{"id":10006,"date":"2023-10-27T09:52:14","date_gmt":"2023-10-27T09:52:14","guid":{"rendered":"https:\/\/adelnasim.com\/docs\/courses\/cpp-tutorial\/static-variable\/"},"modified":"2024-04-07T01:19:33","modified_gmt":"2024-04-07T01:19:33","slug":"static-variable","status":"publish","type":"docs","link":"https:\/\/adelnasim.com\/ar\/docs\/courses\/cpp-tutorial\/static-variable\/","title":{"rendered":"\u0627\u0644\u0645\u062a\u063a\u064a\u0631 \u0627\u0644\u0633\u0627\u0643\u0646 - Static variable"},"content":{"rendered":"<p data-sourcepos=\"1:1-1:173\">\u0627\u0644\u0645\u062a\u063a\u064a\u0631 \u0627\u0644\u0633\u0627\u0643\u0646 \u0641\u064a \u0644\u063a\u0629 C++ \u0647\u0648 \u0645\u062a\u063a\u064a\u0631 \u064a\u062a\u0645 \u062a\u062e\u0635\u064a\u0635\u0647 \u0645\u0631\u0629 \u0648\u0627\u062d\u062f\u0629 \u0648\u064a\u0628\u0642\u0649 \u0641\u064a \u0627\u0644\u0630\u0627\u0643\u0631\u0629 \u0637\u0648\u0627\u0644 \u062a\u0646\u0641\u064a\u0630 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c. \u064a\u0645\u0643\u0646 \u0627\u0644\u0625\u0639\u0644\u0627\u0646 \u0639\u0646 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0641\u064a \u0627\u0644\u0646\u0637\u0627\u0642 \u0627\u0644\u0639\u0627\u0644\u0645\u064a\u060c \u0623\u0648 \u0646\u0637\u0627\u0642 \u0627\u0644\u0640 namespace\u060c \u0623\u0648 \u0646\u0637\u0627\u0642 \u0627\u0644\u0640 class\u060c \u0623\u0648 \u0646\u0637\u0627\u0642 \u0627\u0644\u062f\u0627\u0644\u0629.<\/p>\n<p data-sourcepos=\"3:1-3:120\">\u062a\u062a\u0645 \u062a\u0647\u064a\u0626\u0629 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0639\u0644\u0649 \u0627\u0644\u0646\u0637\u0627\u0642 \u0627\u0644\u0639\u0627\u0644\u0645\u064a \u0639\u0646\u062f \u0628\u062f\u0621 \u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0648\u064a\u062a\u0645 \u062a\u062f\u0645\u064a\u0631\u0647\u0627 \u0639\u0646\u062f \u0627\u0646\u062a\u0647\u0627\u0621 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c. \u062a\u062a\u0645 \u062a\u0647\u064a\u0626\u0629 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0641\u064a \u0646\u0637\u0627\u0642 \u0627\u0644\u0640 namespace \u0639\u0646\u062f \u062a\u062d\u0645\u064a\u0644 \u0627\u0644\u0640 namespace \u0648\u064a\u062a\u0645 \u0625\u062a\u0644\u0627\u0641\u0647\u0627 \u0639\u0646\u062f \u0625\u0644\u063a\u0627\u0621 \u062a\u062d\u0645\u064a\u0644\u0647\u0627. \u062a\u062a\u0645 \u062a\u0647\u064a\u0626\u0629 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0641\u064a \u0627\u0644\u0640 classes \u0639\u0646\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0640 class \u0644\u0623\u0648\u0644 \u0645\u0631\u0629 \u0648\u064a\u062a\u0645 \u062a\u062f\u0645\u064a\u0631\u0647\u0627 \u0639\u0646\u062f \u0627\u0646\u062a\u0647\u0627\u0621 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c. \u062a\u062a\u0645 \u062a\u0647\u064a\u0626\u0629 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0641\u064a \u0627\u0644\u062f\u0648\u0627\u0644 \u0639\u0646\u062f \u0627\u0633\u062a\u062f\u0639\u0627\u0621 \u0627\u0644\u062f\u0627\u0644\u0629 \u0644\u0623\u0648\u0644 \u0645\u0631\u0629 \u0648\u064a\u062a\u0645 \u062a\u062f\u0645\u064a\u0631\u0647\u0627 \u0639\u0646\u062f \u0625\u0631\u062c\u0627\u0639 \u0627\u0644\u062f\u0627\u0644\u0629.