\u0628\u0627\u0631\u062a \u0627\u0633\u062a \u0627\u0632:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code><span class=\"k\">template<\/span><span class=\"o\">&lt;<\/span><span class=\"k\">typename<\/span> <span class=\"nc\">T<\/span><span class=\"p\">&gt;<\/span>\n<span class=\"k\">class<\/span> <span class=\"nc\">matrix2d<\/span> <span class=\"p\">{<\/span>\n<span class=\"nl\">public:<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">T<\/span> <span class=\"n\">value_type<\/span><span class=\"p\">;<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">value_type<\/span><span class=\"o\">*<\/span> <span class=\"n\">pointer<\/span><span class=\"p\">;<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">value_type<\/span> <span class=\"k\">const<\/span><span class=\"o\">*<\/span> <span class=\"n\">const_pointer<\/span><span class=\"p\">;<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">value_type<\/span><span class=\"o\">&amp;<\/span> <span class=\"n\">reference<\/span><span class=\"p\">;<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">value_type<\/span> <span class=\"k\">const<\/span><span class=\"o\">&amp;<\/span> <span class=\"n\">const_reference<\/span><span class=\"p\">;<\/span>\n\n    <span class=\"k\">typedef<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"kt\">size_t<\/span> <span class=\"n\">size_type<\/span><span class=\"p\">;<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"kt\">ptrdiff_t<\/span> <span class=\"n\">difference_type<\/span><span class=\"p\">;<\/span>\n\n    <span class=\"n\">matrix2d<\/span><span class=\"p\">(<\/span> <span class=\"n\">size_type<\/span> <span class=\"n\">idim<\/span><span class=\"p\">,<\/span> <span class=\"n\">size_type<\/span> <span class=\"n\">jdim<\/span> <span class=\"p\">)<\/span> <span class=\"o\">:<\/span>\n        <span class=\"n\">_dim<\/span><span class=\"p\">{<\/span> <span class=\"n\">idim<\/span><span class=\"p\">,<\/span> <span class=\"n\">jdim<\/span> <span class=\"p\">},<\/span>\n        <span class=\"n\">_elem<\/span><span class=\"p\">{<\/span> <span class=\"n\">alloc<\/span><span class=\"p\">(<\/span> <span class=\"n\">_dim<\/span> <span class=\"p\">)<\/span> <span class=\"p\">}<\/span>\n    <span class=\"p\">{<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"o\">~<\/span><span class=\"n\">matrix2d<\/span><span class=\"p\">()<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">delete<\/span><span class=\"p\">[]<\/span> <span class=\"n\">_elem<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">pointer<\/span> <span class=\"k\">operator<\/span><span class=\"p\">[](<\/span> <span class=\"n\">size_type<\/span> <span class=\"n\">row<\/span> <span class=\"p\">)<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">_elem<\/span><span class=\"p\">[<\/span> <span class=\"n\">row<\/span> <span class=\"o\">*<\/span> <span class=\"n\">_dim<\/span><span class=\"p\">.<\/span><span class=\"n\">first<\/span> <span class=\"p\">];<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">const_pointer<\/span> <span class=\"k\">operator<\/span><span class=\"p\">[](<\/span> <span class=\"n\">size_type<\/span> <span class=\"n\">row<\/span> <span class=\"p\">)<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">_elem<\/span><span class=\"p\">[<\/span> <span class=\"n\">row<\/span> <span class=\"o\">*<\/span> <span class=\"n\">_dim<\/span><span class=\"p\">.