{"id":9995,"date":"2022-09-21T18:39:08","date_gmt":"2022-09-21T13:09:08","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/"},"modified":"2022-09-21T18:39:08","modified_gmt":"2022-09-21T13:09:08","slug":"solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/","title":{"rendered":"[Solved] C – Is there a way to leave a variable unchanged outside of the loop?"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

\n
\n
<\/div>\n
\n
\n

You may be looking for the declaration of additional blocks as in<\/p>\n

#include<stdio.h>\nint main() {\n  int i=1;\n  printf(\"before %d\\n\",i);\n  {\n    int i=0;\n    printf(\"within %d\\n\",i);\n  }\n  printf(\"after %d\\n\",i);\n  return(0);\n}\n<\/code><\/pre>\n
which when executed yields<\/p>\n
before 1\nwithin 0\nafter 1\n<\/code><\/pre>\n
From the comment I grasp that a function invocation may be preferable which may be like<\/p>\n
#include<stdio.h>\nint div_10_count(long long val) {\n    int count=0;\n    while(val>0) {\n        val \/= 10;\n        count++;\n    }\n    return(count);\n}\n\nint main() {\n  long long val=10000000000L;\n  printf(\"Before: val=%lld\\n\",val);\n  printf(\"Returned: %d\\n\",div_10_count(val));\n  printf(\"After: val=%lld\\n\",val);\n  return(0);\n}\n<\/code><\/pre>\n
shows<\/p>\n
Before: val=10000000000\nReturned: 11\nAfter: val=10000000000\n<\/code><\/pre>\n
so the variable val remains unchanged even though the function works with it. This would be different when passing the parameter by reference, i.e. as indicated with the “&”.<\/p>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            2<\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved C – Is there a way to leave a variable unchanged outside of the loop? <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] You may be looking for the declaration of additional blocks as in #include<stdio.h> int main() { int i=1; printf(“before %d\\n”,i); { int i=0; printf(“within %d\\n”,i); } printf(“after %d\\n”,i); return(0); } which when executed yields before 1 within 0 after 1 From the comment I grasp that a function invocation may be preferable which may … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,816],"class_list":["post-9995","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-cs50"],"yoast_head":"\n[Solved] C - Is there a way to leave a variable unchanged outside of the loop? - JassWeb<\/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:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] C - Is there a way to leave a variable unchanged outside of the loop? - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You may be looking for the declaration of additional blocks as in #include<stdio.h> int main() { int i=1; printf("before %dn",i); { int i=0; printf("within %dn",i); } printf("after %dn",i); return(0); } which when executed yields before 1 within 0 after 1 From the comment I grasp that a function invocation may be preferable which may ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/\" \/>\n<meta property=\"og:site_name\" content=\"JassWeb\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-21T13:09:08+00:00\" \/>\n<meta name=\"author\" content=\"Kirat\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kirat\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\\\/\"},\"author\":{\"name\":\"Kirat\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#\\\/schema\\\/person\\\/65c9c7b7958150c0dc8371fa35dd7c31\"},\"headline\":\"[Solved] C – Is there a way to leave a variable unchanged outside of the loop?\",\"datePublished\":\"2022-09-21T13:09:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\\\/\"},\"wordCount\":97,\"publisher\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#organization\"},\"keywords\":[\"c++\",\"cs50\"],\"articleSection\":[\"Solved\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\\\/\",\"url\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\\\/\",\"name\":\"[Solved] C - Is there a way to leave a variable unchanged outside of the loop? - JassWeb\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#website\"},\"datePublished\":\"2022-09-21T13:09:08+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"[Solved] C – Is there a way to leave a variable unchanged outside of the loop?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#website\",\"url\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/\",\"name\":\"JassWeb\",\"description\":\"Build High-quality Websites\",\"publisher\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#organization\",\"name\":\"Jass Web\",\"url\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/jassweb.com\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/jass-website-logo-1.png\",\"contentUrl\":\"https:\\\/\\\/jassweb.com\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/jass-website-logo-1.png\",\"width\":693,\"height\":132,\"caption\":\"Jass Web\"},\"image\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#\\\/schema\\\/person\\\/65c9c7b7958150c0dc8371fa35dd7c31\",\"name\":\"Kirat\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/wp-content\\\/litespeed\\\/avatar\\\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1777008400\",\"url\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/wp-content\\\/litespeed\\\/avatar\\\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1777008400\",\"contentUrl\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/wp-content\\\/litespeed\\\/avatar\\\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1777008400\",\"caption\":\"Kirat\"},\"sameAs\":[\"http:\\\/\\\/jassweb.com\"],\"url\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/author\\\/jaspritsinghghumangmail-com\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"[Solved] C - Is there a way to leave a variable unchanged outside of the loop? - JassWeb","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:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/","og_locale":"en_US","og_type":"article","og_title":"[Solved] C - Is there a way to leave a variable unchanged outside of the loop? - JassWeb","og_description":"[ad_1] You may be looking for the declaration of additional blocks as in #include<stdio.h> int main() { int i=1; printf(\"before %dn\",i); { int i=0; printf(\"within %dn\",i); } printf(\"after %dn\",i); return(0); } which when executed yields before 1 within 0 after 1 From the comment I grasp that a function invocation may be preferable which may ... Read more","og_url":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/","og_site_name":"JassWeb","article_published_time":"2022-09-21T13:09:08+00:00","author":"Kirat","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Kirat","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/#article","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/"},"author":{"name":"Kirat","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31"},"headline":"[Solved] C – Is there a way to leave a variable unchanged outside of the loop?","datePublished":"2022-09-21T13:09:08+00:00","mainEntityOfPage":{"@id":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/"},"wordCount":97,"publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"keywords":["c++","cs50"],"articleSection":["Solved"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/","url":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/","name":"[Solved] C - Is there a way to leave a variable unchanged outside of the loop? - JassWeb","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/#website"},"datePublished":"2022-09-21T13:09:08+00:00","breadcrumb":{"@id":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/jassweb.com\/solved\/solved-c-is-there-a-way-to-leave-a-variable-unchanged-outside-of-the-loop\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/jassweb.com\/solved\/"},{"@type":"ListItem","position":2,"name":"[Solved] C – Is there a way to leave a variable unchanged outside of the loop?"}]},{"@type":"WebSite","@id":"https:\/\/jassweb.com\/solved\/#website","url":"https:\/\/jassweb.com\/solved\/","name":"JassWeb","description":"Build High-quality Websites","publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/jassweb.com\/solved\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/jassweb.com\/solved\/#organization","name":"Jass Web","url":"https:\/\/jassweb.com\/solved\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/","url":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","contentUrl":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","width":693,"height":132,"caption":"Jass Web"},"image":{"@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31","name":"Kirat","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1777008400","url":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1777008400","contentUrl":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1777008400","caption":"Kirat"},"sameAs":["http:\/\/jassweb.com"],"url":"https:\/\/jassweb.com\/solved\/author\/jaspritsinghghumangmail-com\/"}]}},"_links":{"self":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/9995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/comments?post=9995"}],"version-history":[{"count":0,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/9995\/revisions"}],"wp:attachment":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/media?parent=9995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/categories?post=9995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/tags?post=9995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}