<\/p>\n<p data-sourcepos=\"5:1-5:20\">\u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0643\u0648\u0646 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0645\u0641\u064a\u062f\u0629 \u0644\u0645\u062c\u0645\u0648\u0639\u0629 \u0645\u062a\u0646\u0648\u0639\u0629 \u0645\u0646 \u0627\u0644\u0623\u0647\u062f\u0627\u0641\u060c \u0645\u062b\u0644:<\/p>\n<ul data-sourcepos=\"7:1-10:0\">\n<li data-sourcepos=\"7:1-7:160\">\u062a\u062e\u0632\u064a\u0646 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0627\u0644\u0640 global state: \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0644\u062a\u062e\u0632\u064a\u0646 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0627\u0644\u0640 global state \u0627\u0644\u062a\u064a \u064a\u062c\u0628 \u0627\u0644\u0648\u0635\u0648\u0644 \u0625\u0644\u064a\u0647\u0627 \u0645\u0646 \u062e\u0644\u0627\u0644 \u062f\u0648\u0627\u0644 \u0645\u062a\u0639\u062f\u062f\u0629 \u0641\u064a \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c.<\/li>\n<li data-sourcepos=\"8:1-8:131\">\u062a\u0646\u0641\u064a\u0630 \u0627\u0644\u0645\u0641\u0631\u062f\u0627\u062a: \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0644\u062a\u0646\u0641\u064a\u0630 \u0627\u0644\u0645\u0641\u0631\u062f\u0627\u062a\u060c \u0648\u0647\u064a classes \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0645\u062b\u064a\u0644 \u0648\u0627\u062d\u062f \u0641\u0642\u0637.<\/li>\n<li data-sourcepos=\"9:1-10:0\">\u062a\u0646\u0641\u064a\u0630 \u0627\u0644\u0640 lazy initialization: \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0644\u062a\u0646\u0641\u064a\u0630 \u0627\u0644\u0640 lazy initialization\u060c \u0648\u0647\u064a \u062a\u0642\u0646\u064a\u0629 \u0644\u062a\u0623\u062e\u064a\u0631 \u062a\u0647\u064a\u0626\u0629 \u0627\u0644\u0645\u062a\u063a\u064a\u0631 \u062d\u062a\u0649 \u064a\u062a\u0645 \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0647 \u0644\u0623\u0648\u0644 \u0645\u0631\u0629.<\/li>\n<\/ul>\n<p data-sourcepos=\"11:1-11:65\">\u0641\u064a\u0645\u0627 \u064a\u0644\u064a \u0645\u062b\u0627\u0644 \u0644\u0645\u062a\u063a\u064a\u0631 \u0633\u0627\u0643\u0646 \u062a\u0645 \u062a\u0639\u0631\u064a\u0641\u0647 \u0641\u064a \u062f\u0627\u0644\u0629:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">#include &lt;iostream&gt;\r\nusing namespace std;\r\n\r\nvoid fun()\r\n{\r\n    static int x = 0;\r\n    x++;\r\n    cout &lt;&lt; x &lt;&lt; endl;\r\n}\r\n\r\nint main()\r\n{\r\n    fun();\r\n    fun();\r\n    return 0;\r\n}\r\n<\/pre>\n<p data-sourcepos=\"1:1-1:138\">\u064a\u0639\u0631\u0651\u0641 \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u062f\u0627\u0644\u0651\u0629 \u062a\u0633\u0645\u0649 <code class=\"\">fun()<\/code> \u062b\u0645 \u064a\u0633\u062a\u062f\u0639\u064a\u0647\u0627 \u0645\u0631\u062a\u064a\u0646 \u0645\u0646 \u0627\u0644\u062f\u0627\u0644\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u0629 <code class=\"\">main()<\/code> . \u0627\u0644\u062f\u0627\u0644\u0629 <code class=\"\">fun()<\/code> \u062a\u0639\u0644\u0646 \u0639\u0646 \u0645\u062a\u063a\u064a\u0631 \u0633\u0627\u0643\u0646 \u064a\u0633\u0645\u0649 <code class=\"\">x<\/code> \u0648\u064a\u0632\u064a\u062f\u0647 \u0641\u064a \u0643\u0644 \u0645\u0631\u0629 \u064a\u062a\u0645 \u0627\u0633\u062a\u062f\u0639\u0627\u0624\u0647\u0627. \u062a\u0642\u0648\u0645 \u0627\u0644\u062f\u0627\u0644\u0629 \u0628\u0639\u062f \u0630\u0644\u0643 \u0628\u0637\u0628\u0627\u0639\u0629 \u0642\u064a\u0645\u0629 <code class=\"\">x<\/code> \u0625\u0644\u0649 \u0634\u0627\u0634\u0629 \u0627\u0644\u0645\u062e\u0631\u062c\u0627\u062a.