<\/span><span class=\"n\">first<\/span> <span class=\"p\">];<\/span>\n    <span class=\"p\">}<\/span>\n\n<span class=\"nl\">private:<\/span>\n    <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">pair<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">size_type<\/span><span class=\"p\">,<\/span><span class=\"n\">size_type<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">_dim<\/span><span class=\"p\">;<\/span>\n    <span class=\"n\">pointer<\/span> <span class=\"n\">_elem<\/span><span class=\"p\">;<\/span>\n\n    <span class=\"k\">static<\/span> <span class=\"n\">pointer<\/span> <span class=\"n\">alloc<\/span><span class=\"p\">(<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">pair<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">size_type<\/span><span class=\"p\">,<\/span><span class=\"n\">size_type<\/span><span class=\"o\">&gt;<\/span> <span class=\"k\">const<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">dim<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"k\">new<\/span> <span class=\"n\">value_type<\/span><span class=\"p\">[<\/span> <span class=\"n\">dim<\/span><span class=\"p\">.<\/span><span class=\"n\">first<\/span> <span class=\"o\">*<\/span> <span class=\"n\">dim<\/span><span class=\"p\">.<\/span><span class=\"n\">second<\/span> <span class=\"p\">];<\/span>\n    <span class=\"p\">}<\/span>\n<span class=\"p\">};<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<blockquote>\n<p>\u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u06cc \u0627\u0632 <code>typedef<\/code>s \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0635\u0641\u062d\u0647 \u062c\u0648\u0634 \u0647\u0633\u062a\u0646\u062f \u062a\u0627 \u06a9\u0644\u0627\u0633 \u0628\u0647 \u062e\u0648\u0628\u06cc \u0628\u0627 STL \u0628\u0627\u0632\u06cc \u06a9\u0646\u062f.<\/p>\n<\/blockquote>\n<p>\u0628\u0631\u062e\u0644\u0627\u0641 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc C\u060c \u06a9\u0644\u0627\u0633 \u0645\u0627\u062a\u0631\u06cc\u0633 2 \u0628\u0639\u062f\u06cc \u0627\u0646\u062f\u0627\u0632\u0647 \u0631\u062f\u06cc\u0641 \u062e\u0648\u062f \u0631\u0627 \u0628\u0647 \u062e\u0627\u0637\u0631 \u0645\u06cc \u0622\u0648\u0631\u062f &#8211; \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u06a9\u0647 \u06cc\u06a9 \u0628\u0627\u0631 \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f <code>operator[]()<\/code> \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0627\u0641\u0633\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <em>ith<\/em> \u0631\u062f\u06cc\u0641:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code>    <span class=\"n\">pointer<\/span> <span class=\"k\">operator<\/span><span class=\"p\">[](<\/span> <span class=\"n\">size_type<\/span> <span class=\"n\">row<\/span> <span class=\"p\">)<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">_elem<\/span><span class=\"p\">[<\/span> <span class=\"n\">row<\/span> <span class=\"o\">*<\/span> <span class=\"n\">_dim<\/span><span class=\"p\">.<\/span><span class=\"n\">first<\/span> <span class=\"p\">];<\/span>\n    <span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0627\u0632 \u0627\u06cc\u0646 \u0631\u0648 \u062f\u0631 \u06a9\u062f\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code><span class=\"n\">matrix2d<\/span><span class=\"o\">&lt;<\/span><span class=\"kt\">int<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">m2d<\/span><span class=\"p\">{<\/span> <span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span> <span class=\"p\">};<\/span>\n<span class=\"n\">m2d<\/span><span class=\"p\">[<\/span><span class=\"n\">i<\/span><span class=\"p\">][<\/span><span class=\"n\">j<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0631\u0627 <code>[i]<\/code> \u0627\u0636\u0627\u0641\u0647 \u0628\u0627\u0631 \u0631\u0627 \u0641\u0631\u0627 \u0645\u06cc \u062e\u0648\u0627\u0646\u062f <code>operator[]()<\/code> \u06a9\u0647 \u06cc\u06a9 \u0627\u0634\u0627\u0631\u0647 \u06af\u0631 \u0631\u0627 \u0628\u0647 \u0634\u0631\u0648\u0639 \u0628\u0627\u0632 \u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f <em>ith<\/em> \u0631\u062f\u06cc\u0641 \u062f\u0631 \u0639\u0646\u0627\u0635\u0631 \u0628\u0647 \u0647\u0645 \u067e\u06cc\u0648\u0633\u062a\u0647 \u0628\u0647 \u062a\u0631\u062a\u06cc\u0628 \u0631\u062f\u06cc\u0641 \u0627\u0635\u0644\u06cc \u06a9\u0647 \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0646\u0634\u062f\u0647 \u0627\u0633\u062a <code>[j]<\/code> \u0628\u0647 <em>jth<\/em> \u0639\u0646\u0635\u0631 (\u0627\u0632 <em>ith<\/em> \u0631\u062f\u06cc\u0641 &#8220;\u0632\u06cc\u0631 \u0622\u0631\u0627\u06cc\u0647&#8221;).  \u0628\u0631 \u062e\u0644\u0627\u0641 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc C\u060c \u0647\u06cc\u0686 \u0627\u0634\u0627\u0631\u0647 \u06af\u0631 \u0631\u062f\u06cc\u0641 \u0627\u0636\u0627\u0641\u06cc \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0646\u06cc\u0633\u062a\u060c \u0632\u06cc\u0631\u0627 \u0622\u0646\u0647\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%D8%AF%D8%B3%D8%AA%D8%B1%D8%B3%DB%8C_%D8%A8%D9%87_%D8%B9%D9%86%D8%B5%D8%B1\"><\/span>\n<p>  \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0639\u0646\u0635\u0631<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u062e\u0637\u0627\u0631 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0647\u0631 \u0639\u0646\u0635\u0631 \u0645\u0627\u062a\u0631\u06cc\u0633 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u062f\u0633\u062a\u0631\u0633\u06cc \u062f\u0627\u0631\u062f <code>[i][j]<\/code> \u0627\u06a9\u0646\u0648\u0646 \u0628\u0647 \u0636\u0631\u0628\u06cc \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f \u06a9\u0647 \u062f\u0631 \u0627\u062c\u0631\u0627\u06cc C \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0646\u0628\u0648\u062f.  \u0645\u0627\u0646\u0646\u062f \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0686\u06cc\u0632\u0647\u0627\u06cc \u062f\u06cc\u06af\u0631 \u062f\u0631 \u0639\u0644\u0648\u0645 \u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631\u060c \u0627\u06cc\u0646 \u06cc\u06a9 \u0645\u0639\u0627\u0645\u0644\u0647 \u0627\u0633\u062a.  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0627\u06cc\u0646 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0627\u0632 \u0686\u0646\u062f \u0637\u0631\u06cc\u0642 \u06a9\u0627\u0647\u0634 \u062f\u0627\u062f.  \u0628\u0647 \u062c\u0627\u06cc \u0646\u0648\u0634\u062a\u0646:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code><span class=\"k\">for<\/span> <span class=\"p\">(<\/span> <span class=\"kt\">size_t<\/span> <span class=\"n\">i<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">3<\/span><span class=\"p\">;<\/span> <span class=\"o\">++<\/span><span class=\"n\">i<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n    <span class=\"k\">for<\/span> <span class=\"p\">(<\/span> <span class=\"kt\">size_t<\/span> <span class=\"n\">j<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">j<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">3<\/span><span class=\"p\">;<\/span> <span class=\"o\">++<\/span><span class=\"n\">i<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n        <span class=\"c1\">\/\/ ... m2d[i][j] ...<\/span>\n    <span class=\"p\">}<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0627\u06cc\u0646 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0646\u0648\u0634\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code><span class=\"k\">for<\/span> <span class=\"p\">(<\/span> <span class=\"kt\">size_t<\/span> <span class=\"n\">i<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">3<\/span><span class=\"p\">;<\/span> <span class=\"o\">++<\/span><span class=\"n\">i<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n    <span class=\"k\">auto<\/span> <span class=\"n\">row<\/span> <span class=\"o\">=<\/span> <span class=\"n\">m2d<\/span><span class=\"p\">[<\/span><span class=\"n\">i<\/span><span class=\"p\">];<\/span>\n    <span class=\"k\">for<\/span> <span class=\"p\">(<\/span> <span class=\"kt\">size_t<\/span> <span class=\"n\">j<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">j<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">3<\/span><span class=\"p\">;<\/span> <span class=\"o\">++<\/span><span class=\"n\">i<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n        <span class=\"c1\">\/\/ ... row[j] ...