{"id":146573,"date":"2025-08-08T12:02:07","date_gmt":"2025-08-08T06:32:07","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=146573"},"modified":"2025-08-08T12:02:07","modified_gmt":"2025-08-08T06:32:07","slug":"cpp-call-by-value-and-return-by-value","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/cpp-call-by-value-and-return-by-value\/","title":{"rendered":"Call by Value and Return by Value in C++"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Function in CPP\r\n#include&lt;iostream&gt;\r\nusing namespace std;\r\nvoid addition();  \/\/ declare\r\nint main()\r\n{\r\n     system(\"cls\");\r\n     cout&lt;&lt;\"\\nBefore function\";\r\n       addition();   \/\/call\r\n     cout&lt;&lt;\"\\nAfter function\";\r\n     return 0;\r\n}\r\n\/\/local function\r\nvoid addition()   \/\/defination\r\n{\r\n   int a,b,c;\r\n   cout&lt;&lt;\"\\nEnter two number\";\r\n   cin&gt;&gt;a&gt;&gt;b;\r\n   c=a+b;\r\n   cout&lt;&lt;\"\\nAddition is:\"&lt;&lt;c;\r\n\r\n}\r\n\r\n\r\n<\/pre>\n<h3>Program 2<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Function in CPP\r\n#include&lt;iostream&gt;\r\n#include \"dataflair.h\"\r\nusing namespace std;\r\n\r\nint main()\r\n{\r\n     system(\"cls\");\r\n     \/\/addition(70,20);   \/\/ call by value (argument )\r\n     int x,y,z;\r\n     cout&lt;&lt;\"Enter two number\";\r\n     cin&gt;&gt;x&gt;&gt;y;\r\n     z=addition(x,y); \r\n     cout&lt;&lt;\"Addition is: \"&lt;&lt;z;\r\n     return 0;\r\n}<\/pre>\n<h3>Program 3<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Function in CPP\r\n#include&lt;iostream&gt;\r\n#include \"dataflair.h\"\r\nusing namespace std;\r\n\r\nint main()\r\n{\r\n     system(\"cls\");\r\n     cout&lt;&lt;factorial(5);\r\n     return 0;\r\n}\r\n\r\n\/*\r\n  techvidvan.h\r\n    reverse\r\n    prime\r\n    palindrom\r\n*\/<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/ Function in CPP #include&lt;iostream&gt; using namespace std; void addition(); \/\/ declare int main() { system(&#8220;cls&#8221;); cout&lt;&lt;&#8220;\\nBefore function&#8221;; addition(); \/\/call cout&lt;&lt;&#8220;\\nAfter function&#8221;; return 0; } \/\/local function void addition() \/\/defination { int&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20172],"tags":[34227,34228,28585,2263,29484,35042,35043,29219,29218],"class_list":["post-146573","post","type-post","status-publish","format-standard","hentry","category-cpp","tag-c-call-by-value","tag-c-return-by-value","tag-c-tutorial","tag-c","tag-c-call-by-value-and-return-by-value","tag-c-function-call-by-value","tag-c-function-return-by-value","tag-c-practical","tag-c-program"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Call by Value and Return by Value in C++ - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/cpp-call-by-value-and-return-by-value\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Call by Value and Return by Value in C++ - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ Function in CPP #include&lt;iostream&gt; using namespace std; void addition(); \/\/ declare int main() { system(&quot;cls&quot;); cout&lt;&lt;&quot;nBefore function&quot;; addition(); \/\/call cout&lt;&lt;&quot;nAfter function&quot;; return 0; } \/\/local function void addition() \/\/defination { int&#046;&#046;&#046;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/cpp-call-by-value-and-return-by-value\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-08T06:32:07+00:00\" \/>\n<meta name=\"author\" content=\"DataFlair Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DataFlair Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Call by Value and Return by Value in C++ - DataFlair","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/cpp-call-by-value-and-return-by-value\/","og_locale":"en_US","og_type":"article","og_title":"Call by Value and Return by Value in C++ - DataFlair","og_description":"Program 1 \/\/ Function in CPP #include&lt;iostream&gt; 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