{"id":1638,"date":"2019-03-11T19:33:14","date_gmt":"2019-03-11T11:33:14","guid":{"rendered":"http:\/\/people.utm.my\/ajune\/?p=1638"},"modified":"2019-06-20T16:03:46","modified_gmt":"2019-06-20T08:03:46","slug":"what-is-the-difference-between-const-int-const-int-const-and-int-const","status":"publish","type":"post","link":"https:\/\/people.utm.my\/ajune\/2019\/03\/11\/what-is-the-difference-between-const-int-const-int-const-and-int-const\/","title":{"rendered":"What is the difference between const int*, const int * const, and int const *?"},"content":{"rendered":"<p>Read it backwards (as driven by\u00a0<a href=\"http:\/\/c-faq.com\/decl\/spiral.anderson.html\" rel=\"noreferrer\">Clockwise\/Spiral Rule<\/a>):<\/p>\n<ul>\n<li><code>int*<\/code>\u00a0&#8211; pointer to int<\/li>\n<li><code>int const *<\/code>\u00a0&#8211; pointer to const int<\/li>\n<li><code>int * const<\/code>\u00a0&#8211; const pointer to int<\/li>\n<li><code>int const * const<\/code>\u00a0&#8211; const pointer to const int<\/li>\n<\/ul>\n<p>Now the first\u00a0<code>const<\/code>\u00a0can be on either side of the type so:<\/p>\n<ul>\n<li><code>const int *<\/code>\u00a0==\u00a0<code>int const *<\/code><\/li>\n<li><code>const int * const<\/code>\u00a0==\u00a0<code>int const * const<\/code><\/li>\n<\/ul>\n<p>If you want to go really crazy you can do things like this:<\/p>\n<ul>\n<li><code>int **<\/code>\u00a0&#8211; pointer to pointer to int<\/li>\n<li><code>int ** const<\/code>\u00a0&#8211; a const pointer to a pointer to an int<\/li>\n<li><code>int * const *<\/code>\u00a0&#8211; a pointer to a const pointer to an int<\/li>\n<li><code>int const **<\/code>\u00a0&#8211; a pointer to a pointer to a const int<\/li>\n<li><code>int * const * const<\/code>\u00a0&#8211; a const pointer to a const pointer to an int<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Read it backwards (as driven by\u00a0Clockwise\/Spiral Rule): int*\u00a0&#8211; pointer to int int const *\u00a0&#8211; pointer to const int int * const\u00a0&#8211; const pointer to int int const * const\u00a0&#8211; const pointer to const int Now the first\u00a0const\u00a0can be on either side of the type so: const int *\u00a0==\u00a0int const * const int * const\u00a0==\u00a0int const [&hellip;]<\/p>\n","protected":false},"author":542,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1638","post","type-post","status-publish","format-standard","hentry","category-teaching","entry"],"_links":{"self":[{"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/posts\/1638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/users\/542"}],"replies":[{"embeddable":true,"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/comments?post=1638"}],"version-history":[{"count":1,"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/posts\/1638\/revisions"}],"predecessor-version":[{"id":1639,"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/posts\/1638\/revisions\/1639"}],"wp:attachment":[{"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/media?parent=1638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/categories?post=1638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/people.utm.my\/ajune\/wp-json\/wp\/v2\/tags?post=1638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}