<\/span>\n    <span class=\"p\">}<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u062a\u0646\u0647\u0627 \u06cc\u06a9 \u0636\u0631\u0628 \u062f\u0631 \u0647\u0631 \u0631\u062f\u06cc\u0641 \u0628\u0647 \u062c\u0627\u06cc \u0647\u0631 \u0639\u0646\u0635\u0631 \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0631\u0627\u0647 \u062f\u06cc\u06af\u0631 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u0627\u06cc\u0646 \u0645\u0634\u06a9\u0644\u060c \u0627\u0641\u0632\u0648\u062f\u0646 iterator boilerplate \u0628\u0647 \u06a9\u0644\u0627\u0633 \u0627\u0633\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code><span class=\"k\">class<\/span> <span class=\"nc\">matrix2d<\/span> <span class=\"p\">{<\/span>\n<span class=\"nl\">public:<\/span>\n    <span class=\"c1\">\/\/ ...<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">pointer<\/span> <span class=\"n\">iterator<\/span><span class=\"p\">;<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">const_pointer<\/span> <span class=\"n\">const_iterator<\/span><span class=\"p\">;<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">reverse_iterator<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">iterator<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">reverse_iterator<\/span><span class=\"p\">;<\/span>\n    <span class=\"k\">typedef<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">reverse_iterator<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">const_iterator<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">reverse_const_iterator<\/span><span class=\"p\">;<\/span>\n    <span class=\"c1\">\/\/ ...<\/span>\n\n    <span class=\"n\">size_type<\/span> <span class=\"n\">size<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">_dim<\/span><span class=\"p\">.<\/span><span class=\"n\">first<\/span> <span class=\"o\">*<\/span> <span class=\"n\">_dim<\/span><span class=\"p\">.<\/span><span class=\"n\">second<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">iterator<\/span> <span class=\"n\">begin<\/span><span class=\"p\">()<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">_elem<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">const_iterator<\/span> <span class=\"n\">cbegin<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">_elem<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">const_iterator<\/span> <span class=\"n\">begin<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">cbegin<\/span><span class=\"p\">();<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">reverse_iterator<\/span> <span class=\"n\">rbegin<\/span><span class=\"p\">()<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">reverse_iterator<\/span><span class=\"p\">{<\/span> <span class=\"n\">end<\/span><span class=\"p\">()<\/span> <span class=\"p\">};<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">const_reverse_iterator<\/span> <span class=\"n\">crbegin<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">const_reverse_iterator<\/span><span class=\"p\">{<\/span> <span class=\"n\">cend<\/span><span class=\"p\">()<\/span> <span class=\"p\">};<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">const_reverse_iterator<\/span> <span class=\"n\">rbegin<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">crbegin<\/span><span class=\"p\">();<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">iterator<\/span> <span class=\"n\">end<\/span><span class=\"p\">()<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">_elem<\/span> <span class=\"o\">+<\/span> <span class=\"n\">size<\/span><span class=\"p\">();<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">const_iterator<\/span> <span class=\"n\">cend<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">_elem<\/span> <span class=\"o\">+<\/span> <span class=\"n\">size<\/span><span