{"id":144564,"date":"2025-03-12T12:18:51","date_gmt":"2025-03-12T06:48:51","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=144564"},"modified":"2025-03-12T12:18:51","modified_gmt":"2025-03-12T06:48:51","slug":"user-defined-function-in-c","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/user-defined-function-in-c\/","title":{"rendered":"User-Defined Function in C"},"content":{"rendered":"

Program 1<\/h3>\n
\/\/ Program for user define function\r\n#include<stdio.h>\r\n#include<conio.h>\r\n#include<string.h>\r\n\r\nint addition(int ,int);  \/\/ declare\r\n\r\nint main()\r\n{\r\n    system(\"cls\");\r\n    int x,y,z;\r\n    printf(\"Enter two number\");\r\n    scanf(\"%d%d\",&x,&y);\r\n     z=addition(x,y);  \/\/calling    call by value \r\n     printf(\"Addition is %d\",z);\r\n    return 0;\r\n}\r\nint addition(int a,int b)  \/\/ defination\r\n{\r\n      int c;\r\n      c=a+b;\r\n     return(c);\r\n}<\/pre>\n
Program 2<\/h3>\n
\/\/ Program for user define function\r\n#include<stdio.h>\r\n#include<conio.h>\r\n#include<string.h>\r\n\r\n int factorial(int); \/\/ declare\r\n\r\nint main()\r\n{\r\n     int x;\r\n     system(\"cls\");\r\n     x=factorial(5);\r\n     printf(\"Factorial is %d: \",x); \r\n     return 0;\r\n}\r\nint factorial(int n)\r\n{\r\n    int f=1;\r\n    while(n!=0)\r\n    {\r\n        f=f*n;\r\n        n--;\r\n    }\r\n    return(f);\r\n\r\n}<\/pre>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Program 1 \/\/ Program for user define function #include<stdio.h> #include<conio.h> #include<string.h> int addition(int ,int); \/\/ declare int main() { system(“cls”); int x,y,z; printf(“Enter two number”); scanf(“%d%d”,&x,&y); z=addition(x,y); \/\/calling call by value printf(“Addition is %d”,z);...<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19488],"tags":[33865,23914,29963,29219,29218,20005,15235],"class_list":["post-144564","post","type-post","status-publish","format-standard","hentry","category-c-programming","tag-c-program-for-user-defined-functions","tag-c-programming","tag-c-user-defined-functions","tag-c-practical","tag-c-program","tag-user-defined-functions-in-c","tag-user-defined-functions"],"yoast_head":"\nUser-Defined Function 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\/user-defined-function-in-c\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"User-Defined Function in C - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ Program for user define function #include<stdio.h> #include<conio.h> #include<string.h> int addition(int ,int); \/\/ declare int main() { system("cls"); int x,y,z; printf("Enter two number"); scanf("%d%d",&x,&y); z=addition(x,y); \/\/calling call by value printf("Addition is %d",z);...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/user-defined-function-in-c\/\" \/>\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=\"2025-03-12T06:48:51+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":"User-Defined Function 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\/user-defined-function-in-c\/","og_locale":"en_US","og_type":"article","og_title":"User-Defined Function in C - DataFlair","og_description":"Program 1 \/\/ Program for user define function #include<stdio.h> #include<conio.h> #include<string.h> int addition(int ,int); 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