<\/p>\n<p data-sourcepos=\"3:1-3:143\">\u0644\u0623\u0646 <code class=\"\">x<\/code> \u0647\u0648 \u0645\u062a\u063a\u064a\u0631 \u0633\u0627\u0643\u0646\u060c \u0648\u064a\u062a\u0645 \u0627\u0644\u0627\u062d\u062a\u0641\u0627\u0638 \u0628\u0642\u064a\u0645\u062a\u0647 \u0628\u064a\u0646 \u0627\u0633\u062a\u062f\u0639\u0627\u0621\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0644. \u0648\u0647\u0630\u0627 \u064a\u0639\u0646\u064a \u0623\u0646\u0647 \u0639\u0646\u062f\u0645\u0627 \u064a\u062a\u0645 \u0625\u0633\u062a\u062f\u0639\u0627\u0621 \u0627\u0644\u062f\u0627\u0644\u0629 <code class=\"\">fun()<\/code> \u0644\u0644\u0645\u0631\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629\u060c \u0642\u064a\u0645\u0629 \u0627\u0644\u0645\u062a\u063a\u064a\u0631 <code class=\"\">x<\/code> \u0633\u062a\u0643\u0648\u0646 1 \u0648\u0644\u064a\u0633 0. \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a \u0641\u0625\u0646 \u0645\u062e\u0631\u062c\u0627\u062a \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0633\u062a\u0643\u0648\u0646 \u0643\u0645\u0627 \u064a\u0644\u064a:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">1\r\n2<\/pre>\n<p>\u064a\u0648\u0636\u062d \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0643\u064a\u0641 \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0643\u0646\u0629 \u0644\u062a\u062e\u0632\u064a\u0646 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u064a \u064a\u062c\u0628 \u0627\u0644\u0648\u0635\u0648\u0644 \u0625\u0644\u064a\u0647\u0627 \u0639\u0646 \u0637\u0631\u064a\u0642 \u0627\u0633\u062a\u062f\u0639\u0627\u0621\u0627\u062a \u0645\u062a\u0639\u062f\u062f\u0629 \u0644\u0644\u062f\u0627\u0644\u0629.<\/p>","protected":false},"excerpt":{"rendered":"<p>A static variable in C++ is a variable that is allocated once and remains in memory throughout the execution of the program. Static variables can be declared at global scope, namespace scope, class scope, or function scope. Static variables at global scope are initialized when the program starts and are destroyed when the program ends. [&hellip;]<\/p>","protected":false},"author":3,"featured_media":0,"parent":2744,"menu_order":28,"comment_status":"closed","ping_status":"closed","template":"","doc_tag":[],"class_list":["post-10006","docs","type-docs","status-publish","hentry","no-post-thumbnail"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/docs\/10006","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/comments?post=10006"}],"version-history":[{"count":3,"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/docs\/10006\/revisions"}],"predecessor-version":[{"id":10009,"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/docs\/10006\/revisions\/10009"}],"up":[{"embeddable":true,"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/docs\/2744"}],"wp:attachment":[{"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/media?parent=10006"}],"wp:term":[{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/adelnasim.com\/ar\/wp-json\/wp\/v2\/doc_tag?post=10006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}