class=\"p\">();<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">const_iterator<\/span> <span class=\"n\">end<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">cend<\/span><span class=\"p\">();<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">reverse_iterator<\/span> <span class=\"n\">rend<\/span><span class=\"p\">()<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">reverse_iterator<\/span><span class=\"p\">{<\/span> <span class=\"n\">begin<\/span><span class=\"p\">()<\/span> <span class=\"p\">};<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">const_reverse_iterator<\/span> <span class=\"n\">crend<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">const_reverse_iterator<\/span><span class=\"p\">{<\/span> <span class=\"n\">cbegin<\/span><span class=\"p\">()<\/span> <span class=\"p\">};<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">const_reverse_iterator<\/span> <span class=\"n\">rend<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">crend<\/span><span class=\"p\">();<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"c1\">\/\/ ...<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code><span class=\"k\">for<\/span> <span class=\"p\">(<\/span> <span class=\"k\">auto<\/span> <span class=\"n\">elem<\/span> <span class=\"o\">:<\/span> <span class=\"n\">m2d<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n    <span class=\"c1\">\/\/ ... elem ...<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0628\u0631\u0627\u06cc \u062a\u06a9\u0631\u0627\u0631 \u0628\u0631 \u0631\u0648\u06cc \u0647\u0645\u0647 \u0639\u0646\u0627\u0635\u0631 \u0628\u062f\u0648\u0646 \u0636\u0631\u0628 \u0627\u0646\u062c\u0627\u0645 \u0634\u0648\u062f.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%DA%A9%D9%BE%DB%8C%D8%8C_%D8%A7%D9%86%D8%AA%D9%82%D8%A7%D9%84_%D9%88_%D8%AA%D8%B9%DB%8C%DB%8C%D9%86_%D8%AA%DA%A9%D9%84%DB%8C%D9%81\"><\/span>\n<p>  \u06a9\u067e\u06cc\u060c \u0627\u0646\u062a\u0642\u0627\u0644 \u0648 \u062a\u0639\u06cc\u06cc\u0646 \u062a\u06a9\u0644\u06cc\u0641<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0633\u0627\u062e\u062a\u0646 <code>matrix2d<\/code> \u062f\u0631\u0633\u062a \u0627\u0633\u062a\u060c \u0628\u0647 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0646 \u06cc\u06a9 \u0633\u0627\u0632\u0646\u062f\u0647 \u06a9\u067e\u06cc \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code>    <span class=\"n\">matrix2d<\/span><span class=\"p\">(<\/span> <span class=\"n\">matrix2d<\/span> <span class=\"k\">const<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">from<\/span> <span class=\"p\">)<\/span> <span class=\"o\">:<\/span>\n        <span class=\"n\">_dim<\/span><span class=\"p\">{<\/span> <span class=\"n\">from<\/span><span class=\"p\">.<\/span><span class=\"n\">_dim<\/span> <span class=\"p\">},<\/span>\n        <span class=\"n\">_elem<\/span><span class=\"p\">{<\/span> <span class=\"n\">alloc<\/span><span class=\"p\">(<\/span> <span class=\"n\">_dim<\/span> <span class=\"p\">)<\/span> <span class=\"p\">}<\/span>\n    <span class=\"p\">{<\/span>\n        <span class=\"n\">copy_elem<\/span><span class=\"p\">(<\/span> <span class=\"n\">from<\/span> <span class=\"p\">);<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"c1\">\/\/ ...<\/span>\n<span class=\"nl\">private:<\/span>\n    <span class=\"c1\">\/\/ ...<\/span>\n\n    <span class=\"k\">static<\/span> <span class=\"n\">pointer<\/span> <span class=\"n\">alloc<\/span><span class=\"p\">(<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">pair<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">size_type<\/span><span class=\"p\">,<\/span><span class=\"n\">size_type<\/span><span class=\"o\">&gt;<\/span> <span class=\"k\">const<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">dim<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"k\">new<\/span> <span class=\"n\">value_type<\/span><span class=\"p\">[<\/span> <span class=\"n\">dim<\/span><span class=\"p\">.<\/span><span class=\"n\">first<\/span> <span class=\"o\">*<\/span> <span class=\"n\">dim<\/span><span class=\"p\">.<\/span><span class=\"n\">second<\/span> <span class=\"p\">];<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"kt\">void<\/span> <span class=\"n\">copy_elem<\/span><span class=\"p\">(<\/span> <span class=\"n\">matrix2d<\/span> <span class=\"k\">const<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">from<\/span> <span class=\"p\">)<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">for<\/span> <span class=\"p\">(<\/span> <span class=\"n\">size_type<\/span> <span class=\"n\">i<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"n\">from<\/span><span class=\"p\">.<\/span><span class=\"n\">size<\/span><span class=\"p\">();<\/span> <span class=\"o\">++<\/span><span class=\"n\">i<\/span> <span class=\"p\">)<\/span>\n            <span class=\"n\">_elem<\/span><span class=\"p\">[<\/span><span class=\"n\">i<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"n\">from<\/span><span class=\"p\">.<\/span><span class=\"n\">_elem<\/span><span class=\"p\">[<\/span><span class=\"n\">i<\/span><span class=\"p\">];<\/span>\n    <span class=\"p\">}<\/span>\n<span class=\"p\">};<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u06cc\u06a9 \u0633\u0627\u0632\u0646\u062f\u0647 \u062d\u0631\u06a9\u062a \u06a9\u0627\u0631\u0627\u06cc\u06cc \u062d\u0631\u06a9\u062a \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0645\u06cc \u0628\u062e\u0634\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code>    <span class=\"n\">matrix2d<\/span><span class=\"p\">(<\/span> <span class=\"n\">matrix2d<\/span> <span class=\"o\">&amp;&amp;<\/span><span class=\"n\">from<\/span> <span class=\"p\">)<\/span> <span class=\"k\">noexcept<\/span> <span class=\"o\">:<\/span>\n        <span class=\"n\">_dim<\/span><span class=\"p\">{<\/span> <span class=\"n\">from<\/span><span class=\"p\">.<\/span><span class=\"n\">_dim<\/span> <span class=\"p\">},<\/span>\n        <span class=\"n\">_elem<\/span><span class=\"p\">{<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">exchange<\/span><span class=\"p\">(<\/span> <span class=\"n\">from<\/span><span class=\"p\">.<\/span><span class=\"n\">_elem<\/span><span class=\"p\">,<\/span> <span class=\"nb\">nullptr<\/span> <span class=\"p\">)<\/span> <span class=\"p\">}<\/span>\n    <span class=\"p\">{<\/span>\n    <span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<blockquote>\n<p>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 <code>from._dim<\/code> \u0644\u0627\u0632\u0645 \u0646\u06cc\u0633\u062a \u0635\u0641\u0631 \u0634\u0648\u062f<\/p>\n<\/blockquote>\n<p>\u0648 \u062a\u06a9\u0644\u06cc\u0641 \u0631\u0627 \u06a9\u067e\u06cc \u0648 \u062c\u0627\u0628\u062c\u0627 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code>    <span class=\"n\">matrix2d<\/span><span class=\"o\">&amp;<\/span> <span class=\"k\">operator<\/span><span class=\"o\">=<\/span><span class=\"p\">(<\/span> <span class=\"n\">matrix2d<\/span> <span class=\"k\">const<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">from<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">from<\/span> <span class=\"o\">!=<\/span> <span class=\"k\">this<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n            <span class=\"k\">delete<\/span><span class=\"p\">[]<\/span> <span class=\"n\">_elem<\/span><span class=\"p\">;<\/span>\n            <span class=\"n\">_dim<\/span> <span class=\"o\">=<\/span> <span class=\"n\">from<\/span><span class=\"p\">.<\/span><span class=\"n\">_dim<\/span><span class=\"p\">;<\/span>\n            <span class=\"n\">alloc<\/span><span class=\"p\">(<\/span> <span class=\"n\">_dim<\/span> <span class=\"p\">);<\/span>\n            <span class=\"n\">copy_elem<\/span><span class=\"p\">(<\/span> <span class=\"n\">from<\/span> <span class=\"p\">);<\/span>\n        <span class=\"p\">}<\/span>\n        <span class=\"k\">return<\/span> <span class=\"o\">*<\/span><span class=\"k\">this<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"n\">matrix2d<\/span><span class=\"o\">&amp;<\/span> <span class=\"k\">operator<\/span><span class=\"o\">=<\/span><span class=\"p\">(<\/span> <span class=\"n\">matrix2d<\/span> <span class=\"o\">&amp;&amp;<\/span><span class=\"n\">from<\/span> <span class=\"p\">)<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">delete<\/span><span class=\"p\">[]<\/span> <span class=\"n\">_elem<\/span><span class=\"p\">;<\/span>\n        <span class=\"n\">_dim<\/span> <span class=\"o\">=<\/span> <span class=\"n\">from<\/span><span class=\"p\">.<\/span><span class=\"n\">_dim<\/span><span class=\"p\">;<\/span>\n        <span class=\"n\">_elem<\/span> <span class=\"o\">=<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">exchange<\/span><span class=\"p\">(<\/span> <span class=\"n\">from<\/span><span class=\"p\">.<\/span><span class=\"n\">_elem<\/span><span class=\"p\">,<\/span> <span class=\"nb\">nullptr<\/span> <span class=\"p\">);<\/span>\n        <span class=\"k\">return<\/span> <span class=\"o\">*<\/span><span class=\"k\">this<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%BE%D8%A7%DB%8C%D8%A7%D9%86_%D9%84%D9%85%D8%B3\"><\/span>\n<p>  \u067e\u0627\u06cc\u0627\u0646 \u0644\u0645\u0633<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u0639\u0644\u0627\u0648\u0647 <code>size()<\/code> \u06a9\u0647 \u062a\u0639\u062f\u0627\u062f \u06a9\u0644 \u0639\u0646\u0627\u0635\u0631 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f\u060c <code>dim()<\/code> \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631\u0627\u06cc \u0628\u062f\u0633\u062a \u0622\u0648\u0631\u062f\u0646 \u0647\u0631 \u0628\u0639\u062f \u0645\u0641\u06cc\u062f \u0628\u0627\u0634\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code>    <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">pair<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">size_type<\/span><span class=\"p\">,<\/span><span class=\"n\">size_type<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">dim<\/span><span class=\"p\">()<\/span> <span class=\"k\">const<\/span> <span class=\"k\">noexcept<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">_dim<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0648 \u0628\u0627\u0644\u0627\u062e\u0631\u0647\u060c <code>swap()<\/code>\u060c \u0647\u0631 \u062f\u0648 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0639\u0636\u0648:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code>    <span class=\"kt\">void<\/span> <span class=\"nf\">swap<\/span><span class=\"p\">(<\/span> <span class=\"n\">matrix2d<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">other<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n        <span class=\"n\">_dim<\/span> <span class=\"o\">=<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">exchange<\/span><span class=\"p\">(<\/span> <span class=\"n\">other<\/span><span class=\"p\">.<\/span><span class=\"n\">_dim<\/span><span class=\"p\">,<\/span> <span class=\"n\">_dim<\/span> <span class=\"p\">);<\/span>\n        <span class=\"n\">_elem<\/span> <span class=\"o\">=<\/span> <span class=\"n\">std<\/span><span class=\"o\">::<\/span><span class=\"n\">exchange<\/span><span class=\"p\">(<\/span> <span class=\"n\">other<\/span><span class=\"p\">.<\/span><span class=\"n\">_elem<\/span><span class=\"p\">,<\/span> <span class=\"n\">_elem<\/span> <span class=\"p\">);<\/span>\n    <span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0648 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062c\u0647\u0627\u0646\u06cc \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 <code>std::swap()<\/code> \u0622\u062b\u0627\u0631:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight cpp\"><code><span class=\"k\">namespace<\/span> <span class=\"n\">std<\/span> <span class=\"p\">{<\/span>\n    <span class=\"k\">template<\/span><span class=\"o\">&lt;<\/span><span class=\"k\">typename<\/span> <span class=\"nc\">T<\/span><span class=\"p\">&gt;<\/span>\n    <span class=\"kr\">inline<\/span> <span class=\"kt\">void<\/span> <span class=\"n\">swap<\/span><span class=\"p\">(<\/span> <span class=\"n\">matrix2d<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">T<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">a<\/span><span class=\"p\">,<\/span> <span class=\"n\">matrix2d<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">T<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">b<\/span> <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n        <span class=\"n\">a<\/span><span class=\"p\">.<\/span><span class=\"n\">swap<\/span><span class=\"p\">(<\/span> <span class=\"n\">b<\/span> <span class=\"p\">);<\/span>\n    <span class=\"p\">}<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%86%D8%AA%DB%8C%D8%AC%D9%87\"><\/span>\n<p>  \u0646\u062a\u06cc\u062c\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0642\u062f\u0631\u062a \u06a9\u0644\u0627\u0633\u200c\u0647\u0627 \u062f\u0631 C++ \u0628\u0627 \u062d\u0630\u0641 \u0646\u0634\u0627\u0646\u06af\u0631\u0647\u0627\u06cc \u0631\u062f\u06cc\u0641 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u062f\u0631 C\u060c \u0627\u062c\u0631\u0627\u06cc \u06a9\u0627\u0631\u0622\u0645\u062f\u062a\u0631 \u062d\u0627\u0641\u0638\u0647 \u0645\u0627\u062a\u0631\u06cc\u0633 \u062f\u0648\u0628\u0639\u062f\u06cc \u062a\u062e\u0635\u06cc\u0635 \u06cc\u0627\u0641\u062a\u0647 \u067e\u0648\u06cc\u0627 \u0631\u0627 \u0627\u0645\u06a9\u0627\u0646\u200c\u067e\u0630\u06cc\u0631 \u0645\u06cc\u200c\u0633\u0627\u0632\u062f &#8211; \u0627\u0645\u0627 \u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0636\u0631\u0628 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u062a\u0635\u0627\u062f\u0641\u06cc \u0639\u0646\u0635\u0631.<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u0645\u0639\u0631\u0641\u06cc \u0628\u0627 \u0641\u0631\u0636 \u0627\u06cc\u0646\u06a9\u0647 \u00ab\u062a\u062e\u0635\u06cc\u0635 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc \u062f\u0648\u0628\u0639\u062f\u06cc \u0628\u0647\u200c\u0637\u0648\u0631 \u0645\u0624\u062b\u0631 (\u0648 \u062f\u0631\u0633\u062a!)\u00bb \u0631\u0627 \u062f\u0631 \u0632\u0628\u0627\u0646 C \u062e\u0648\u0627\u0646\u062f\u0647\u200c\u0627\u06cc\u062f\u060c \u0622\u062e\u0631\u06cc\u0646 \u067e\u0627\u0631\u0627\u06af\u0631\u0627\u0641 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0627\u0634\u0627\u0631\u0647 \u06a9\u0631\u062f: \u062f\u0631 C++\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0646\u0634\u0627\u0646\u06af\u0631\u0647\u0627\u06cc \u0631\u062f\u06cc\u0641 \u0631\u0627 \u062d\u0630\u0641 \u06a9\u0646\u06cc\u062f \u0648 \u0647\u0645\u0686\u0646\u0627\u0646 \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f [][] \u0646\u062d\u0648 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0642\u0627\u0644\u0628 \u0647\u0627 \u0648 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f operator[]()\u060c \u0627\u0645\u0627 \u0627\u06cc\u0646 \u06cc\u06a9 &hellip;<\/p>\n","protected":false},"author":2,"featured_media":31370,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[339],"tags":[],"class_list":["post-31369","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dev"],"_links":{"self":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/31369","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/comments?post=31369"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/31369\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/31370"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=31369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=31369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=31369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}